炮塔拆装台架变径设计与目标交互优化

Research on Variable Diameter Design and Target Interaction Optimization of Turret Disassembling Platform

为解决现役各种自行火炮炮塔拆装台架通用性差、种类冗杂的问题,通过分析其尺寸需求,设计了一种变径炮塔拆装台架,为实现拆装台架的轻量化设计并提高台架刚强度,提出了拓扑优化和尺寸优化相结合的目标交互优化设计方法.首先,以台架最易发生破坏的托盘质量最小为优化目标,最大许用位移、许用应力为约束条件,单元密度为设计变量,对托盘进行拓扑优化;然后,对拓扑优化结果进行规整,以提高刚强度为优化目标,质量不增加为约束条件,重要尺寸参数为设计变量,对托盘进行尺寸优化.结果表明,优化后托盘质量由1 421kg减为1 032kg,结构刚强度均有较大幅度提高,并通过工装试验验证了优化结果的有效性.

In order to solve the problems of poor universal and miscellaneous types of existing various self-propelled gun turret assembling platforms,a variable diameter turret assembling platform was designed based on the analysis of their size requirements.To realize a lightweight design and improve the stiffness and strength of the platform,a method of target interaction optimization design based on topology optimization and size optimization was proposed.Firstly,setting the minimum quality of the tray,causing the platform damaged easily,as the optimal target,the maximum allowable displacement and the allowable stress as constraint conditions,the cell density as design variables,the topology optimization of the tray was carried out.Then the topology optimization results were regularized,and setting the improvement of stiffness and strength as the optimization target,no increasing quality as constraint conditions,the important size parameters as design variables,the size optimization of the tray was implemented.The results show that,the quality can be reduced from 1 421 kg to 1 032 kg after optimization,the structural stiffness and strength are greatly improved.The effectiveness of the optimized results is verified by tooling test.