iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
ISO

IEC 61400-4

(Main)

Wind energy generation systems — Part 4: Design requirements for wind turbine gearboxes

Wind energy generation systems — Part 4: Design requirements for wind turbine gearboxes

IEC 61400-4:2025 is applicable to enclosed speed increasing gearboxes for horizontal axis wind turbine drivetrains with a power rating in excess of 500 kW. This document applies to newly designed gearboxes for wind turbines installed onshore or offshore. The technical requirements given in this document are not intended for repaired or refurbished gearboxes, or for the extension of the service life beyond the design life. This document provides requirements and guidance on the analysis of the wind turbine loads in relation to the design of the gear and gearbox elements. The gearing elements covered by this document include such gears as spur, helical or double helical and their combinations in parallel and epicyclic arrangements in the main power path. This document does not apply to power take off (PTO) gears. This document includes requirements, design recommendations, and rating of gearboxes with rolling bearings, plain bearings, or combinations of both bearing types. This document is supported by two Technical Reports: IEC TR 61400‑4‑2 provides additional information on lubrication of wind turbine drivetrains and IEC TR 61400‑4‑3 contains explanatory notes and supportive information to the requirements specified in this document. It is published as a double logo standard. This second edition cancels and replaces the first edition published in 2012. This edition includes the following significant technical changes with respect to the previous edition: - extension of the scope to wind turbines above 2 MW reference power; - considerations for converging differing approaches to reliability in gear, bearing and wind turbine standards; - new clause on wind turbine loads specific to drivetrains; - revised clause on verification and validation; - new clause on design requirements for plain bearings; - revised and expanded design considerations for rolling bearings; - revised clause on considerations and requirements in the design and analysis of gearbox structural elements; - updated considerations and requirements on lubricants and lubrication systems; - removal of requirements for documenting the compliance of a design with the requirements of the document in favour of reference to IECRE OD‑501‑2.

Systèmes de génération d’énergie éolienne — Partie 4: Exigences de conception des boîtes de vitesses des éoliennes

General Information

Status
Not Published
ICS
21.200 - Gears
27.180 - Wind turbine energy systems
Technical Committee
ISO/TC 60 - Gears
Drafting Committee
ISO/TC 60 - Gears
Current Stage
6000 - International Standard under publication
Start Date
11-Jul-2024
Completion Date
19-Apr-2025
Ref Project

Relations

Revises
IEC 61400-4:2012 - Wind turbines — Part 4: Design requirements for wind turbine gearboxes
Effective Date
06-Jun-2022

Buy Standard

IEC 61400-4 - Systèmes de génération d’énergie éolienne — Partie 4: Exigences de conception des boîtes de vitesses des éoliennes Released:9/18/2023IEC 61400-4 - Systèmes de génération d’énergie éolienne — Partie 4: Exigences de conception des boîtes de vitesses des éoliennes Released:9/18/2023
PreviousNext
Draft
IEC 61400-4 - Systèmes de génération d’énergie éolienne — Partie 4: Exigences de conception des boîtes de vitesses des éoliennes Released:9/18/2023
French language
96 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (Sample)


PROJET DE NORME INTERNATIONALE
IEC/DIS 61400-4
ISO/TC 60 Secrétariat: ANSI
Début de vote: Vote clos le:
2023-09-22 2023-12-15
Systèmes de génération d’énergie éolienne —
Partie 4:
Exigences de conception des boîtes de vitesses des
éoliennes
Wind energy generation systems —
Part 4: Design requirements for wind turbine gearboxes
ICS: 27.180; 21.200
Le présent document est distribué tel qu’il est parvenu du secrétariat du comité.
CE DOCUMENT EST UN PROJET DIFFUSÉ POUR
OBSERVATIONS ET APPROBATION. IL EST DONC
SUSCEPTIBLE DE MODIFICATION ET NE PEUT
ÊTRE CITÉ COMME NORME INTERNATIONALE
AVANT SA PUBLICATION EN TANT QUE TELLE.
Ce projet est soumis à un vote parallèle à ISO et à IEC.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES
FINS INDUSTRIELLES, TECHNOLOGIQUES ET
COMMERCIALES, AINSI QUE DU POINT DE VUE
DES UTILISATEURS, LES PROJETS DE NORMES
INTERNATIONALES DOIVENT PARFOIS ÊTRE
CONSIDÉRÉS DU POINT DE VUE DE LEUR
POSSIBILITÉ DE DEVENIR DES NORMES
POUVANT SERVIR DE RÉFÉRENCE DANS LA
RÉGLEMENTATION NATIONALE.
Numéro de référence
LES DESTINATAIRES DU PRÉSENT PROJET IEC/DIS 61400-4:2023(F)
SONT INVITÉS À PRÉSENTER, AVEC LEURS
OBSERVATIONS, NOTIFICATION DES DROITS
DE PROPRIÉTÉ DONT ILS AURAIENT
ÉVENTUELLEMENT CONNAISSANCE ET À
© IEC 2023
FOURNIR UNE DOCUMENTATION EXPLICATIVE.

IEC/DIS 61400-4:2023(F)
PROJET DE NORME INTERNATIONALE
IEC/DIS 61400-4
ISO/TC 60 Secrétariat: ANSI
Début de vote: Vote clos le:
2023-09-22 2023-12-15
Systèmes de génération d’énergie éolienne —
Partie 4:
Exigences de conception des boîtes de vitesses des
éoliennes
Wind energy generation systems —
Part 4: Design requirements for wind turbine gearboxes
ICS: 27.180; 21.200
Le présent document est distribué tel qu’il est parvenu du secrétariat du comité.
CE DOCUMENT EST UN PROJET DIFFUSÉ POUR
DOCUMENT PROTÉGÉ PAR COPYRIGHT
OBSERVATIONS ET APPROBATION. IL EST DONC
SUSCEPTIBLE DE MODIFICATION ET NE PEUT
ÊTRE CITÉ COMME NORME INTERNATIONALE
© ISO 2023
AVANT SA PUBLICATION EN TANT QUE TELLE.
Ce projet est soumis à un vote parallèle à ISO et à IEC.
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
ÉTABLIR S’ILS SONT ACCEPTABLES À DES
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
FINS INDUSTRIELLES, TECHNOLOGIQUES ET
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
COMMERCIALES, AINSI QUE DU POINT DE VUE
DES UTILISATEURS, LES PROJETS DE NORMES
ISO copyright office
INTERNATIONALES DOIVENT PARFOIS ÊTRE
Case postale 401 • Ch. de Blandonnet 8
CONSIDÉRÉS DU POINT DE VUE DE LEUR
CH-1214 Vernier, Genève
POSSIBILITÉ DE DEVENIR DES NORMES
POUVANT SERVIR DE RÉFÉRENCE DANS LA
Tél.: +41 22 749 01 11
RÉGLEMENTATION NATIONALE.
Numéro de référence
E-mail: copyright@iso.org
Web: www.iso.org LES DESTINATAIRES DU PRÉSENT PROJET IEC/DIS 61400-4:2023(F)
SONT INVITÉS À PRÉSENTER, AVEC LEURS
Publié en Suisse
OBSERVATIONS, NOTIFICATION DES DROITS
DE PROPRIÉTÉ DONT ILS AURAIENT
ÉVENTUELLEMENT CONNAISSANCE ET À
ii
© IEC 2023 – Tous droits réservés
© IEC 2023
FOURNIR UNE DOCUMENTATION EXPLICATIVE.

IEC/DIS 61400-4:2023(F)
IEC CDV 61400-4 © IEC 2023 – 2 –
SOMMAIRE
AVANT-PROPOS . 6
INTRODUCTION . 9
1 Domaine d’application . 10
2 Références normatives . 11
3 Termes, définitions, et conventions . 14
3.1 Termes et définitions. 14
3.2 Conventions . 17
4 Symboles, abréviations et unités . 20
4.1 Symboles et unités . 20
4.2 Abréviations . 22
5 Processus de conception . 24
5.1 Généralités . 24
5.2 Type de boîte de vitesses . 24
5.3 Durée de vie théorique, durée de vie en service et fiabilité. 25
5.4 Classe de composants et conséquence d’une défaillance . 26
5.5 Processus de conception . 26
6 Interfaces et charges des boîtes de vitesses . 29
6.1 Généralités . 29
6.2 Interfaces . 30
6.3 Charges . 30
6.4 Dynamique de train d’entraînement . 31
6.4.1 Introduction . 31
6.4.2 Exigences relatives au modèle. 31
6.4.3 Analyses exigées . 32
6.4.4 Évaluation de l’excitabilité . 33
6.4.5 Vérification du comportement dynamique dans l'environnement du
système . 33
7 Exigences en matière de conception et d’évaluation . 34
7.1 Engrenages . 34
7.1.1 Considérations de fiabilité. 34
7.1.2 Calcul de la capacité de charge des engrenages . 34
7.1.3 Facteurs de charge . 38
7.1.4 Matériaux . 40
7.1.5 Exactitude . 40
7.1.6 Fabrication . 41
7.2 Paliers à éléments roulants . 41
7.2.1 Considérations de fiabilité. 41
7.2.2 Matériaux . 42
7.2.3 Considérations de conception générale . 42
7.2.4 Exigences pour les interfaces . 47
7.2.5 Considérations de conception . 47
7.2.6 Lubrification des paliers . 50
7.2.7 Calculs d'évaluation . 51
7.3 Paliers lisses . 54
7.3.1 Considérations de fiabilité. 54
7.3.2 Cas de charge de conception et risques associés . 54
© IEC 2023 – Tous droits réservés

IEC/DIS 61400-4:2023(F)
IEC CDV 61400-4 © IEC 2023 – 3 –
7.3.3 Exigences pour les interfaces . 56
7.3.4 Ajustements de l'arbre et du carter . 57
7.3.5 Régime de lubrification hydrodynamique . 57
7.3.6 Calculs du régime de lubrifiant . 57
7.3.7 Exigences relatives aux paliers . 58
7.4 Arbres, clavettes, joints de carter, cannelures et fixations . 59
7.4.1 Arbres. 59
7.4.2 Raccordements arbre-moyeu . 60
7.4.3 Joints d'étanchéité des arbres . 61
7.4.4 Fixations . 61
7.4.5 Assemblages boulonnés . 61
7.4.6 Circlips . 63
7.5 Éléments structurels . 63
7.5.1 Généralités . 63
7.5.2 Interfaces, conditions aux limites et charges . 63
7.6 Lubrification . 64
7.6.1 Généralités . 64
7.6.2 Caractéristiques de performance des lubrifiants. 64
7.6.3 Viscosité du lubrifiant . 64
7.6.4 Méthode de lubrification et de refroidissement . 65
7.6.5 Quantité de lubrifiant dans le système de lubrification . 65
7.6.6 Températures de fonctionnement . 65
7.6.7 Régulation de la température . 66
7.6.8 Surveillance de l'état du lubrifiant . 67
7.6.9 Filtration du lubrifiant . 67
7.6.10 Orifices . 68
7.6.11 Indicateur de niveau de lubrifiant . 68
7.6.12 Bouchons magnétiques . 69
7.6.13 Orifice de reniflard . 69
7.6.14 Capteur de flux . 69
8 Vérification et validation de la conception . 69
8.1 Généralités . 69
8.2 Plan de vérification et de validation . 69
8.3 Catégorisation des modes de défaillance . 70
8.4 Méthodes de vérification . 70
8.4.1 Généralités . 70
8.4.2 Essais. 71
8.4.3 Similitude. 73
8.4.4 Simulation . 73
8.5 Matrice de vérification et de validation . 73
9 Fabrication et assurance qualité . 78
9.1 Généralités . 78
9.2 Plan qualité . 78
9.2.1 Généralités . 78
9.2.2 Inspection de l'état de surface des engrenages après rectification . 78
9.3 Processus critiques . 78
9.4 Contrôle statistique des processus . 79
9.5 Essais de réception en usine . 79
9.5.1 Objectifs des essais . 79
© IEC 2023 – Tous droits
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

ISO
IEC 61400-4:2012(Main)
Wind turbines — Part 4: Design requirements for wind turbine gearboxes

IEC 61400-4:2012(E) is applicable to enclosed speed increasing gearboxes for horizontal axis wind turbine drivetrains with a power rating in excess of 500 kW. This standard applies to wind turbines installed onshore or offshore. It Standard provides guidance on the analysis of the wind turbine loads in relation to the design of the gear and gearbox elements. The gearing elements covered by this standard include such gears as spur, helical or double helical and their combinations in parallel and epicyclic arrangements in the main power path. The standard is based on gearbox designs using rolling element bearings. Also included is guidance on the engineering of shafts, shaft hub interfaces, bearings and the gear case structure in the development of a fully integrated design that meets the rigours of the operating conditions. Lubrication of the transmission is covered along with prototype and production testing. Finally, guidance is provided on the operation and maintenance of the gearbox.

  • Standard
    146 pages
    English language
    sale 15% off
ISO
IEC 61400-4:2012(Main)
Wind turbines — Part 4: Design requirements for wind turbine gearboxes

IEC 61400-4:2012(E) is applicable to enclosed speed increasing gearboxes for horizontal axis wind turbine drivetrains with a power rating in excess of 500 kW. This standard applies to wind turbines installed onshore or offshore. It Standard provides guidance on the analysis of the wind turbine loads in relation to the design of the gear and gearbox elements. The gearing elements covered by this standard include such gears as spur, helical or double helical and their combinations in parallel and epicyclic arrangements in the main power path. The standard is based on gearbox designs using rolling element bearings. Also included is guidance on the engineering of shafts, shaft hub interfaces, bearings and the gear case structure in the development of a fully integrated design that meets the rigours of the operating conditions. Lubrication of the transmission is covered along with prototype and production testing. Finally, guidance is provided on the operation and maintenance of the gearbox.

  • Standard
    146 pages
    English language
    sale 15% off
ISO
ISO 21013-2:2025(Main)
Cryogenic vessels — Pressure-relief accessories for cryogenic service — Part 2: Non-reclosable pressure-relief devices

This document specifies the requirements for the design, manufacture and testing of non‑reclosable pressure-relief devices for cryogenic service, i.e. for operation with cryogenic fluids in addition to operation at temperatures from ambient to cryogenic. This document is restricted to bursting‑disc and buckling‑pin devices not exceeding a nominal diameter size (DN) of 200 that are designed to relieve single‑phase vapours or gases. A bursting‑disc or buckling‑pin assembly can be specified, constructed and tested such that it is suitable for use with more than one gas or with mixtures of gases. NOTE This document does not provide methods for determining the capacity of bursting‑disc or buckling‑pin devices for a particular cryogenic vessel. Such methods are provided in ISO 21013-3.

  • Standard
    6 pages
    English language
    sale 15% off
ISO
ISO 19223-2:2025(Main)
Lung ventilators and related equipment — Vocabulary and semantics — Part 2: High frequency and jet ventilation

This document defines terms for: — high-frequency oscillatory ventilation (HFOV); — percussive ventilation, including high-frequency percussive ventilation (HFPV); — jet ventilation, including high frequency jet ventilation (HFJV); — modes that combine high-frequency and physiological-rate ventilation. It is applicable: — in lung ventilator and breathing-therapy device standards, — in health informatics standards, — for labelling on medical electrical equipment and medical electrical systems, — in medical electrical equipment and medical electrical system instructions for use and accompanying documents, — for medical electrical equipment and medical electrical systems interoperability, and — in electronic health records. This document is also applicable to those accessories intended by their manufacturer to be connected to a ventilatorbreathing system or to a ventilator, where the characteristics of those accessories can affect the basic safety or essential performance of the ventilator or ventilator breathing system. NOTE This document can also be used for other applications relating to lung ventilation, including non-electrical devices and equipment, research, description of critical events, forensic analysis and adverse event (vigilance) reporting systems.

  • Standard
    15 pages
    English language
    sale 15% off
ISO
ISO/IEC 14496-32:2025(Main)
Information technology — Coding of audio-visual objects — Part 32: File format reference software and conformance

This document describes the reference software and conformance suite for the file format documents in multiple standards. Since these standards share a lot of technology, their reference software and conformance program are being handled together. These standards are: ISO/IEC 14496-12, ISO/IEC 14496-14, ISO/IEC 14496-15, ISO/IEC 14496-30 and ISO/IEC 23008-12. The purpose of the conformance suite is to cover the set of valid features that can be exercised in the file format. Media conformance is not covered, though of course to exercise the file format features, media will be stored.

  • Standard
    23 pages
    English language
    sale 15% off
ISO
ISO 1003:2025(Main)
Spices and condiments — Whole/pieces and ground dried ginger (Zingiber officinale Roscoe) — Specification

This document specifies requirements for dried ginger (Zingiber officinale Roscoe) in whole/pieces and ground forms. Annex A specifies a method for the determination of calcium. Recommendations for storage and transport conditions are given in Annex B.

  • Standard
    9 pages
    English language
    sale 15% off
ISO
ISO/IEC 29794-5:2025(Main)
Information technology — Biometric sample quality — Part 5: Face image data

This document establishes requirements on implementations that quantify how a face image’s properties conform with those of canonical face images, for example those specified in ISO/IEC 39794-5:2019, Clause D.1, for three use-cases: 1) collection of reference samples for ID documents; 2) sample system enrolment; and 3) probes for instantaneous response. This document also establishes terms and definitions for quantifying face image quality and specifies methods for quantifying the quality of face images. This document does not establish requirements on: — assessing the quality of pairs or sequences of images; NOTE This document establishes requirements for software that inspects exactly one image. This document does not establish requirements for software that compares two or more images (such as biometric recognition). However, the computations of this document can be applied separately to each image in a pair or sequence. — assessing the quality of 3D captures; — encodings of face image quality data; — performance evaluation of face image quality assessment algorithms. The use cases within scope of this document primarily address the assessment of images from data capture subjects who consent to processing of their biometric data, or for whom biometric capture is operationally authorized.

  • Standard
    63 pages
    English language
    sale 15% off
ISO
ISO/IEC TR 23951:2025(Main)
Information technology — Cloud computing — Best practices for using the cloud service level agreement (SLA) metric model

This document provides best practices for using the ISO/IEC 19086-2 metric model, illustrated with examples.

  • Technical report
    33 pages
    English language
    sale 15% off
ISO
ISO 9073-5:2025(Main)
Nonwovens — Test methods — Part 5: Determination of resistance to mechanical penetration (ball burst procedure)

This document specifies a method for determining the resistance to mechanical penetration of nonwoven fabrics by a ball of a given diameter. The method is primarily designed to be used on nonwovens with some degree of elasticity, for which a regular burst test does not apply.

  • Standard
    8 pages
    English language
    sale 15% off
  • Draft
    10 pages
    French language
    sale 15% off
ISO
ISO/TS 18973:2025(Main)
Railway infrastructure — Rail fastening systems — Two directional test method for resistance to repeated loading

This document describes a test procedure for the determination of resistance to repeated loading by – amongst others – applying out-of-phase load cycles which generate forces in two directions, representative of those caused by traffic on railway track, taking into account the effect of two consecutive axles of passing railway vehicles.

  • Technical specification
    28 pages
    English language
    sale 15% off