移动荷载作用下夹层板的动力学响应仿真分析  

Simulation analysis for dynamic response of sandwich plates under moving load

作　　者：曾伟[1] 张劲夫[1] 邓子辰[1,2] 侯秀慧[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,西安710072 [2]大连理工大学工业装备结构分析国家重点实验室,大连116024

出　　处：《机械设计与制造》2011年第12期249-251,共3页Machinery Design & Manufacture

基　　金：国家自然科学基金(10972182;10772147;10632030);国家基础研究973项目(2006CB601202);111引智计划(B07050);大连理工大学工业装备结构分析国家重点实验室开放基金(GZ0802)资助

摘　　要：应用层合板理论将夹层板等效为一个正交各向异性板,分别计算出了实体金属夹芯、金属泡沫夹芯、正六边形蜂窝夹芯、金属波纹板夹芯四种夹层板的等效刚度,再应用正交各向异性板理论和模态叠加原理分析了这四种夹层板在移动荷载作用下的动力学响应,并对此做了比较分析,得出移动荷载作用下正六边形蜂窝夹层板相对于其它三种夹层板更具有优越性,而实体金属夹层板是这四种夹层板中承载能力最差的。所得结果对桥梁,公路的建设具有一定的指导意义。Based on the laminated plate theory,sandwich plate is equivalent to an orthotropic plate,where the equivalent rigidities of four sandwich plates including solid metal core ,metal foam core ,hexago- nal honeycomb core and metal corrugated core are calculated respectively.Then the orthotropic plate theory and modal superposition principle are applied for response calculation of the four sandwich plates.And the dynamic responses of the different sandwich plates under moving load are analyzed and compared.Thus valuable results are obtained that the sandwich plate of hexagonal honeycomb core is superior to the other three ones and solid metal core is the worst under moving load.The findings will provide guidelines for bridge and railway engineering applications.

关 键 词：移动荷载 夹层板 层合板理论 正交各向异性板 等效刚度 

分 类 号：TH16[机械工程—机械制造及自动化] O34[理学—固体力学]