基于应力应变实验的有限元分析结果验证

Validation of the finite element analysis results based on stress and strain test

针对焊接机器人实际工况的复杂性,采用ANSYS对焊接机器人关键部件进行有限元分析,并在此基础上设计了应力应变实验对有限元分析结果进行验证。验证结果显示,实验数值与有限元分析值存在0.47%~29.36%的误差,但曲线的变化趋势是一致的,说明有限元仿真建模在边界条件、网格划分、载荷施加等方面的设置具有合理性,结果也较为可靠。对误差产生的原因进行了分析,为后续焊接机器人结构优化奠定了基础。

In order to verify the accuracy result of finite element analysis on welding robot,it uses ANSYS finite element system to analyze the key components of welding robot,obtains the stress and strain experiment from testing,validates the results of finite element analysis based on the simulation and test. This builds the foundation for the subsequent welding robot structure optimization.