机械系统的刚-柔耦合模型建模方法研究

为了实现虚拟样机的精确建模,采用了虚实混合建模方法。使用机械系统三维造型软件、有限元分析软件以及多体系统动力学仿真软件建立了曲柄滑块机构刚-柔耦合虚拟样机模型。结合相应的物理样机实验,并用有关实验数据修正虚拟样机模型,分析结果表明采用虚拟样机得出的结果与实验测试结果具有较好的一致性。为机械系统刚-柔耦合混合仿真虚拟模型的构建,探索了一种可行的方法。

Research of Modeling Flexible-rigid System Based on Mechanism

A precise rigid-flexible virtual prototype model for crank-slider mechanism was established by the virtual real mixed modeling technology and using commercial software, such as the CAD software, the Finite Element software and the Dynamics Simulation software. The locomotion parameters of physical and virtual crank-slider mechanism were measured or calculated. The result shows that the locomotion parameter from the virtual prototype system is of good agreement with the test system. This work has offered a feasible approach for establishing and researching the rigid-flexible virtual prototype model.