Optimal Design of Working Arm's Joint Point Based on GA-PSO Hybrid Algorithm
The excavator working arm cannot be separated from the existing construction device,but the hinge pin shaft is broken due to bearing and vibration during the working process.In order to improve the reliability of the work,the working principle is analyzed by establishing a three-dimensional model of the working arm through SolidWorks software.A planar linkage mecha-nism is composed of a bucket,a bucket rod,a movable arm and an oil cylinder to realize the whole working process.By establish-ing a dynamic model of the boom,using the method of the homogeneous matrix,the position parameters of the hinge points of each component are analyzed,and the external forces and moments are obtained for each hinge point.The rotation diagram of the arm is established with the force acting on each hinge point of the arm as the optimization objective.Taking the coordinate param-eters of each hinge point as the design variable,the stress on the hinge point after rotation is analyzed.Taking the work done by the moving arm cylinder as the constraint condition,the objective function model is established by the working stroke of the cylin-der.By GA-PSO hybrid algorithm for selection,mutation and crossover operation and improve the working accuracy Optimiza-tion Design of parameters of the arm.The whole work simulation analysis of the working arm is carried out by using ADAMS soft-ware,and obtain the working armoptimized curve before and after optimization of hinge point.Through the optimization of GA-PSO hybrid algorithm,the force of hinge point is optimized before optimization.At the same time,provides the theoretical research foundation for the related construction machinery research.
NETL
NSTL
万方数据
维普
