关键词: 振动与波, 矿用自卸车, 乘坐舒适性, 随机路面, 频域响应

Abstract:

Vehicle comfort has a serious impact on the driver's physical and mental health. In order to study the comfort of mining dump trucks driving on random roads, this article takes a 110t mining dump truck as the research object, a vehicle dynamic modal with 10-DOF was established to study the influence factors of vehicle comfort. Meanwhile, the test and analysis were conducted on the random road in the mine area. The time domain response, frequency response and ride comfort of the road under different working conditions are obtained. The result indicates that as the vehicle speed increases, both the magnitude and the frequency of the acceleration of the road excitation increase, resulting in poor vehicle comfort. With the increase of vehicle load, the frequency of road excitation decreases and the vehicle's comfort improves.