局部涂覆约束层阻尼纤维金属层合板非线性振动特性  

Nonlinear Vibration Characteristics of Fiber Metal Laminates Plate with Partial Constraint Layer Damping

作　　者：许卓 许沛尧 顾大卫 谭大鹏[2] 李晖 闻邦椿[3,4] XU Zhuo;XU Peiyao;GU Dawei;TAN Dapeng;LI Hui;WEN Bangchun(School of Mechanical Engineering,Northeast Electric Power University,Jilin 132011;School of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310014;Key Laboratory of Vibration and Control of Aero-Propulsion System Ministry of Education,Northeastern University,Shenyang 110819;School of Mechanical Engineering and Automation,Northeastern University,Shenyang 110819)

机构地区：[1]东北电力大学机械工程学院,吉林132011 [2]浙江工业大学机械工程学院,杭州310014 [3]东北大学航空动力装备振动及控制教育部重点实验室,沈阳110819 [4]东北大学机械工程与自动化学院,沈阳110819

出　　处：《机械工程学报》2024年第23期216-235,共20页Journal of Mechanical Engineering

基　　金：东北大学航空动力装备振动及控制教育部重点实验室研究基金(VCAME202204);浙江省自然科学基金探索青年(LQ23E050018)资助项目。

摘　　要：提出了一种考虑幅值依赖性的局部涂覆约束层阻尼的纤维金属层合板非线性振动模型。首先,基于Jones-Nelson非线性理论,推导了纤维层、金属层、黏弹性层和约束层4层之间的应力-应变关系。其次,利用能量法和Newton-Raphson迭代法求解了所研究结构的非线性振动特性;最后,基于复模法计算得到了结构的阻尼特性;为了验证模型的准确性和有效性,搭建了相应的实验测试系统,以涂覆不锈钢/Zn-33约束层阻尼的TA2/TC500纤维金属层板为研究对象进行了相应的测试。此外,还讨论了不同涂覆参数对纤维金属层合板非线性振动特性的影响。Considering the amplitude-dependence,a nonlinear vibration model of fiber metal laminates thin plate treated with partial constraint layer damping treatments is proposed.Based on the Jones-Nelson nonlinear theory,the model is established by deducing the stress-strain relationships among four layers including fiber layer,metal layer,viscoelastic layer and constraint layer.Then,the nonlinear vibration characteristics are solved by utilizing the energy method and the Newton-Raphson technique.Next,the damping character is acquired based on complex modulus method.The experimental example of a TA2/TC500 fiber metal laminates plate treated stainless steel/Zn-33 constraint layer damping is performed to validate the presented nonlinear vibration model.Furthermore,the effects of the treating factors on the nonlinear vibration characteristics of FMLs plate is discussed as well.

关 键 词：非线性振动模型 非线性振动特性 纤维金属层合板 振幅依赖性 局部约束层阻尼 

分 类 号：TB535[理学—物理]