材料选型优化在结构减振中应用研究  

Application of metal-composite material selection optimization in vibration reduction of a structure

作　　者：陈炉云[1] 刘勇[1] 张裕芳[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240

出　　处：《振动与冲击》2013年第22期95-98,105,共5页Journal of Vibration and Shock

基　　金：海洋工程国家重点实验室青年创新基金资助(GKZD010059-22)

摘　　要：以结构振动功率流为减振评价标准,基于金属铺层假设,以结构材料属性、材料铺层数量为设计变量,建立基于金属-复合材料的材料选型结构动力学优化模型。并以船艇钢-复合材料组合结构基座为例进行多设计变量、多约束条件的动力学优化研究。结果表明,采用功率流为目标的优化模型,结合金属-复合材料选型优化,可使船艇基座结构具有优异的抑振性能。计算结果验证了该方法的可行性与有效性。The vibration power flow level varying of a structure was taken as a vibration reduction evaluation criterion here. Based on the metal stacking sequence hypothesis, the material property and layer number were taken as design variables, a structural dynamic optimization model based on metal-composite material selection optimization was established. Taking a steel-composite integrated ship＇s structure mounting as an example, the structural dynamic optimization design with multi-variable and multi-constraint was conducted, and the optimization problem was solved. Computational results showed that taking the vibration power flow as an objective, combining the metal-composite material selection optimization method, the ship＇s mounting structure can have an excellent vibration-suppressing capability, the proposed optimization method is effective and feasible.

关 键 词：材料选型优化 复合材料 动力学优化 功率流 

分 类 号：U661.44[交通运输工程—船舶及航道工程] TB333[交通运输工程—船舶与海洋工程]