【作者】 王国权； 许先峰； 余群；

【Author】 Wang Guoquan Xu Xianfen Yu Qun

【机构】 北京工业大学机电学院CAD/CAM工程中心；

【摘要】 应用面向整机系统虚拟样机的概念,将研究对象分为车架、悬架、轮胎、驾驶室、车厢、路面等模块。用BEAM力将悬架多片板簧简化一片主板簧和一片副板簧,用ADAMS的Fiala模型轮胎表示车辆轮胎,根据ISO噪声路面的功率谱参数,设计了车辆行驶的路面文件。建立了福田1028E2小卡汽车的三维实体虚拟整车模型,实现了虚拟车辆在计算机屏幕上的行驶。虚拟汽车仿真行驶时,能够体现真实车辆的运动学和动力学关系,驾驶员振动加速度仿真值与实测值接近。此研究表明,对于汽车这一复杂的机器系统,通过在计算机上建立虚拟样机进行平顺性分析是可行的。更多还原

【Abstract】 This paper presented the concept of virtual prototype for the whole system machine. In the processing of making virtual vehicle model, a whole-vehicle was disassembled as follow module: chassis, suspension, tire, cab and vehicle body etc. The complicated multi-leaf suspensions were replaced by chief spring and subordinate spring that according to ADAMA/Beam force. The tire was instead of by ADAMS/Fiala tire model. Road file that adapted the virtual test was designed which referred to the real road power spectrum. So a 3D virtual prototype of 1028E2 vehicle was set up. While the virtual vehicle was ride simulation in computer, the vibration of driver, vehicle body and tire were visual on computer screen, the acceleration of driver from virtual prototype analysis was closed to the real vehicle ride test. The results show that complicated machine system, such as vehicle could be successfully modeled by detailed 3-D prototype. Virtual test for complex mechanical system was reliable.更多还原