【摘要】 本文把实测的路面不平整作为随机输入,将车辆简化成五个自由度体系,用随机振动的方法研究了人-车-路系统的相互作用。计算了各种路况和各种行车速度情况下,车辆与路面的随机作用力的功率谱和方差,并与实测结果进行了对比。结果表明理论计算结果与实测结果比较相符。更多还原

【Abstract】 In this paper, the experimental surface roughness of pavementis regarded as the random input and the vehicle is simplified as a five degree-freedom system. The interaction force of Man-Vehicle-Road system is investigated by means of random vibration. The response spectrumand standard deviation of the force is calculated with different cases of pavement roughness. In the end of the paper, the compared results between theory and experiment show that the values of calculation and experiment are very similar更多还原