Finite Element Analysis And Topological Optimization Design Of Aerial Working Platform Telescopic Arm

With the continuous development of the economy,the demand for high-altitude work platforms in all walks of life is increasing,and the requirements for its comprehensive performance are also increasingly stringent.At present,aerial work platforms are developing toward lightweight and miniaturization.As a highly-integrated telescopic boom-type aerial work platform,it will be a leader in the future high-altitude operation platforms.Research on them will meet the future development in the direction of aerial work platforms.telescopic boom as the main component of the telescopic boom type aerial work platform,its importance is self-evident,it will directly affect the performance of the whole machine and the cost of manufacturing and use,and the current research on it is mainly in the traditional design scheme.Some optimization and improvement have certain limitations,and they have not fully exerted their mechanical properties,resulting in the waste of materials and the increase of production costs.many large-scale aerial work platforms in foreign countries have carried out in-depth development of the cross-section of their telescopic arms.and make its cross-section form,related parameters and corresponding production and processing technology as a representative of high-performance technology confidentiality,which can glimpse its importance.currently with the continuous development and maturity of topology optimization technology,applying it to the project is also improving day by day,but There are relatively few researches on chemical design applying it to high-altitude operations platforms.Therefore,from the perspective of practical needs and practicality,we use the topology optimization method to design the concept,and follow-up through other optimization methods,and realize the optimization of the telescopic arm in the end is a " Trail path." In response to the above problems and the status quo,this paper starts the following research work:1.Simulation analysis of a telescopic boom of a high-altitude platform prototype was performed.Considering the actual working conditions,the CAE software was used to simulate and analyze the prototype and determine the hazardous location and its material surplus to find its optimal direction.2.The topological optimization of telescopic arm section was studied.Taking the prototype telescopic boom as the research object,the topology optimization mathematical model and related mechanics model are established.The topology optimization design is implemented by using the optistruct optimization module in Hyperworks,and reasonable suggestions are given according to the distribution rules of its topology graph.3.A lightweight design study of the top-optimized telescopic arm section was conducted.The parametric model is used to optimize the section size to determine the optimal section parameters of the telescopic boom and improve its overall performance.After analysis and verification,the rationality of its optimization method was determined.This paper optimizes the cross-section of the telescopic arm using topological optimization and size optimization combined with each other.With the guarantee of structural safety,the material is greatly saved.After the final optimization of the telescopic boom,the mass is lower than the prototype by 15.5%,while improving its comprehensive mechanical properties.The research methods used in this paper can provide guidance for similar engineering examples and inspire new ideas.