The Structural Analysis And Optimization For The Boom Of The Aerial Work Platform

Aerial work platform, a dedicated aerial equipment, has a very wide range ofapplication. Recently years, the demand for aerial work platform continues to increase asultra high rise buildings continue to emerge in our country. Few domestic enterprises,however, has the capability to manufacture the aerial work platform. Therefore, it hasimportant social significance to design a kind of safe, reliable performance and advancedtechnology aerial work platform.In this paper, the overall size of the aerial work platform was determined includingthe layout and stretching manner of boom, cross-sectional form, structural size, leg styleand its span. A three-dimensional model of the aerial work platform was establishedaccording to its overall size.The most dangerous load combination was determined by the analysis of theoperating condition of the boom. Calculate the strength and stiffness of two dangerousconditions of boom and obtain its stress and deformation maps with the finite analysis.The reasonable of the boom can be defined through the analysis of the obtained maps.By the mechanical analysis of the three-pivot and six-pivot luffing mechanism, theoptimization model including objective function, design variables and constrains wasestablished. And select the appropriate optimization method to optimize the analysis of thetwo institutions, the optimization results obtained by comparing before and after the twoluffing mechanism to optimize size, performance of learned institutions optimized toachieve the purpose of reducing the fuel tank force.Use Workbench to establish parametrical model of the boom system. The influence ofparameters on the jib section of maximum stress, maximum deformation and solid weightwere analysed using experimental design. Optimization results could be got throughGoal-driven optimization and the optimization to reduce the boom weight was realized.