摘要
可调整支架可以快速装拆并可灵活调整支撑外形,在军事目标的伪装防护方面有很好的应用前景。针对轻便可靠的设计要求,采用优化设计的方法,利用ANSYS的优化设计模块,选择可调整支架的支撑杆外径和壁厚、角钢的截面宽度和厚度等10个参数为优化变量,针对纵向雪压和横向风载两种最恶劣的工况,以满足力学条件为约束,以支架的质量最轻为优化目标,对可调整支架进行了优化分析,最终通过对优化结果的分析确定了合理的结构设计参数。应用表明,优化后的可调整支架在满足强度的前提下实现了减重的设计目标。
The adjustable bracket that can be assembled or disassembled rapidly and its supporting figuration can be nimbly adjusted, and has good applicational prospects in the respect to disguise defence of the military targets. Directed against the designing requirements of portability and reliability, by adopting the method of optimization design and using the ANSYS module tool of optimization design, 10 parameters of the outside diameter and wall thick-ness of stay-bar of the adjustable support, the width and thickness of section of angle iron etc. were chosen as the optimal variables. Aiming at two kinds of the most worst working conditions of longitu-dinal snow pressure and transverse wind load, taking the satisfaction of mechanical conditions as the constraint and taking the mass of bracket to be the lightest as the target of optimization, the optimization analysis on the adjustable bracket was carried out, finally as-certained the reasonable structural designing parameters through the analysis on the optimization results. It was indicated by application that under the premise of satisfying the strength, the adjustable bracket after optimization achieved the designing target of weight reduction.
出处
《机械设计》
CSCD
北大核心
2008年第8期53-56,共4页
Journal of Machine Design
基金
国家自然科学基金资助项目(50505051)
关键词
机构设计
有限元
优化设计
mechanism design
finite element
optimization design
