机械系统结构/控制耦合参数辨识及其应用研究

The dynamic structure-controlling coupling characteristics, generalized stiffness coefficient and generalized damp coefficient, of spot welding robots SIA120 and HIT120 were analyzed with a method of experimental modal analysis. Further, they were simulated and analyzed with a finite element method and a finite segment model. It is pointed out that the distribution of mass and stiffness of robot should be reasonable, and an optimized design method is demonstrated. The research has offered a practical method for identification of physical parameters of structure-controlling coupling system and analysis of dynamic characteristics of mechanical system. Its achievement is very important to raise the level of modern mechanical design and improve the dynamic characteristic of mechanical system.

目前机械系统动力学建模中的特性参数常是假设的，对于高速重载机械来说，这种假设与实际情况相比存在较大误差。将实验模态分析技术与有限段建模方法相结合，对结构/控制耦咸匦哉庵直呓缥侍獯恿椒矫娼谢ゲ勾恚晌迪低巢问媸短峁┮恢钟行У募际醴椒āＵ庀钛芯慷蕴岣呦执瞪杓扑胶透纳苹迪低车亩阅芫欣砺壑傅家庖濉