多点刚性耦合产品包装运输系统间接逆向子结构分析  

Indirect inverse sub-structure method for multi-point rigid coupling product packaging and transportation systems

作　　者：孟天涯 李明宇 郭栋[2] 王军[1,3] MENG Tianya1 , L1 Mingyu1 , GUO Dong2 , WANG Jun1,3(1. School of Meehanieal Engineering, Jiangnan University, Wuxi 214122, China; 2. Key Laboratory of Advanced Manufaeture Teehnology for Automobile Parts Ministry of Edueation, Chongqing University of Teehnology, Chongqing 400054, China; 3. Jiangsu Key Laboratory- of Advaneed Food Manufacturing Equipment and Teehnology, Wuxi 214122, Chin)

机构地区：[1]江南大学机械工程学院,江苏无锡214122 [2]重庆理工大学汽车零部件先进制造技术教育部重点实验室,重庆400054 [3]江苏省食品先进制造装备技术重点实验室,江苏无锡214122

出　　处：《振动与冲击》2018年第15期233-238,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金(51205167)

摘　　要：在实际测量过程中,产品包装运输系统的耦合界面处通常空间结构复杂,导致该处的频率响应函数难以测得。针对该问题,提出基于多点刚性耦合产品包装运输系统的间接逆子结构方法,该方法无需测得系统耦合界面处的频响函数即可求得未知子系统(产品/关键部件)在耦合点处的频响函数。基于动力学微分方程和线性叠加原理建立系统与子结构的力与位移关系,再通过矩阵变换,分别得到了用于不同刚性耦合包装运输系统的间接逆子结构方法公式。建立集总参数模型,验证该算法的正确性。结果表明该方法在运输包装领域具有优秀的可行性和应用前景。In actual measurement process,spatial structures at coupling interface of a product packaging and transportation system are commonly complex to cause FRF at interface is difficult to measure. Aiming at this problem,the indirect inverse sub-structure method based on multi-point rigid coupling product packing and transportation systems was proposed. This method did not need to measure FRF at system＇s coupling interface to directly obtain FRF of an unknown substructure（ product or key component） at coupling point. Firstly,based on dynamic equations and the principle of linear superposition,relations between forces and displacements of a system and its substructures were established. Then,through matrix transformation,formulas of the indirect inverse substructure method were deduced to be applied in different rigid coupling product packing and transportation systems. Finally,lumped parameter models were established to verify the correctness of the proposed method. The results showed that the indirect inverse sub-structure method is feasible and has good application prospects in fields of packaging and transportation.

关 键 词：运输包装 逆子结构 间接 刚性耦合 

分 类 号：TH212[机械工程—机械制造及自动化] TH213.3