Comparison of nonlinear modeling methods for the composite rubber clamp  

作　　者：Yiming CAO Hui MA Xumin GUO Bingfeng ZHAO Hui LI Xin WANG Bing WANG 

机构地区：[1]School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819,China [2]Key Laboratory of Vibration and Control of Aero-Propulsion Systems of Ministry of Education of China,Northeastern University,Shenyang 110819,China [3]AVIC Shenyang Engine Design Institute,Shenyang 110013,China [4]Dalian Mengyu Machinery Co.,Ltd.,Dalian 116317,Liaoning Province,China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2024年第5期763-778,共16页应用数学和力学（英文版）

摘　　要：The cubic stiffness force model(CSFM)and Bouc-Wen model(BWM)are introduced and compared innovatively.The unknown coefficients of the nonlinear models are identified by the genetic algorithm combined with experiments.By fitting the identified nonlinear coefficients under different excitation amplitudes,the nonlinear vibration responses of the system are predicted.The results show that the accuracy of the BWM is higher than that of the CSFM,especially in the non-resonant region.However,the optimization time of the BWM is longer than that of the CSFM.

关 键 词：pipeline system nonlinear clamp model composite rubber clamp amplitude-dependent characteristic vibration response experiment 

分 类 号：V263[航空宇航科学与技术—航空宇航制造工程]