APDL Parametric Design And Optimization Of Hydraulic Excavators Boom Based On VB

Hydraulic excavator can alleviate the heavy manual labor, accelerate the speed of the construction effectively, is widely used in infrastructure as a kind of construction machinery. With the rapid development of economic, the user claims not only for a good performance of the hydraulic excavator, but also reduce the design cycles to increase profits as much as possible. Designing a hydraulic excavator requires repeatedly modify and analysis to guarantee the safety, so repetitive work is very much. In order to shorten the design cycle, we need establish a parametric design and optimization system.The article developed a design and optimization system with hydraulic excavator boom as a study object. The system was carried out with APDL parametric design based on VB. First, the paper built the dynamic model of hydraulic excavator in theory, deduced the working device of the dynamic equations, through MATLB and ADAMS simulation verified the correctness of the dynamic equation, and obtained the parameters that needed in the subsequent hydraulic excavator boom design and optimization. Then, it developed a friendly interactive interface based on VB, completed the package of ANSYS software, achieved a direct call APDL command stream to complete the analysis and the results calculate and the picture display in the VB interface. Finally, the article realized the parametric design and optimization of the boom, made the parametric modeling, parametric solving and post-processing automatic operating. Under the current experimental conditions, applying the YC13-8 small hydraulic excavators in the system proved the accuracy was verified.This paper carried out the static analysis and modal analysis of the boom, and on the basis of parametric modeling to extract the design variables, state variables and the objective function, with the combining of optimization analysis file and optimization of process control file to optimizing the hydraulic excavator boom, iteration solving to get the optimal solution, taking the improvement program back to the original design module to compare and verify, achieving the aim of reducing the quality of the boom ultimately.