金属橡胶材料的动态力学建模及参数辨识  

Dynamic Mechanical Modeling and Parameter Identification of Metal-rubber Materials

作　　者：杨坤鹏[1] 樊文欣[1] 曹存存[1] 桑满仙 佘勇[1] 

机构地区：[1]中北大学机械与动力工程学院,太原030051

出　　处：《机械科学与技术》2017年第12期1830-1833,共4页Mechanical Science and Technology for Aerospace Engineering

基　　金：山西省自然科学基金项目(2012011023-2);山西省高校高新技术产业化项目(20120021)资助

摘　　要：金属橡胶隔振器作为军用装备上的悬置元件,具有很好的缓冲减振作用。首先根据等效阻尼理论及傅里叶级数展开式来近似表示金属橡胶元件在隔振系统中所产生的阻尼力和弹性恢复力,而后由所建立的数学模型出发,推导出其参数线性辨识方程,利用遗传算法得到金属橡胶材料的线性刚度、三次刚度及滑移刚度,最终通过对比得到了其在不同激励条件下所形成的变化趋势。Metal-rubber is the components of the military vehicles mounting. It has the good buffering property and damping property. At first, the damping force and elastic restoring force are closely approximated on the basis of the equivalent damping theory and fourier series. Then, the linear equation of parameter on the basis of the existing mathematical model is obtained. Finally, the conclusion of the linear rigidity, cube rigidity and slip rigidity through the genetic algorithm is getten, and the trend of variation under the different excitation is also getten.

关 键 词：金属橡胶 等效阻尼 傅里叶级数 遗传算法 参数辨识 刚度 

分 类 号：TB302[一般工业技术—材料科学与工程]