路面特性对车辆振动影响规律研究

对软路面上车辆的扭转、垂直和纵向振动进行了研究,首先对振动车辆进行单因素(路面不平度、胎压、路面抗压强度和牵引负荷)分析,找出对车辆振动影响显著的因素及影响规律,在此基础上对影响振动的多因素进行正交试验,分析交互作用对车辆振动的影响规律。同时,对不同路面条件下振动进行研究分析。随着路面波形频率、路面抗压能力、轮胎气压和牵引负荷的增加,车辆扭转、垂直和纵向振动增加。对于垂直振动、扭振和纵向振动,其主要影响因素各不相同。

Effects of terrain characteristic on vehicle vibration

The vertical,horizontal and torsional vibrations of vehicle on soft terrain are studied.The single factor experiments,such as the terrain roughness frequency,inflation pressure,compressive strength of terrain and drawer-pull power,have been carried out. The affecting mechanisms of different factors on vehicle vibration have been analyzed.Based on single factor experiments,the main factors affecting vehicle vibration have been determined,and multi-factor orthogonal experiments have been undertaken.According to the results,the different factors acting each other on vehicle vibration have been analyzed by the regression design of multi-variable orthogonal polynomial method.When the terrain roughness frequency,inflation pressure,compressive strength of terrain and drawer-pull power increase,the vertical,horizontal and torsional vibrations of vehicle increase.The main factors affecting vertical, horizontal and torsional vibrations of vehicle are different.