Force Analysis on the Opening/closing Mechanism in the Door of Coal Hopper Car based on the Matrix Method

摘要

Based on the matrix method of the mechanism,to build the force matrices equation of the opening/closing mechanism of the door of coal hopper car.Taking the opening state as example,finishing the solution of the force of the mechanism.Using this method,the reaction of the joint and the thrust of the cylinder can be solved in any position.The results provide theoretical bases for selection of cylinders and design of the mechanism.This method can solve some complex problems easily which are difficult to the method of"first solving motion pair".Besides that,this method can be combined with simulation and experiment to show their respective advantages.In research,satisfying result can be obtained by using all the methods synthetically.