基于ANSYS分析某型号动车组M车固有振动特性对人的影响

对某型号动车组M车首先进行谐响应分析，确定车体结构在作用0~100Hz简谐载荷时的响应特性，得出与乘客乘座舒适性直接相关的车体部位的响应值与频率的关系曲线，将其与人体各部位或系统的固有频率对比后得出人体在M车车体结构受简谐载荷时的固有振动特性的敏感程度。然后以轨道轨距不平顺为例，对M车进行随机振动（PSD）分析，预测车体在受到基础激励的实际运行过程中结构响应情况，分析车体运行时影响乘客乘座舒适性的主要频率范围及原因。

Analyzing the Natural Vibration Characteristic of the Motor coach of CRH Influence on Human Beings

First, using harmonic response analysis the Motor coach of CRH to get the body structure harmonic response characteristics in the range of 0~100Hz. and get the value and frequency response curve which related to the passengers’ traveling comfort, get the Human Body inherent sensitivity of the vibration characteristics frequency bands in the harmonic load after contrasting in different parts of the body or the natural frequency of the Human Body system. Then using the track irregularity as an example, analysis random vibration (PSD) to forecast the structural response when be based on incentives in the actual operating condition, and analysis the frequency ranges and reasons which affecting passengers traveling comfort in the actual running condition.