路面随机激励下的履带式工程车辆振动仿真  

Vibration Simulation of Tracked Engineer Vehicle under Road Random Excitation

作　　者：孙劭文[1] 张琦[1] 李文鸿[2] 孙伟[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007 [2]河南工业大学数理系,河南郑州450052

出　　处：《工兵装备研究》2007年第2期22-26,共5页Engineer Equipment Research

摘　　要：阐述了路面谱的表达形式及应用方法，根据随机道路的统计量描述，运用谐波叠加法实现了道路时域模型的重构。同时，对履带式工程车辆在不平路面上的振动进行了研究，建立了车体纵向振动动力学模型，并利用虚拟样机进行了振动仿真试验。结果表明：利用谐波叠加法构造路面不平度是可行的，振动试验能够较好的反映车辆一路面的动力相互作用。The expression form and application method of road spectrum are described. According to the statistic illustration of stochastic road, the harmonic superposition method is used to realize the reestablishment of road time-domain model. The vibration of tracked engineer vehicle on rough road surface is studied, and a longitudinal vibration dynamic model of the vehicle body is established. And the vibration simulation test is conducted on a virtual prototype of the vehicle, and the testing results show that it is feasible to construct road surface unevenness with harmonic superposition method, and the vibration test can well reflect the dynamic interaction between vehicle and road surface.

关 键 词：履带式工程车辆 功率谱 谐波叠加 振动 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]