本文件定义了铁路牵引车和拖车中乘客和乘务员座椅的实验室试验规范。 它涉及频率范围为0.5°的三轴直线振动Hz到50赫兹。它规定了用于座椅测试的输入测试振动。 本文件可以以频率响应函数的形式表征振动传递给座椅乘员的方式。它还提供了一个估计器，根据坐着的人感知的动态舒适度来显示座椅的行为。 根据座椅遇到的振动环境知识和振动模拟器的能力，可以使用和描述不同类型的激励。

This document defines specifications covering laboratory tests for seats designed for passengers and crew in railway tractive and trailer vehicles. It concerns tri-axial rectilinear vibration within the frequency range 0,5？Hz to 50？Hz. It specifies the input test vibration to be used at seat testing. This document makes it possible to characterize, in the form of frequency response functions, the manner in which vibration is transmitted to the seat occupant. It also provides an estimator showing the behaviour of the seat in terms of dynamic comfort perceived by the seated person. Different types of excitations can be used and are described depending on knowledge of the vibration environment encountered by the seat and the capability of the vibration simulator.