复合层板减振降噪特性的数值模拟研究  

The Numerical Simulation of Reducing Vibration and Noise in Complex Plywood

作　　者：李智[1] 殷祥超[1] 何兴华[1] 梁兴旺[1] 

机构地区：[1]中国矿业大学理学院,江苏徐州221008

出　　处：《噪声与振动控制》2006年第6期27-30,共4页Noise and Vibration Control

摘　　要：以悬臂复合层板为研究对象,利用理论模态分析技术,研究了复合层板的动态特性。利用有限元法对复合层板进行了数值模拟,分析了复合层板表层厚度和夹芯层的厚度、弹性模量等参数的改变对其固有特性的影响。得出了只要合理选择复合层板的参数就可以达到很好的减振降噪效果的结论。This paper analyzes the dynamic characteristic of complex plywood by the theory modal analysis technology. Using finite element methods to carry on the numerical simulation of complex plywood, from which the impact on its inherent characteristic of change in such parameters as thickness of top layer and inserted layer and the elastic modulus and so on are analyzed. It is show that the complex laminated plate have good characteristic of reducing shake and resisting noise as long as the parameter of which is choose rationally.

关 键 词：振动与波 复合层板 模态分析 减振 降噪 

分 类 号：O328[理学—一般力学与力学基础] TB535[理学—力学]