双曲正切包装系统关键部件三维冲击谱研究  

Three-dimensional shock sprctrum of a hyperbolic tangent nonlinear packaging system with critical component

作　　者：王军[1,2] 卢立新[1,2] 王志伟[3] 

机构地区：[1]江南大学包装工程系,无锡214122 [2]中国包装总公司食品包装技术与安全重点实验室,无锡214122 [3]暨南大学包装工程研究所,珠海519070

出　　处：《振动与冲击》2010年第10期99-101,共3页Journal of Vibration and Shock

基　　金：国家自然科学基金(批准号:50775100);中央高校基本科研业务费专项基金(JUSRP11009);江南大学人才引进基金资助项目(1075210372090700)

摘　　要：研究双曲正切包装系统关键部件脉冲响应特性。建立二自由度非线性产品包装系统模型,得到冲击动力学方程并数值求解。依据结果得到关键部件三维冲击谱,并进一步讨论了频率比、阻尼、脉冲激励幅值和系统参数对关键部件冲击谱的影响规律,结果表明,频率比、阻尼、脉冲激励幅值和系统参数对关键部件冲击响应峰值影响显著,研究结论为产品包装设计提供科学依据。The shock characteristics of a hyperbolic tangent nonlinear packaging system with critical component were investigated under the action of half-sine acceleration pulse.The dynamical model of the system was developed,and the numerical results of the dynamical equations were gained.Based on the results,the three-dimensional shock response sprctrum of the critical component was obtained.And the effect of the pulse duration,the frequency ratio,the dmaping ratio,the pulse peak acceleration and the defined system parameters on the maximum shock response acceleration of the critical component was discussed.It was shown that all the effects are noticeable.

关 键 词：关键部件 非线性 二自由度 三维冲击谱 

分 类 号：TB485.1[一般工业技术—包装工程] O328[理学—一般力学与力学基础]