搭接界面非线性动力学分析方法研究
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- 英文论文题名：Nonlinear Dynamic Analysis for Joint Interface
- 论文作者：王东 ; 许元恒
- 英文论文作者：WANG Dong ; Xu Yuanheng ; Institute of Systems Engineering ; China Academy of Engineering Physics
- 年：2016
- 作者机构：中国工程物理研究院总体工程研究所;
- 论文关键词：连接界面 ; Iwan模型 ; 时频交替 ; 迟滞
- 英文论文关键词：joint interfaces ; Iwan model ; alternative time-frequency ; hysteresis
- 会议召开时间：2016-07-28
- 会议录名称：第二十七届全国振动与噪声应用学术会议论文集
- 语种：中文
- 分类号：O342
- 学会代码：ZDZD
- 会议名称：第二十七届全国振动与噪声应用学术会议
- 会议地点：中国黑龙江哈尔滨
- 主办单位：中国振动工程学会振动与噪声控制专业委员会
- 学会名称：中国振动工程学会振动与噪声控制专业委员会
- 页数：4
- 文件大小：628k
- 原文格式：D
- 会议级别：全国
摘要
采用Iwan模型模拟搭接界面刚度软化、迟滞非线性行为,并建立动力方程。采用时频交替方法求解非线性动力学方程在周期性激励作用下的稳态响应,并与数值积分方法计算的响应进行对比。结果表明:Iwan模型能够较好的描述连接界面的刚度软化、迟滞特性;时频交替方法能够更加快速精确的求解非线性系统的稳态响应。
Iwan model is applied to characterize the nonlinear softening stiffness and hysteresis behaviors of joint interfaces. With the consideration of these typical nonlinear behaviors, the dynamic differential equation of joint interface is established. Then, the alternative time-frequency method is used to analyze the steady dynamic response of system equation under the cycle oscillating force. The proposed method is investigated by the comparison with numerical integration solution. The results show that Iwan model can well describe the nonlinear behavior of softening stiffness and hysteresis between force-displacement of joint interfaces, and the alternative time-frequency method can solve the nonlinear dynamic equation more efficient and agree well with the numerical solution.
Iwan model is applied to characterize the nonlinear softening stiffness and hysteresis behaviors of joint interfaces. With the consideration of these typical nonlinear behaviors, the dynamic differential equation of joint interface is established. Then, the alternative time-frequency method is used to analyze the steady dynamic response of system equation under the cycle oscillating force. The proposed method is investigated by the comparison with numerical integration solution. The results show that Iwan model can well describe the nonlinear behavior of softening stiffness and hysteresis between force-displacement of joint interfaces, and the alternative time-frequency method can solve the nonlinear dynamic equation more efficient and agree well with the numerical solution.
引文
[1]SEGALMAN D J,GREGORY D L,STARR M J,et al.Handbook on dynamics of jointed structures[J].Sandia National Laboratories,Albuquerque,NM,2009.
[2]蔡力钢,王锋,李玲等.栓接结合部动态特性研究进展[J].机械工程学报,2013,49(9):158-168
[3]IWAN W D.A distributed-element model for hysteresis and its steady-state dynamic response[J].Journal of Applied Mechanics,1966,33(4):893-900.
[4]GAUL L,NITSCHE R.The Role of Friction in Mechanical Joints[J].Applied Mechanics Reviews,2001,54(2):93-106.
[5]SEGALMAN D J.A four-parameter Iwan model for lap-type joints[J].Journal of applied mechanics,2005,72(5):752-760.
[6]王东,徐超,万强.基于BP神经网络的连接界面非线性力学模型参数辨识.西南科技大学学报,2015,30(4):65-70
[7]ZUCCA S,FIRRONE C M.Nonlinear dynamics of mechanical systems with friction contacts:Coupled static and dynamic Multi-Harmonic Balance Method and multiple solutions[J].Journal of Sound and Vibration,2014,333(3):916-926.
[2]蔡力钢,王锋,李玲等.栓接结合部动态特性研究进展[J].机械工程学报,2013,49(9):158-168
[3]IWAN W D.A distributed-element model for hysteresis and its steady-state dynamic response[J].Journal of Applied Mechanics,1966,33(4):893-900.
[4]GAUL L,NITSCHE R.The Role of Friction in Mechanical Joints[J].Applied Mechanics Reviews,2001,54(2):93-106.
[5]SEGALMAN D J.A four-parameter Iwan model for lap-type joints[J].Journal of applied mechanics,2005,72(5):752-760.
[6]王东,徐超,万强.基于BP神经网络的连接界面非线性力学模型参数辨识.西南科技大学学报,2015,30(4):65-70
[7]ZUCCA S,FIRRONE C M.Nonlinear dynamics of mechanical systems with friction contacts:Coupled static and dynamic Multi-Harmonic Balance Method and multiple solutions[J].Journal of Sound and Vibration,2014,333(3):916-926.