ISO 31657-3:2025
(Main)Plain bearings — Hydrodynamic plain journal bearings under steady-state conditions — Part 3: Characteristic values for calculation of tilting pad journal bearings
Plain bearings — Hydrodynamic plain journal bearings under steady-state conditions — Part 3: Characteristic values for calculation of tilting pad journal bearings
This document specifies the characteristic values for selected tilting-pad journal bearings with four or five centrally or eccentrically supported tilting pads, and with angular spans of pad sliding surfaces of Ω = 80°, 60° and 45°.
Paliers lisses — Paliers lisses hydrodynamiques radiaux fonctionnant en régime stabilisé — Partie 3: Titre manque
General Information
Relations
Standards Content (Sample)
International
Standard
ISO 31657-3
First edition
Plain bearings — Hydrodynamic
2025-10
plain journal bearings under
steady-state conditions —
Part 3:
Characteristic values for calculation
of tilting pad journal bearings
Reference number
© ISO 2025
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ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Characteristic values for calculation of multi-lobed journal bearings . 1
4.1 General .1
4.2 Tilting-pad journal bearings with four tilting pads .4
4.3 Tilting-pad journal bearings with five tilting pads . 39
Annex A (informative) Characteristic curves for tilting-pad bearings with five pads .62
Bibliography .73
iii
Foreword
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This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 8,
Calculation methods for plain bearings and their applications.
This first edition of ISO 31657-3 cancels and replaces ISO/TS 31657-3:2020, which has been technically
revised.
The main changes are as follows:
— the title has been modified;
— Figure 1 has been updated.
A list of all parts in the ISO 31657 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
International Standard ISO 31657-3:2025(en)
Plain bearings — Hydrodynamic plain journal bearings under
steady-state conditions —
Part 3:
Characteristic values for calculation of tilting pad journal
bearings
1 Scope
This document specifies the characteristic values for selected tilting-pad journal bearings with four or five
centrally or eccentrically supported tilting pads, and with angular spans of pad sliding surfaces of Ω = 80°,
60° and 45°.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 31657-1:2025, Plain bearings — Hydrodynamic plain journal bearings under steady-state conditions — Part
1: Calculation of multi-lobed and tilting pad journal bearings
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Characteristic values for calculation of multi-lobed journal bearings
4.1 General
The characteristic values plotted and listed in this clause are required for the operationally safe design
of hydrodynamic tilting-pad journal bearings in accordance with ISO 31657-1. They are based on the
presumptions and boundary conditions indicated there and only apply to stationary operating states. The
symbols used shall be in accordance with ISO 31657-1:2025, Table 1; calculation examples are also given in
ISO 31657-1:2025, Annex A.
The calculation method described in ISO 31657-1 can also be used for other tilting-pad journal bearing
designs, if the numerical solutions of the basic equations are available in the same manner for these designs.
NOTE Equivalent calculation procedures exist that enable operating conditions to be estimated and checked
against acceptable conditions. Another calculation procedure is equally admissible.
The characteristic values for symmetrically loaded tilting-pad journal bearings with four and five centrally
*
(relative angular distance between leading edge and pivot position of pad Ω = 0,5)
F
*
or eccentrically (Ω = 0,6) supported tilting pads are indicated.
F
The characteristic values were calculated for the geometrical parameters summarised in Figure 1 (angular
spans of pad sliding surface Ω, angular coordinates of pivot position of pad ϕ , profile factors K , bearing
F,1 P
* *
width ratios B ) in the operating range 0,02 ≤ h ≤ 1. The following (dimensionless) characteristic values
min
are individually listed from Tables 1 to 56:
a) Static characteristic values
The Sommerfeld number is given as Formula (1):
F⋅ψ
eff
So= (1)
BD⋅⋅ηω⋅
eff
The relative eccentricity is given as Formula (2):
e
ε = (2)
C
Re, ff
Attitude angle β in °C.
For the product of maximum lubricant film pressure parameter and Sommerfeld number, see
Formula (3):
p ·ψ
* maxeff
pS· o= (3)
max
ηω⋅
eff
For the minimum relative lubricant film thickness, see Formula (4):
h
* min
h = (4)
min
C
Re, ff
For the friction force parameter, see Formula (5):
f
*
F =⋅So (5)
f
ψ
eff
For the lubricant flow rate parameter due to hydrodynamic pressure build-up, see Formula (6):
Q
* 3
Q = (6)
Q
For the lubricant flow rate parameter due to supply pressure, see Formula (7):
Q
p
*
Q = (7)
p
*
PQ⋅
en 0
For the lubricant flow rate parameter at the exit of the lubricant gap, see Formula (8):
Q
*
Q = (8)
Q
For non-dimensional difference between maximum temperature of lubricant film and lubricant
temperature in the lubricant pocket, see Formula (9):
ρψ⋅⋅c
peff
*
ΔΔT = · T (9)
max max
pf⋅
b) Dynamic characteristic values
For non-dimensional lubricant film stiffness coefficients, see Formula (10):
ψ
* eff
c = ⋅c (i, k = 1, 2) (10)
ik, ik,
2⋅⋅B ηω⋅
eff
For non-dimensional lubricant film damping coefficients, see Formula (11):
ψ
* eff
d = ⋅⋅ω d (i, k = 1, 2) (11)
ik, ik,
2⋅⋅B ηω⋅
eff
*
For some selected tilting-pad journal bearings (Ω = 0,6, Ω = 45°, ϕ = 36°), these characteristic
F F,1
values are shown graphically as a function of the Sommerfeld number, So, and the profile factor, K in
P
Annex A, Figures A.1 to A.11.
Figure 1 — Geometrical parameters of selected tilting-pad journal bearings
* *
(ΩΩ = 0,5 andΩΩ = 0,6)
F F
4.2 Tilting-pad journal bearings with four tilting pads
The characteristic values for tilting-pad journal bearings with four centrally or eccentrically supported
tilting pads and angular spans of pad sliding surface of Ω = 80° or 60° are given in Tables 1 to 34.
Table 1 — Characteristic values of a tilting-pad bearing
*
with four centrally (ΩΩ = 0,5) supported tilting pads (Ω = 80°, φ = 45°, K = 2, B* = 0,5)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,278 0,829 2,785 0,909 0,000 1,730 1,02 0,283 0,000 0,000 0,283 0,335 0,000 0,000 0,335
0,021 0,050 0,00 0,308 0,796 2,789 0,909 0,000 1,730 1,10 0,286 0,000 0,000 0,286 0,337 0,000 0,000 0,337
0,042 0,100 0,00 0,342 0,763 2,800 0,907 0,000 1,730 1,18 0,295 0,000 0,000 0,295 0,342 0,000 0,000 0,342
0,086 0,200 0,00 0,426 0,698 2,846 0,902 0,000 1,732 1,36 0,330 0,000 0,000 0,330 0,362 0,000 0,000 0,362
0,136 0,300 0,00 0,539 0,632 2,925 0,893 0,000 1,735 1,58 0,397 0,000 0,000 0,397 0,399 0,000 0,000 0,399
0,197 0,400 0,00 0,692 0,567 3,043 0,881 0,000 1,739 1,84 0,505 0,000 0,000 0,505 0,456 0,000 0,000 0,456
0,273 0,500 0,00 0,907 0,503 3,210 0,863 0,000 1,744 2,15 0,678 0,000 0,000 0,678 0,546 0,000 0,000 0,546
0,374 0,600 0,00 1,216 0,440 3,436 0,841 0,000 1,752 2,51 0,954 0,000 0,000 0,954 0,686 0,000 0,000 0,686
0,512 0,700 0,00 1,674 0,378 3,741 0,812 0,000 1,760 2,93 1,403 0,000 0,000 1,403 0,905 0,000 0,000 0,905
0,713 0,800 0,00 2,392 0,317 4,157 0,776 0,000 1,773 3,51 2,167 0,000 0,000 2,167 1,253 0,000 0,000 1,253
1,023 0,900 0,00 3,587 0,259 4,735 0,732 0,000 1,788 4,34 3,562 0,000 0,000 3,562 1,841 0,000 0,000 1,841
1,245 0,950 0,00 4,501 0,230 5,111 0,707 0,000 1,796 4,88 4,707 0,000 0,000 4,707 2,299 0,000 0,000 2,299
1,541 1,000 0,00 5,768 0,202 5,568 0,679 0,000 1,806 5,65 6,389 0,000 0,000 6,389 2,931 0,000 0,000 2,931
1,943 1,050 0,00 7,584 0,174 6,134 0,648 0,000 1,816 6,49 8,951 0,000 0,000 8,951 3,848 0,000 0,000 3,848
2,512 1,100 0,00 10,311 0,147 6,850 0,613 0,000 1,829 7,76 13,077 0,000 0,000 13,077 5,241 0,000 0,000 5,241
3,358 1,150 0,00 14,651 0,121 7,787 0,575 0,000 1,842 9,64 20,191 0,000 0,000 20,191 7,500 0,000 0,000 7,500
4,708 1,200 0,00 22,167 0,095 9,074 0,532 0,000 1,857 12,41 33,852 0,000 0,000 33,852 11,308 0,000 0,000 11,308
7,086 1,250 0,00 36,774 0,070 10,962 0,482 0,000 1,874 16,96 63,748 0,000 0,000 63,748 19,069 0,000 0,000 19,069
12,031 1,300 0,00 71,724 0,046 14,101 0,422 0,000 1,895 26,41 148,095 0,000 0,000 148,095 37,650 0,000 0,000 37,650
26,371 1,350 0,00 197,100 0,024 20,706 0,346 0,000 1,923 51,75 535,824 0,000 0,000 535,824 107,479 0,000 0,000 107,478
58,756 1,380 0,00 571,372 0,012 31,042 0,284 0,000 1,945 109,29 2 141,057 0,000 0,000 2 141,055 306,671 0,000 0,000 306,670
Table 2 — Characteristic values of a tilting-pad bearing
*
with four eccentrically (ΩΩ = 0,6) supported tilting pads (Ω = 80°, φ = 45°, K = 2, B* = 0,5)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,443 0,664 2,789 1,572 0,000 1,542 1,07 0,473 0,000 0,000 0,473 0,459 0,000 0,000 0,459
0,025 0,050 0,00 0,481 0,643 2,792 1,572 0,000 1,542 1,14 0,477 0,000 0,000 0,477 0,461 0,000 0,000 0,461
0,051 0,100 0,00 0,522 0,622 2,803 1,570 0,000 1,544 1,23 0,486 0,000 0,000 0,486 0,468 0,000 0,000 0,468
0,106 0,200 0,00 0,623 0,582 2,844 1,567 0,000 1,545 1,42 0,528 0,000 0,000 0,528 0,496 0,000 0,000 0,496
0,166 0,300 0,00 0,752 0,540 2,916 1,561 0,000 1,546 1,64 0,605 0,000 0,000 0,605 0,545 0,000 0,000 0,545
0,234 0,400 0,00 0,925 0,496 3,016 1,544 0,000 1,553 1,91 0,728 0,000 0,000 0,728 0,621 0,000 0,000 0,621
0,320 0,500 0,00 1,159 0,450 3,164 1,533 0,000 1,556 2,25 0,920 0,000 0,000 0,920 0,735 0,000 0,000 0,735
0,440 0,600 0,00 1,491 0,402 3,381 1,527 0,000 1,556 2,65 1,222 0,000 0,000 1,222 0,902 0,000 0,000 0,902
0,595 0,700 0,00 1,982 0,352 3,666 1,512 0,000 1,560 3,14 1,707 0,000 0,000 1,707 1,150 0,000 0,000 1,150
0,819 0,800 0,00 2,751 0,300 4,066 1,494 0,000 1,564 3,77 2,533 0,000 0,000 2,533 1,529 0,000 0,000 1,529
1,164 0,900 0,00 4,056 0,246 4,649 1,474 0,000 1,567 4,81 4,052 0,000 0,000 4,052 2,134 0,000 0,000 2,134
1,412 0,950 0,00 5,059 0,219 5,042 1,463 0,000 1,568 5,45 5,296 0,000 0,000 5,296 2,623 0,000 0,000 2,623
1,737 1,000 0,00 6,449 0,192 5,527 1,449 0,000 1,571 6,18 7,103 0,000 0,000 7,103 3,316 0,000 0,000 3,316
2,175 1,050 0,00 8,424 0,166 6,132 1,434 0,000 1,573 7,14 9,848 0,000 0,000 9,848 4,311 0,000 0,000 4,311
2,791 1,100 0,00 11,376 0,140 6,905 1,416 0,000 1,576 8,33 14,237 0,000 0,000 14,237 5,801 0,000 0,000 5,801
3,700 1,150 0,00 16,040 0,115 7,920 1,395 0,000 1,580 10,23 21,778 0,000 0,000 21,778 8,167 0,000 0,000 8,167
5,133 1,200 0,00 24,049 0,091 9,305 1,372 0,000 1,583 13,00 36,003 0,000 0,000 36,003 12,305 0,000 0,000 12,305
7,634 1,250 0,00 39,539 0,067 11,327 1,343 0,000 1,588 17,56 67,340 0,000 0,000 67,340 20,207 0,000 0,000 20,207
12,774 1,300 0,00 76,100 0,045 14,616 1,308 0,000 1,594 27,05 154,291 0,000 0,000 154,291 39,597 0,000 0,000 39,597
27,474 1,350 0,00 205,321 0,024 21,403 1,264 0,000 1,601 52,69 555,053 0,000 0,000 555,052 109,234 0,000 0,000 109,234
60,147 1,380 0,00 584,387 0,012 31,725 1,228 0,000 1,607 107,13 2 152,788 0,000 0,000 2 152,785 321,212 0,000 0,000 321,212
Table 3 — Characteristic values of a tilting-pad bearing
*
with four centrally (ΩΩ = 0,5) supported tilting pads (Ω = 80°, φ = 45°, K = 3, B* = 0,5)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,373 0,782 2,821 1,349 0,000 1,664 1,02 0,342 0,000 0,000 0,342 0,257 0,000 0,000 0,257
0,021 0,050 0,00 0,409 0,750 2,825 1,349 0,000 1,664 1,10 0,344 0,000 0,000 0,344 0,258 0,000 0,000 0,258
0,043 0,100 0,00 0,450 0,718 2,836 1,347 0,000 1,664 1,17 0,353 0,000 0,000 0,353 0,262 0,000 0,000 0,262
0,088 0,200 0,00 0,548 0,655 2,881 1,342 0,000 1,666 1,35 0,388 0,000 0,000 0,388 0,279 0,000 0,000 0,279
0,139 0,300 0,00 0,677 0,593 2,958 1,332 0,000 1,668 1,54 0,452 0,000 0,000 0,452 0,309 0,000 0,000 0,309
0,198 0,400 0,00 0,848 0,532 3,072 1,320 0,000 1,671 1,76 0,554 0,000 0,000 0,554 0,355 0,000 0,000 0,355
0,270 0,500 0,00 1,082 0,472 3,229 1,303 0,000 1,675 2,04 0,711 0,000 0,000 0,711 0,424 0,000 0,000 0,424
0,363 0,600 0,00 1,411 0,413 3,439 1,283 0,000 1,680 2,40 0,954 0,000 0,000 0,954 0,525 0,000 0,000 0,525
0,487 0,700 0,00 1,892 0,355 3,719 1,258 0,000 1,686 2,86 1,341 0,000 0,000 1,341 0,679 0,000 0,000 0,679
0,664 0,800 0,00 2,627 0,299 4,093 1,229 0,000 1,693 3,45 1,983 0,000 0,000 1,983 0,921 0,000 0,000 0,921
0,929 0,900 0,00 3,826 0,244 4,603 1,195 0,000 1,701 4,32 3,128 0,000 0,000 3,128 1,324 0,000 0,000 1,324
1,116 0,950 0,00 4,729 0,217 4,932 1,176 0,000 1,706 4,96 4,054 0,000 0,000 4,054 1,625 0,000 0,000 1,625
1,359 1,000 0,00 5,960 0,190 5,328 1,155 0,000 1,711 5,69 5,385 0,000 0,000 5,385 2,052 0,000 0,000 2,052
1,686 1,050 0,00 7,703 0,164 5,814 1,133 0,000 1,716 6,67 7,390 0,000 0,000 7,390 2,658 0,000 0,000 2,658
2,141 1,100 0,00 10,283 0,139 6,428 1,108 0,000 1,722 8,03 10,579 0,000 0,000 10,579 3,553 0,000 0,000 3,553
2,808 1,150 0,00 14,332 0,114 7,230 1,081 0,000 1,729 10,02 16,050 0,000 0,000 16,050 4,930 0,000 0,000 4,930
3,851 1,200 0,00 21,191 0,090 8,323 1,051 0,000 1,737 13,13 26,193 0,000 0,000 26,193 7,403 0,000 0,000 7,403
5,655 1,250 0,00 34,402 0,066 9,932 1,017 0,000 1,745 18,22 48,319 0,000 0,000 48,319 12,108 0,000 0,000 12,108
9,329 1,300 0,00 65,317 0,044 12,599 0,979 0,000 1,754 28,06 109,751 0,000 0,000 109,751 23,143 0,000 0,000 23,143
19,717 1,350 0,00 174,369 0,023 18,175 0,933 0,000 1,764 54,67 386,812 0,000 0,000 386,812 63,618 0,000 0,000 63,617
42,609 1,380 0,00 493,091 0,012 26,726 0,896 0,000 1,772 110,73 1 476,149 0,000 0,000 1 476,147 185,825 0,000 0,000 185,825
Table 4 — Characteristic values of a tilting-pad bearing
*
with four eccentrically (ΩΩ = 0,6) supported tilting pads (Ω = 80°, φ = 45°, K = 3, B* = 0,5)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,482 0,695 2,767 2,044 0,000 1,530 1,07 0,448 0,000 0,000 0,448 0,345 0,000 0,000 0,345
0,024 0,050 0,00 0,521 0,671 2,770 2,044 0,000 1,530 1,15 0,450 0,000 0,000 0,450 0,347 0,000 0,000 0,347
0,049 0,100 0,00 0,565 0,648 2,780 2,043 0,000 1,530 1,24 0,459 0,000 0,000 0,459 0,351 0,000 0,000 0,351
0,100 0,200 0,00 0,671 0,599 2,822 2,041 0,000 1,530 1,43 0,497 0,000 0,000 0,497 0,370 0,000 0,000 0,370
0,157 0,300 0,00 0,809 0,549 2,895 2,037 0,000 1,530 1,66 0,564 0,000 0,000 0,564 0,402 0,000 0,000 0,402
0,223 0,400 0,00 0,993 0,498 3,004 2,032 0,000 1,531 1,90 0,673 0,000 0,000 0,673 0,451 0,000 0,000 0,451
0,304 0,500 0,00 1,243 0,446 3,158 2,025 0,000 1,530 2,19 0,841 0,000 0,000 0,841 0,523 0,000 0,000 0,523
0,408 0,600 0,00 1,603 0,392 3,371 2,018 0,000 1,529 2,63 1,105 0,000 0,000 1,105 0,626 0,000 0,000 0,626
0,547 0,700 0,00 2,130 0,338 3,664 2,009 0,000 1,528 3,16 1,524 0,000 0,000 1,524 0,786 0,000 0,000 0,786
0,742 0,800 0,00 2,937 0,284 4,063 1,995 0,000 1,528 3,83 2,215 0,000 0,000 2,215 1,048 0,000 0,000 1,048
1,031 0,900 0,00 4,239 0,232 4,614 1,975 0,000 1,528 4,74 3,438 0,000 0,000 3,438 1,482 0,000 0,000 1,482
1,233 0,950 0,00 5,214 0,207 4,970 1,962 0,000 1,529 5,32 4,420 0,000 0,000 4,420 1,805 0,000 0,000 1,805
1,495 1,000 0,00 6,535 0,182 5,400 1,949 0,000 1,530 6,06 5,828 0,000 0,000 5,828 2,256 0,000 0,000 2,256
1,844 1,050 0,00 8,399 0,157 5,927 1,932 0,000 1,531 7,05 7,933 0,000 0,000 7,933 2,902 0,000 0,000 2,902
2,327 1,100 0,00 11,149 0,133 6,589 1,914 0,000 1,533 8,41 11,266 0,000 0,000 11,266 3,846 0,000 0,000 3,846
3,029 1,150 0,00 15,432 0,109 7,446 1,892 0,000 1,535 10,41 16,930 0,000 0,000 16,930 5,320 0,000 0,000 5,320
4,119 1,200 0,00 22,653 0,086 8,603 1,867 0,000 1,538 13,28 27,451 0,000 0,000 27,451 7,877 0,000 0,000 7,876
5,988 1,250 0,00 36,430 0,064 10,283 1,837 0,000 1,541 18,27 50,254 0,000 0,000 50,254 12,726 0,000 0,000 12,726
9,759 1,300 0,00 68,399 0,043 13,015 1,801 0,000 1,545 27,87 112,309 0,000 0,000 112,309 24,491 0,000 0,000 24,491
20,316 1,350 0,00 179,949 0,023 18,692 1,755 0,000 1,550 55,61 397,952 0,000 0,000 397,952 64,243 0,000 0,000 64,243
43,289 1,380 0,00 498,175 0,012 27,286 1,715 0,000 1,555 112,94 1 521,926 0,000 0,000 1 521,923 182,322 0,000 0,000 182,322
Table 5 — Characteristic values of a tilting-pad bearing
*
with four centrally (ΩΩ = 0,5) supported tilting pads (Ω = 80°, φ = 45°, K = 5, B* = 0,5)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,463 0,722 2,837 2,019 0,000 1,582 0,97 0,348 0,000 0,000 0,348 0,184 0,000 0,000 0,184
0,019 0,050 0,00 0,502 0,693 2,840 2,018 0,000 1,582 1,03 0,350 0,000 0,000 0,350 0,186 0,000 0,000 0,186
0,039 0,100 0,00 0,546 0,663 2,849 2,017 0,000 1,582 1,12 0,357 0,000 0,000 0,357 0,188 0,000 0,000 0,188
0,079 0,200 0,00 0,652 0,606 2,887 2,012 0,000 1,584 1,27 0,384 0,000 0,000 0,384 0,198 0,000 0,000 0,198
0,124 0,300 0,00 0,787 0,549 2,952 2,003 0,000 1,586 1,48 0,435 0,000 0,000 0,435 0,216 0,000 0,000 0,216
0,175 0,400 0,00 0,965 0,493 3,047 1,990 0,000 1,589 1,70 0,515 0,000 0,000 0,515 0,245 0,000 0,000 0,245
0,236 0,500 0,00 1,204 0,437 3,177 1,974 0,000 1,593 2,02 0,638 0,000 0,000 0,638 0,287 0,000 0,000 0,287
0,313 0,600 0,00 1,532 0,383 3,350 1,953 0,000 1,597 2,39 0,825 0,000 0,000 0,825 0,349 0,000 0,000 0,349
0,414 0,700 0,00 2,004 0,329 3,580 1,928 0,000 1,603 2,88 1,117 0,000 0,000 1,117 0,441 0,000 0,000 0,441
0,552 0,800 0,00 2,710 0,277 3,885 1,898 0,000 1,610 3,56 1,592 0,000 0,000 1,592 0,584 0,000 0,000 0,584
0,755 0,900 0,00 3,835 0,226 4,300 1,863 0,000 1,618 4,50 2,423 0,000 0,000 2,423 0,816 0,000 0,000 0,816
0,895 0,950 0,00 4,666 0,201 4,567 1,843 0,000 1,623 5,19 3,085 0,000 0,000 3,085 0,988 0,000 0,000 0,988
1,075 1,000 0,00 5,785 0,177 4,888 1,822 0,000 1,628 5,97 4,025 0,000 0,000 4,025 1,228 0,000 0,000 1,228
1,313 1,050 0,00 7,356 0,153 5,286 1,799 0,000 1,634 7,14 5,441 0,000 0,000 5,441 1,549 0,000 0,000 1,549
1,639 1,100 0,00 9,647 0,129 5,783 1,773 0,000 1,640 8,59 7,634 0,000 0,000 7,634 2,043 0,000 0,000 2,043
2,110 1,150 0,00 13,188 0,106 6,433 1,746 0,000 1,646 10,68 11,328 0,000 0,000 11,328 2,807 0,000 0,000 2,807
2,833 1,200 0,00 19,100 0,084 7,323 1,715 0,000 1,653 13,92 18,208 0,000 0,000 18,208 4,077 0,000 0,000 4,077
4,063 1,250 0,00 30,378 0,062 8,632 1,679 0,000 1,661 19,50 32,932 0,000 0,000 32,932 6,504 0,000 0,000 6,504
6,516 1,300 0,00 56,299 0,041 10,786 1,639 0,000 1,669 30,08 73,179 0,000 0,000 73,179 12,099 0,000 0,000 12,099
12,626 1,350 0,00 146,038 0,022 14,877 1,584 0,000 1,680 59,35 246,790 0,000 0,000 246,790 32,334 0,000 0,000 32,334
27,843 1,380 0,00 402,270 0,011 21,987 1,547 0,000 1,686 116,92 941,968 0,000 0,000 941,967 90,403 0,000 0,000 90,403
Table 6 — Characteristic values of a tilting-pad bearing
*
with four eccentrically (ΩΩ = 0,6) supported tilting pads (Ω = 80°, φ = 45°, K = 5, B* = 0,5)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,527 0,684 2,755 2,901 0,000 1,505 1,06 0,395 0,000 0,000 0,395 0,219 0,000 0,000 0,219
0,021 0,050 0,00 0,570 0,657 2,758 2,901 0,000 1,505 1,14 0,398 0,000 0,000 0,398 0,219 0,000 0,000 0,219
0,043 0,100 0,00 0,618 0,630 2,769 2,901 0,000 1,505 1,23 0,405 0,000 0,000 0,405 0,222 0,000 0,000 0,222
0,088 0,200 0,00 0,734 0,576 2,813 2,899 0,000 1,503 1,42 0,435 0,000 0,000 0,435 0,233 0,000 0,000 0,233
0,137 0,300 0,00 0,884 0,522 2,887 2,896 0,000 1,502 1,64 0,490 0,000 0,000 0,490 0,253 0,000 0,000 0,253
0,193 0,400 0,00 1,078 0,469 2,995 2,889 0,000 1,500 1,91 0,577 0,000 0,000 0,577 0,282 0,000 0,000 0,282
0,260 0,500 0,00 1,337 0,417 3,141 2,879 0,000 1,500 2,21 0,707 0,000 0,000 0,707 0,329 0,000 0,000 0,329
0,344 0,600 0,00 1,693 0,365 3,335 2,865 0,000 1,499 2,59 0,906 0,000 0,000 0,906 0,395 0,000 0,000 0,395
0,452 0,700 0,00 2,201 0,315 3,590 2,847 0,000 1,499 3,10 1,214 0,000 0,000 1,214 0,493 0,000 0,000 0,493
0,601 0,800 0,00 2,956 0,265 3,926 2,824 0,000 1,500 3,73 1,713 0,000 0,000 1,713 0,646 0,000 0,000 0,646
0,816 0,900 0,00 4,156 0,217 4,380 2,796 0,000 1,501 4,74 2,585 0,000 0,000 2,585 0,887 0,000 0,000 0,887
0,964 0,950 0,00 5,037 0,193 4,668 2,780 0,000 1,502 5,44 3,273 0,000 0,000 3,273 1,068 0,000 0,000 1,068
1,153 1,000 0,00 6,221 0,170 5,013 2,761 0,000 1,504 6,23 4,259 0,000 0,000 4,259 1,309 0,000 0,000 1,309
1,401 1,050 0,00 7,864 0,147 5,432 2,740 0,000 1,505 7,26 5,693 0,000 0,000 5,693 1,670 0,000 0,000 1,670
1,741 1,100 0,00 10,277 0,125 5,960 2,717 0,000 1,507 8,87 7,999 0,000 0,000 7,999 2,150 0,000 0,000 2,150
2,227 1,150 0,00 13,952 0,103 6,637 2,690 0,000 1,509 10,98 11,797 0,000 0,000 11,797 2,942 0,000 0,000 2,942
2,971 1,200 0,00 20,108 0,081 7,553 2,659 0,000 1,513 14,25 18,798 0,000 0,000 18,798 4,276 0,000 0,000 4,276
4,227 1,250 0,00 31,629 0,061 8,883 2,622 0,000 1,516 19,39 33,785 0,000 0,000 33,785 6,773 0,000 0,000 6,773
6,713 1,300 0,00 58,147 0,041 11,053 2,579 0,000 1,520 29,68 74,071 0,000 0,000 74,071 12,692 0,000 0,000 12,692
13,511 1,350 0,00 148,407 0,022 15,499 2,520 0,000 1,526 56,63 249,869 0,000 0,000 249,868 33,964 0,000 0,000 33,964
27,982 1,380 0,00 403,229 0,011 22,181 2,472 0,000 1,529 113,12 929,177 0,000 0,000 929,176 95,057 0,000 0,000 95,057
Table 7 — Characteristic values of a tilting-pad bearing
*
with four centrally (ΩΩ = 0,5) supported tilting pads (Ω = 80°, φ = 45°, K = 2, B* = 0,75)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,385 0,847 2,804 0,941 0,000 2,708 1,02 0,381 0,000 0,000 0,381 0,499 0,000 0,000 0,499
0,028 0,050 0,00 0,425 0,814 2,807 0,941 0,000 2,708 1,09 0,385 0,000 0,000 0,385 0,502 0,000 0,000 0,502
0,057 0,100 0,00 0,469 0,780 2,819 0,939 0,000 2,708 1,18 0,396 0,000 0,000 0,396 0,509 0,000 0,000 0,509
0,118 0,200 0,00 0,579 0,714 2,865 0,933 0,000 2,709 1,37 0,442 0,000 0,000 0,442 0,537 0,000 0,000 0,537
0,186 0,300 0,00 0,722 0,648 2,946 0,924 0,000 2,712 1,60 0,526 0,000 0,000 0,526 0,588 0,000 0,000 0,588
0,268 0,400 0,00 0,916 0,581 3,067 0,910 0,000 2,715 1,87 0,663 0,000 0,000 0,663 0,668 0,000 0,000 0,668
0,369 0,500 0,00 1,184 0,515 3,238 0,891 0,000 2,720 2,22 0,878 0,000 0,000 0,878 0,785 0,000 0,000 0,785
0,501 0,600 0,00 1,566 0,450 3,474 0,870 0,000 2,724 2,64 1,221 0,000 0,000 1,221 0,967 0,000 0,000 0,967
0,681 0,700 0,00 2,124 0,386 3,794 0,840 0,000 2,732 3,12 1,777 0,000 0,000 1,777 1,255 0,000 0,000 1,255
0,938 0,800 0,00 2,979 0,323 4,231 0,803 0,000 2,742 3,78 2,709 0,000 0,000 2,709 1,710 0,000 0,000 1,710
1,326 0,900 0,00 4,373 0,262 4,840 0,757 0,000 2,756 4,73 4,381 0,000 0,000 4,381 2,457 0,000 0,000 2,457
1,601 0,950 0,00 5,421 0,233 5,238 0,731 0,000 2,765 5,36 5,737 0,000 0,000 5,737 3,029 0,000 0,000 3,029
1,961 1,000 0,00 6,853 0,204 5,723 0,702 0,000 2,775 6,16 7,700 0,000 0,000 7,700 3,825 0,000 0,000 3,825
2,445 1,050 0,00 8,880 0,175 6,323 0,669 0,000 2,786 7,23 10,678 0,000 0,000 10,678 4,942 0,000 0,000 4,942
3,121 1,100 0,00 11,878 0,148 7,082 0,633 0,000 2,799 8,60 15,410 0,000 0,000 15,410 6,615 0,000 0,000 6,615
4,112 1,150 0,00 16,578 0,121 8,073 0,593 0,000 2,814 10,58 23,452 0,000 0,000 23,452 9,314 0,000 0,000 9,314
5,669 1,200 0,00 24,584 0,095 9,430 0,547 0,000 2,832 13,68 38,646 0,000 0,000 38,646 13,883 0,000 0,000 13,883
8,368 1,250 0,00 39,980 0,069 11,425 0,495 0,000 2,852 19,08 71,831 0,000 0,000 71,831 22,600 0,000 0,000 22,600
13,879 1,300 0,00 76,266 0,046 14,707 0,432 0,000 2,877 29,20 163,463 0,000 0,000 163,463 43,668 0,000 0,000 43,668
27,847 1,350 0,00 206,016 0,024 20,802 0,348 0,000 2,913 60,47 571,280 0,000 0,000 571,279 119,574 0,000 0,000 119,574
64,154 1,380 0,00 591,907 0,012 32,223 0,288 0,000 2,937 118,29 2 276,467 0,000 0,000 2 276,464 332,605 0,000 0,000 332,605
Table 8 — Characteristic values of a tilting-pad bearing
*
with four eccentrically (ΩΩ = 0,6) supported tilting pads (Ω = 80°, φ = 45°, K = 2, B* = 0,75)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,661 0,648 2,923 1,786 0,000 2,381 1,08 0,692 0,000 0,000 0,692 0,707 0,000 0,000 0,707
0,037 0,050 0,00 0,712 0,628 2,926 1,786 0,000 2,381 1,15 0,697 0,000 0,000 0,697 0,710 0,000 0,000 0,710
0,074 0,100 0,00 0,770 0,609 2,937 1,785 0,000 2,381 1,24 0,710 0,000 0,000 0,710 0,720 0,000 0,000 0,720
0,151 0,200 0,00 0,906 0,571 2,980 1,782 0,000 2,382 1,43 0,766 0,000 0,000 0,766 0,759 0,000 0,000 0,759
0,237 0,300 0,00 1,080 0,532 3,056 1,776 0,000 2,383 1,65 0,866 0,000 0,000 0,866 0,829 0,000 0,000 0,829
0,337 0,400 0,00 1,307 0,491 3,168 1,769 0,000 2,385 1,93 1,027 0,000 0,000 1,027 0,938 0,000 0,000 0,938
0,458 0,500 0,00 1,610 0,447 3,325 1,759 0,000 2,388 2,27 1,275 0,000 0,000 1,275 1,099 0,000 0,000 1,099
0,612 0,600 0,00 2,031 0,401 3,542 1,748 0,000 2,389 2,70 1,656 0,000 0,000 1,656 1,332 0,000 0,000 1,332
0,818 0,700 0,00 2,637 0,352 3,838 1,733 0,000 2,393 3,27 2,262 0,000 0,000 2,262 1,674 0,000 0,000 1,674
1,108 0,800 0,00 3,562 0,301 4,255 1,720 0,000 2,393 4,04 3,272 0,000 0,000 3,272 2,188 0,000 0,000 2,188
1,545 0,900 0,00 5,083 0,247 4,862 1,705 0,000 2,393 5,18 5,090 0,000 0,000 5,090 2,993 0,000 0,000 2,993
1,853 0,950 0,00 6,242 0,220 5,276 1,697 0,000 2,392 5,97 6,571 0,000 0,000 6,571 3,585 0,000 0,000 3,585
2,255 1,000 0,00 7,831 0,192 5,792 1,687 0,000 2,393 6,90 8,710 0,000 0,000 8,710 4,432 0,000 0,000 4,432
2,790 1,050 0,00 10,068 0,166 6,439 1,676 0,000 2,392 7,94 11,909 0,000 0,000 11,909 5,662 0,000 0,000 5,662
3,531 1,100 0,00 13,353 0,140 7,262 1,663 0,000 2,393 9,35 16,958 0,000 0,000 16,958 7,519 0,000 0,000 7,519
4,606 1,150 0,00 18,474 0,114 8,345 1,646 0,000 2,395 11,53 25,578 0,000 0,000 25,578 10,317 0,000 0,000 10,317
6,275 1,200 0,00 27,096 0,090 9,815 1,626 0,000 2,397 14,53 41,556 0,000 0,000 41,556 15,222 0,000 0,000 15,222
9,135 1,250 0,00 43,577 0,066 11,950 1,603 0,000 2,402 19,67 76,082 0,000 0,000 76,082 24,607 0,000 0,000 24,607
14,906 1,300 0,00 82,024 0,044 15,415 1,573 0,000 2,408 30,21 171,864 0,000 0,000 171,864 46,049 0,000 0,000 46,049
31,027 1,350 0,00 216,670 0,023 22,470 1,533 0,000 2,416 58,12 600,817 0,000 0,000 600,817 123,854 0,000 0,000 123,854
66,119 1,380 0,00 607,444 0,012 33,113 1,500 0,000 2,423 116,32 2 281,786 0,000 0,000 2 281,783 354,580 0,000 0,000 354,580
Table 9 — Characteristic values of a tilting-pad bearing
*
with four centrally (ΩΩ = 0,5) supported tilting pads (Ω = 80°, φ = 45°, K = 3, B* = 0,75)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,488 0,801 2,852 1,374 0,000 2,621 1,05 0,442 0,000 0,000 0,442 0,368 0,000 0,000 0,368
0,028 0,050 0,00 0,533 0,768 2,856 1,374 0,000 2,621 1,13 0,446 0,000 0,000 0,446 0,369 0,000 0,000 0,369
0,057 0,100 0,00 0,584 0,735 2,867 1,373 0,000 2,621 1,22 0,456 0,000 0,000 0,456 0,374 0,000 0,000 0,374
0,117 0,200 0,00 0,706 0,670 2,916 1,369 0,000 2,621 1,42 0,500 0,000 0,000 0,500 0,395 0,000 0,000 0,395
0,182 0,300 0,00 0,862 0,606 2,998 1,360 0,000 2,622 1,63 0,579 0,000 0,000 0,579 0,434 0,000 0,000 0,434
0,259 0,400 0,00 1,069 0,543 3,119 1,349 0,000 2,624 1,88 0,703 0,000 0,000 0,703 0,493 0,000 0,000 0,493
0,351 0,500 0,00 1,347 0,480 3,285 1,333 0,000 2,627 2,20 0,893 0,000 0,000 0,893 0,581 0,000 0,000 0,581
0,468 0,600 0,00 1,732 0,420 3,509 1,314 0,000 2,631 2,60 1,185 0,000 0,000 1,185 0,711 0,000 0,000 0,711
0,623 0,700 0,00 2,286 0,360 3,805 1,290 0,000 2,636 3,10 1,642 0,000 0,000 1,642 0,906 0,000 0,000 0,906
0,839 0,800 0,00 3,118 0,302 4,202 1,261 0,000 2,643 3,82 2,395 0,000 0,000 2,395 1,204 0,000 0,000 1,204
1,157 0,900 0,00 4,450 0,245 4,744 1,226 0,000 2,652 4,83 3,715 0,000 0,000 3,715 1,698 0,000 0,000 1,698
1,379 0,950 0,00 5,438 0,217 5,093 1,207 0,000 2,657 5,49 4,775 0,000 0,000 4,775 2,058 0,000 0,000 2,058
1,665 1,000 0,00 6,774 0,190 5,513 1,186 0,000 2,663 6,34 6,287 0,000 0,000 6,287 2,560 0,000 0,000 2,560
2,045 1,050 0,00 8,648 0,164 6,029 1,163 0,000 2,670 7,47 8,546 0,000 0,000 8,546 3,269 0,000 0,000 3,269
2,570 1,100 0,00 11,400 0,138 6,679 1,138 0,000 2,678 9,02 12,118 0,000 0,000 12,118 4,297 0,000 0,000 4,297
3,327 1,150 0,00 15,642 0,113 7,519 1,110 0,000 2,688 11,27 18,080 0,000 0,000 18,080 5,969 0,000 0,000 5,969
4,499 1,200 0,00 22,806 0,089 8,670 1,080 0,000 2,697 14,54 29,308 0,000 0,000 29,308 8,671 0,000 0,000 8,671
6,502 1,250 0,00 36,531 0,065 10,356 1,047 0,000 2,709 20,14 53,444 0,000 0,000 53,443 13,870 0,000 0,000 13,870
10,520 1,300 0,00 68,304 0,043 13,122 1,006 0,000 2,724 30,85 119,034 0,000 0,000 119,034 26,251 0,000 0,000 26,251
21,695 1,350 0,00 180,297 0,023 18,876 0,960 0,000 2,739 59,48 410,984 0,000 0,000 410,983 70,480 0,000 0,000 70,480
45,929 1,380 0,00 508,104 0,012 27,648 0,923 0,000 2,751 119,09 1 546,670 0,000 0,000 1 546,668 200,689 0,000 0,000 200,688
Table 10 — Characteristic values of a tilting-pad bearing
*
with four eccentrically (ΩΩ = 0,6) supported tilting pads (Ω = 80°, φ = 45°, K = 3, B* = 0,75)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,673 0,690 2,901 2,225 0,000 2,373 1,09 0,614 0,000 0,000 0,614 0,513 0,000 0,000 0,513
0,033 0,050 0,00 0,723 0,668 2,905 2,225 0,000 2,373 1,17 0,618 0,000 0,000 0,618 0,515 0,000 0,000 0,515
0,066 0,100 0,00 0,779 0,645 2,916 2,224 0,000 2,373 1,25 0,629 0,000 0,000 0,629 0,521 0,000 0,000 0,521
0,135 0,200 0,00 0,913 0,598 2,959 2,222 0,000 2,373 1,45 0,675 0,000 0,000 0,675 0,545 0,000 0,000 0,545
0,211 0,300 0,00 1,084 0,549 3,035 2,219 0,000 2,372 1,69 0,758 0,000 0,000 0,758 0,589 0,000 0,000 0,589
0,299 0,400 0,00 1,307 0,499 3,148 2,215 0,000 2,371 1,98 0,890 0,000 0,000 0,890 0,656 0,000 0,000 0,656
0,404 0,500 0,00 1,608 0,447 3,308 2,210 0,000 2,369 2,35 1,094 0,000 0,000 1,094 0,753 0,000 0,000 0,753
0,536 0,600 0,00 2,027 0,394 3,529 2,205 0,000 2,366 2,82 1,408 0,000 0,000 1,408 0,889 0,000 0,000 0,889
0,711 0,700 0,00 2,637 0,339 3,836 2,200 0,000 2,361 3,45 1,906 0,000 0,000 1,906 1,089 0,000 0,000 1,089
0,953 0,800 0,00 3,561 0,285 4,261 2,191 0,000 2,356 4,23 2,722 0,000 0,000 2,722 1,408 0,000 0,000 1,408
1,306 0,900 0,00 5,029 0,232 4,850 2,178 0,000 2,352 5,28 4,145 0,000 0,000 4,145 1,937 0,000 0,000 1,937
1,548 0,950 0,00 6,108 0,206 5,229 2,168 0,000 2,351 5,97 5,271 0,000 0,000 5,271 2,336 0,000 0,000 2,336
1,859 1,000 0,00 7,562 0,181 5,687 2,157 0,000 2,351 6,84 6,875 0,000 0,000 6,875 2,881 0,000 0,000 2,881
2,269 1,050 0,00 9,589 0,156 6,249 2,144 0,000 2,352 7,99 9,270 0,000 0,000 9,270 3,630 0,000 0,000 3,630
2,830 1,100 0,00 12,543 0,131 6,953 2,128 0,000 2,353 9,56 13,018 0,000 0,000 13,018 4,734 0,000 0,000 4,734
3,402 1,150 0,00 17,104 0,108 7,648 2,097 0,000 2,364 11,98 18,993 0,000 0,000 18,993 6,558 0,000 0,000 6,558
4,870 1,200 0,00 24,720 0,085 9,081 2,087 0,000 2,358 15,15 30,952 0,000 0,000 30,952 9,330 0,000 0,000 9,330
6,958 1,250 0,00 39,166 0,063 10,839 2,061 0,000 2,362 20,41 55,641 0,000 0,000 55,641 14,912 0,000 0,000 14,912
11,115 1,300 0,00 72,572 0,042 13,709 2,025 0,000 2,371 31,65 123,936 0,000 0,000 123,936 27,261 0,000 0,000 27,261
22,521 1,350 0,00 188,622 0,022 19,565 1,982 0,000 2,378 60,71 426,837 0,000 0,000 426,837 70,842 0,000 0,000 70,842
46,919 1,380 0,00 520,121 0,011 28,382 1,945 0,000 2,384 121,42 1 606,162 0,000 0,000 1 606,160 196,233 0,000 0,000 196,233
Table 11 — Characteristic values of a tilting-pad bearing
*
with four centrally (ΩΩ = 0,5) supported tilting pads (Ω = 80°, φ = 45°, K = 5, B* = 0,75)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,570 0,734 2,906 2,048 0,000 2,477 1,04 0,431 0,000 0,000 0,431 0,247 0,000 0,000 0,247
0,024 0,050 0,00 0,616 0,704 2,909 2,047 0,000 2,477 1,12 0,434 0,000 0,000 0,434 0,250 0,000 0,000 0,250
0,048 0,100 0,00 0,668 0,673 2,919 2,046 0,000 2,478 1,20 0,441 0,000 0,000 0,441 0,252 0,000 0,000 0,252
0,099 0,200 0,00 0,789 0,614 2,959 2,040 0,000 2,480 1,39 0,474 0,000 0,000 0,474 0,265 0,000 0,000 0,265
0,154 0,300 0,00 0,944 0,555 3,028 2,030 0,000 2,483 1,60 0,533 0,000 0,000 0,533 0,287 0,000 0,000 0,287
0,217 0,400 0,00 1,144 0,497 3,129 2,017 0,000 2,488 1,89 0,625 0,000 0,000 0,625 0,322 0,000 0,000 0,322
0,291 0,500 0,00 1,409 0,440 3,268 2,000 0,000 2,494 2,22 0,766 0,000 0,000 0,766 0,373 0,000 0,000 0,373
0,383 0,600 0,00 1,772 0,385 3,452 1,978 0,000 2,503 2,64 0,979 0,000 0,000 0,979 0,448 0,000 0,000 0,448
0,503 0,700 0,00 2,285 0,330 3,697 1,952 0,000 2,512 3,20 1,312 0,000 0,000 1,312 0,555 0,000 0,000 0,555
0,665 0,800 0,00 3,044 0,277 4,020 1,921 0,000 2,524 3,93 1,845 0,000 0,000 1,845 0,726 0,000 0,000 0,726
0,899 0,900 0,00 4,240 0,225 4,459 1,885 0,000 2,537 5,05 2,772 0,000 0,000 2,772 0,995 0,000 0,000 0,995
1,058 0,950 0,00 5,117 0,200 4,740 1,865 0,000 2,545 5,75 3,503 0,000 0,000 3,503 1,193 0,000 0,000 1,193
1,262 1,000 0,00 6,295 0,175 5,081 1,843 0,000 2,554 6,74 4,549 0,000 0,000 4,549 1,455 0,000 0,000 1,455
1,530 1,050 0,00 7,924 0,151 5,495 1,819 0,000 2,563 7,92 6,083 0,000 0,000 6,083 1,836 0,000 0,000 1,836
1,894 1,100 0,00 10,307 0,128 6,017 1,794 0,000 2,572 9,52 8,472 0,000 0,000 8,472 2,391 0,000 0,000 2,391
2,414 1,150 0,00 13,975 0,105 6,696 1,765 0,000 2,583 11,82 12,458 0,000 0,000 12,458 3,251 0,000 0,000 3,251
3,207 1,200 0,00 20,076 0,083 7,621 1,734 0,000 2,594 15,36 19,831 0,000 0,000 19,831 4,665 0,000 0,000 4,665
4,544 1,250 0,00 31,709 0,061 8,982 1,699 0,000 2,607 21,40 35,685 0,000 0,000 35,685 7,257 0,000 0,000 7,257
7,181 1,300 0,00 58,325 0,041 11,207 1,658 0,000 2,622 32,77 78,327 0,000 0,000 78,327 13,310 0,000 0,000 13,310
13,701 1,350 0,00 150,300 0,022 15,419 1,604 0,000 2,640 63,81 259,765 0,000 0,000 259,765 34,984 0,000 0,000 34,984
29,605 1,380 0,00 413,457 0,011 22,668 1,567 0,000 2,649 124,66 982,821 0,000 0,000 982,820 95,286 0,000 0,000 95,286
Table 12 — Characteristic values of a tilting-pad bearing
*
with four eccentrically (ΩΩ = 0,6) supported tilting pads (Ω = 80°, φ = 45°, K = 5, B* = 0,75)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,672 0,687 2,883 3,034 0,000 2,339 1,14 0,501 0,000 0,000 0,501 0,309 0,000 0,000 0,309
0,027 0,050 0,00 0,722 0,661 2,887 3,034 0,000 2,339 1,23 0,504 0,000 0,000 0,504 0,310 0,000 0,000 0,310
0,054 0,100 0,00 0,778 0,634 2,898 3,035 0,000 2,337 1,33 0,513 0,000 0,000 0,513 0,312 0,000 0,000 0,312
0,111 0,200 0,00 0,912 0,579 2,944 3,035 0,000 2,335 1,55 0,549 0,000 0,000 0,549 0,324 0,000 0,000 0,324
0,172 0,300 0,00 1,083 0,524 3,024 3,035 0,000 2,331 1,82 0,613 0,000 0,000 0,613 0,347 0,000 0,000 0,347
0,242 0,400 0,00 1,305 0,470 3,140 3,033 0,000 2,327 2,11 0,714 0,000 0,000 0,714 0,384 0,000 0,000 0,384
0,325 0,500 0,00 1,598 0,416 3,298 3,028 0,000 2,322 2,46 0,864 0,000 0,000 0,864 0,439 0,000 0,000 0,439
0,426 0,600 0,00 1,996 0,364 3,507 3,018 0,000 2,319 2,90 1,093 0,000 0,000 1,093 0,518 0,000 0,000 0,518
0,556 0,700 0,00 2,556 0,313 3,780 3,005 0,000 2,319 3,49 1,446 0,000 0,000 1,446 0,634 0,000 0,000 0,634
0,732 0,800 0,00 3,378 0,263 4,138 2,986 0,000 2,319 4,23 2,011 0,000 0,000 2,011 0,816 0,000 0,000 0,816
0,982 0,900 0,00 4,666 0,214 4,620 2,962 0,000 2,320 5,38 2,987 0,000 0,000 2,987 1,099 0,000 0,000 1,099
1,153 0,950 0,00 5,609 0,191 4,925 2,948 0,000 2,321 6,09 3,756 0,000 0,000 3,756 1,305 0,000 0,000 1,305
1,368 1,000 0,00 6,866 0,167 5,290 2,932 0,000 2,324 7,09 4,840 0,000 0,000 4,840 1,590 0,000 0,000 1,590
1,650 1,050 0,00 8,598 0,145 5,733 2,913 0,000 2,326 8,29 6,444 0,000 0,000 6,444 1,979 0,000 0,000 1,979
2,032 1,100 0,00 11,120 0,122 6,285 2,892 0,000 2,329 9,92 8,939 0,000 0,000 8,939 2,546 0,000 0,000 2,546
2,573 1,150 0,00 14,980 0,101 6,993 2,867 0,000 2,334 12,24 13,069 0,000 0,000 13,069 3,431 0,000 0,000 3,431
3,395 1,200 0,00 21,387 0,080 7,955 2,838 0,000 2,339 15,83 20,746 0,000 0,000 20,746 4,852 0,000 0,000 4,852
4,766 1,250 0,00 33,416 0,059 9,333 2,804 0,000 2,345 21,42 36,665 0,000 0,000 36,665 7,672 0,000 0,000 7,672
7,451 1,300 0,00 60,882 0,040 11,573 2,762 0,000 2,352 32,47 79,379 0,000 0,000 79,379 14,112 0,000 0,000 14,112
14,693 1,350 0,00 154,854 0,021 16,152 2,706 0,000 2,362 61,16 264,153 0,000 0,000 264,152 36,780 0,000 0,000 36,779
29,887 1,380 0,00 419,148 0,011 22,968 2,658 0,000 2,368 120,46 966,774 0,000 0,000 966,773 101,479 0,000 0,000 101,479
*
Table 13 — Characteristic values of a tilting-pad bearing with four centrally (ΩΩ = 0,5) supported tilting pads (Ω = 80°, φ = 45°, K = 2, B* = 1)
F F,1 P
* * * * * * * * * * * * * * *
So ε β [°]
pS⋅ o h F Q Q Q ΔT c c c c d d d d
max min f 3 P 2 max 11 12 21 22 11 12 21 22
0,000 0,000 0,00 0,441 0,856 2,814 0,929 0,000 3,699 1,02 0,437 0,000 0,000 0,437 0,607 0,000 0,000 0,607
0,033 0,050 0,00 0,485 0,823 2,818 0,928 0,000 3,699 1,10 0,441 0,000 0,000 0,441 0,609 0,000 0,000 0,609
0,066 0,100 0,00 0,535 0,789 2,830 0,926 0,000 3,699 1,19 0,453 0,000 0,000 0,453 0,617 0,000 0,000 0,617
0,137 0,200 0,00 0,656 0,722 2,877 0,921 0,000 3,700 1,38 0,505 0,000 0,000 0,505 0,651 0,000 0,000 0,651
0,216 0,300 0,00 0,814 0,655 2,959 0,911 0,000 3,702 1,62 0,598 0,000 0,000 0,598 0,710 0,000 0,000 0,710
0,309 0,400 0,00 1,025 0,589 3,081 0,898 0,000 3,704 1,90 0,750 0,000 0,000 0,750 0,803 0,000 0,000 0,803
0,424 0,500 0,00 1,314 0,522 3,255 0,881 0,000 3,706 2,26 0,987 0,000 0,000 0,987 0,938 0,000 0,000 0,938
0,574 0,600 0,00 1,723 0,455 3,495 0,858 0,000 3,709 2,71 1,363 0,000 0,000 1,363 1,142 0,000 0,000 1,142
0,777 0,700 0,00 2,318 0,390 3,823 0,830 0,000 3,715 3,23 1,973 0,000 0,000 1,973 1,466 0,000 0,000 1,466
1,064 0,800 0,00 3,222 0,326 4,272 0,794 0,000 3,723 3,92 2,989 0,000 0,000 2,989 1,974 0,000 0,000 1,974
1,494 0,900 0,00 4,679 0,264 4,899 0,749 0,000 3,735 4,93 4,804 0,000 0,000 4,804 2,812 0,000 0,000
...








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