CAJ | 학술논문

针对阻尼结构设计,利用拓扑优化技术研究了阻尼结构模态损耗因子最大化设计问题.采用密度法(Pseudo-dermiby Method)和材料属性合理近似模型(Rationall Approximation of Material Properties,RAMP)建立了以阻尼材料用量为约束条件、模态损耗因子最大化的阻尼板结构拓扑优化数学模型,并进行了灵敏度分析;利用优化准则法(Optimality criteria,OC),给出了阻尼结构拓扑优化设计方法和流程,得到了在一定阻尼材料用量下阻尼板结构的模态损耗因子最大的阻尼材料最优分布构形.相关算例结果表明该方法适合于阻尼结构的优化设计或轻量化设计.
침대조니결구설계,이용탁복우화기술연구료조니결구모태손모인자최대화설계문제.채용밀도법(Pseudo-dermiby Method)화재료속성합리근사모형(Rationall Approximation of Material Properties,RAMP)건립료이조니재료용량위약속조건、모태손모인자최대화적조니판결구탁복우화수학모형,병진행료령민도분석;이용우화준칙법(Optimality criteria,OC),급출료조니결구탁복우화설계방법화류정,득도료재일정조니재료용량하조니판결구적모태손모인자최대적조니재료최우분포구형.상관산례결과표명해방법괄합우조니결구적우화설계혹경양화설계.
Topology optimization of the damping structure was studied for the maximized modal loss factors in this paper.Based on pseudo-density method and rational approximation of material properties (RAMP), the mathematical model was con-strueted for the maximized modal loss factors subjected to the damping material volume constraint. Reasonable topology configura-tion was obtained for the damping structure with optimality criteria. The optimization method or procedure in this paper can be ap-plied to optimization or lightweight design of the damping structure with the damping material volume constraint.