机械振动-评估车辆座椅振动的实验室方法-第3部分:z轴运动用动态假人规范

[中文适用范围]： 本文件规定了实验室振动试验中用于替代参与者的人体模型（动态假人）的要求。本文件适用于安装在工程车辆、轮式农业拖拉机和工业卡车座椅上的动态假人。本文件针对两个质量组别规定了技术要求、验收准则以及验证测试：轻量级（52 kg 至 55 kg）和 heavyweight 级（98 kg 至 115 kg）。它仅适用于用于车辆座椅 Z 轴（垂直方向）振动试验的被动式和主动式动态假人。本文件为两个质量组别规定了人体模型需要再现的人体生物动力学响应特性。本文件对开展未来研究提供了指导，以探索在使用符合本文件的参与者和动态假人测量座椅动态性能时可能达到的收敛程度。 [外文原描述]： This document specifies dynamic dummies used as replacements for participants in vibration tests of vehicle seats in laboratory. This document is applicable to seats installed in earth-moving machinery, agricultural wheeled tractors, and industrial trucks. This document specifies technical requirements, acceptance criteria, and a validation test for dynamic dummies representing the human body in two mass groups: lightweight (52 kg to 55 kg) and heavyweight (98 kg to 115 kg). It only applies to passive and active dynamic dummies used for vibration tests of vehicle seats in the Z-axis (vertical) direction. This document defines, for the two mass groups, the biodynamic response characteristics that the dynamic dummies are required to reproduce to represent those of the participants to be replaced. This document gives guidance on conducting future research to explore the degree of convergence that can be reached when the dynamic performance of seats is measured with participants and with dynamic dummies conforming to this document. NOTE 1 For seat testing, results have shown that the benefit of using a dynamic dummy is highly dependent on the excitation and dynamic characteristics of the seats. Depending on the type of vibration excitation applied, studies have suggested that the use of dynamic dummies can show benefit over an inert mass of equivalent weight only when testing suspension seats with higher natural frequency (>2 Hz). NOTE 2 The use of dynamic dummies has been reported to tend to overestimate the vibration isolation performance of seats compared with that measured with participants. Several factors can be in cause and require further investigation, one of them being the influence of the legs possibly not being adequately considered when using dynamic dummies.