重型汽车制动器虚拟样机的建模与应用

Virtual Prototype Solid Modeling and Application of Heavy Truck Brake

为准确计算重型汽车鼓式制动器的制动效能因数,采用三维CAD绘图软件Pro/ENGINEER、有限元软件ANSYS、多体动力学仿真软件MSC.ADAMS,通过开发柔性体摩擦片与刚体制动蹄连接模块、柔性体摩擦片与刚体制动鼓非线性接触模块,建立了鼓式制动器的虚拟样机模型。应用鼓式制动器虚拟样机模型,对北京首钢重型汽车制造厂32t重型汽车的鼓式制动器进行仿真计算,仿真得出的鼓式制动器的制动效能因数,与试验测试结果基本相符。

In order to accurately calculate the braking effectiveness factor of drum brake shoe of heavy truck, the CAD software Pro/ENGINEER, the finite element analysis software ANSYS and the multi-body system simulation software MSC.ADAMS were used to establish the drum brake virtual prototyping model. The model was built by developing joint program module between the rigid shoe and the flexible ling and nonlinear contact force program module between the ling and the rigid drum. Using this model, the simulation was executed for the drum brake of 30t heavy duty truck of BEIJING SHOUGANG HEAVY DUTY TRUCK MANUFACTORT. The results show that the simulated braking effectiveness factor coincides with experimental results of the braking effectiveness factor of the heavy truck drum brake.