基于Lagrange-Maxwell方程的电容称重系统建模与分析

摘要

针对电容称重系统是由汽车板簧和测量电路等部分组成的机电动力系统,为提高所建模型的精确度,分析建模时需要同时考虑机械量和电量两方面的自由度,因此采用Lagrange- Maxwell方程来建立其动力学模型,仿真研究和试验结果证明了所建模型的有效性%The capacitance weighing system is electromechanical dynamical systems, which includes automobile plate spring, measuring circuit and other major parts. In order to increase modeling accuracy, it is not only the need consider mechanical freedom, but also the need to consider the electrical freedom. Therefore, the dynamic model on the basis of Lagrange-Maxwell equation is presented. The simulation results and the test data show that the modeling method is feasible and effective.