| With the accelerated urbanization process, the schedule of maintenance work, i.e., urban power, construction and decoration, has already been mentioned up, and the demand on the arm acerial working equipment was higher and higher in shipbuilding industry, urban forestry, construction and other industries. The arm aerial working platform as a series of engineering equipment, was widely used in shipbuilding, construction, municipal construction, fire, port cargo and other industries. In this paper, the parametric modeling and optimization of the arm aerial working platform were studied based on GTZZ21 by applying the CAD modeling, the finite element analysis and virtual prototype technology, and the recommendations for improvement of the structrue being approved by companies were given. The results were as following:(1) The dynamic model of work organization of the arm aerial working platform was establish according to the modern design concept and method of virtual prototype.(2) The finite element analysis of the telescopic boom was carried out with the finite element analysis software ANSYS. Furthermore, the stuctural optimization design was realized by using the finite element analysis and optimization method.(3) The basic kinetic data in the actual prototype were obtained in order to test the accuracy and reasonableness of the dynamic model of the arm aerial working platform.(4) The optimizational mathematic models of the hinge points of the luffing cylinders were established by different objective function.(5) The optimization designs of the arm aerial working platform were carried out by changing the structural parameters. Furthermore, the best combination between the least force of the luffing cylinders and the least force of danger cross-section of the telescopic boom meeting to the left movement were determined by comparing the results using ADAMS and those of the finite element analysis, which was the most optimizational results. |
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