ISO 10326-2-2022 PDF

Full title and description

Mechanical vibration — Laboratory method for evaluating vehicle seat vibration — Part 2: Application to railway vehicles. This international standard (ISO 10326-2:2022) specifies laboratory test procedures and input vibrations for characterizing how vibration is transmitted through seats used by passengers and crew in railway tractive and trailer vehicles; available from ISO in published form (electronic and print).

Abstract

Defines specifications for laboratory tests on vehicle seats for railway applications covering tri-axial rectilinear vibration in the frequency band 0.5 Hz to 50 Hz, specifies input test vibration(s), describes different excitation types and provides methods to obtain frequency response functions and an estimator for dynamic comfort perceived by the seated person.

General information

• Status: Published (international standard).
• Publication date: 2022 (Edition 2, published March 2022).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 13.160 (Vibration and shock with respect to human beings); 45.060.01 (Railway rolling stock in general).
• Edition / version: Edition 2 (2022).
• Number of pages: 27 (ISO published document length).

Scope

Applies to laboratory testing of seats intended for passengers and crew of railway traction and trailer vehicles. The standard addresses tri-axial rectilinear seat vibration in the 0.5 Hz to 50 Hz frequency range, prescribes input vibration signals for seat tests, and sets out measurement and analysis methods to produce frequency response functions and comfort-related estimators. It is intended to allow reproducible comparison of seat vibration performance in a laboratory environment representative of railway seat service conditions.

Key topics and requirements

• Definition of input test vibration(s) for seat evaluation (tri-axial, rectilinear excitations, 0.5–50 Hz).
• Specification of laboratory set-up and instrumentation necessary for repeatable seat vibration tests.
• Methods to derive frequency response functions (seat-to-occupant transmission) and associated data reporting.
• Estimator(s) for dynamic comfort assessment of the seated person (guidance on interpreting dynamic behaviour).
• Descriptions of alternative excitation types depending on available vibration simulators and knowledge of in-service vibration environments.

Typical use and users

Used by railway vehicle seat designers and manufacturers, vehicle OEMs, independent test laboratories, ergonomists and human-factors engineers, and regulatory or conformity-assessment bodies that specify or verify seat vibration performance and occupant comfort in railway applications.

Related standards

ISO 10326-1:2016 — Part 1: Basic requirements (general laboratory requirements and measurement/analysis methods) is the foundational part referenced by application parts. ISO 10326-3:2024 — Part 3: dynamic dummies specification for Z-axis motion (complements seat testing methods where dynamic dummies are used). For human exposure evaluation and broader whole-body vibration guidance, ISO 2631 series (for example ISO 2631-1:1997) is commonly referenced for health/comfort criteria.

Keywords

vehicle seat vibration, seat testing, laboratory method, railway vehicles, tri-axial vibration, frequency response function, dynamic comfort, ISO 10326, human exposure to vibration.

FAQ

Q: What is this standard?

A: ISO 10326-2:2022 is the railway-vehicle application part of the ISO 10326 series that specifies laboratory methods to evaluate how vibration is transmitted through vehicle seats to the occupant and to assess dynamic comfort.

Q: What does it cover?

A: It covers tri-axial rectilinear laboratory excitation (0.5–50 Hz), prescribed input vibrations, test set-up and instrumentation guidance, procedures to obtain frequency response functions, and a comfort estimator for seats used in railway traction and trailer vehicles.

Q: Who typically uses it?

A: Seat and vehicle OEMs, independent testing laboratories, ergonomists, human-factors specialists, and compliance or procurement engineers involved with railway seating comfort and vibration performance.

Q: Is it current or superseded?

A: Current — ISO 10326-2:2022 (Edition 2, published 2022) is the active international edition; it replaces the earlier ISO 10326-2:2001 application part.

Q: Is it part of a series?

A: Yes — it is Part 2 of the ISO 10326 series. Part 1 (ISO 10326-1:2016) provides the basic requirements; Part 3 (ISO 10326-3:2024) addresses specification of dynamic dummies for vertical (Z-axis) tests. Users typically apply Part 1 together with the relevant application part (such as Part 2 for railway vehicles).

Q: What are the key keywords?

A: Vehicle seat vibration, seat testing, frequency response, dynamic comfort, railway seats, laboratory method, tri-axial vibration, ISO 10326.