基于精细传递矩阵法的气囊隔振器横向刚度特性分析  

Transverse stiffness characteristics analysis of air springs basedon the precise transfer matrix method

作　　者：成玉强 蔡存光 高华 帅长庚[1,2] CHENG Yuqiang;CAI Cunguang;GAO Hua;SHUAI Changgeng(Institute of Noise&Vibration,Naval University of Engineering,Wuhan 430033,China;State Key Lab of Ship Vibration&Noise,Wuhan 430033,China)

机构地区：[1]海军工程大学振动噪声研究所,武汉430033 [2]船舶振动噪声重点实验室,武汉430033

出　　处：《振动与冲击》2024年第4期61-68,124,共9页Journal of Vibration and Shock

基　　金：国防科研项目(15218-1052)。

摘　　要：构建并求解了预载条件下气囊隔振器的囊体力学模型,提出了一种气囊隔振器横向刚度特性的参数化计算方法。在考虑囊体预应力的条件下构建了囊体力学模型,引入位移中间向量并采用精细积分法推导了囊体状态向量间的传递矩阵,利用迭代法解析了囊体状态向量、内部压力以及结构参数之间的耦合变化关系,基于边界条件完成了囊体刚度的参数化求解,结合理想气体刚度模型完成了气囊隔振器横向刚度特性的计算分析。对比试验结果,验证了横向刚度特性计算方法的正确性,探究了主要设计参数对刚度特性的影响规律。Abellow mechanical model of anair spring under preload conditions wasconstructed and solved,and a parametric calculation method of the transverse stiffness characteristics of the air spring wasproposed.The bellow mechanical model wasconstructed under the condition of preload,and the transfer matrix between the bellow state vectors wasderived by introducing the intermediate displacement vectors and using the precision integration method.The coupling relationship between the state vectors of the bellow,the internal pressure,and the structural parameters wasanalyzed by aniterative method.Based on the boundary conditions,the parametric solution of the capsule stiffness wascompleted,and the calculation and analysis of the transverse stiffness characteristics of the air spring werecompleted by combining with the perfect pneumatic stiffness model.The correctness of the calculation method of transverse stiffness characteristics wasverified by comparing the test results,and the influence law of the main design parameters on the stiffness characteristics wasinvestigated.

关 键 词：气囊隔振器 纤维增强复合材料 横向刚度特性 薄壳理论 精细传递矩阵法 

分 类 号：TB535[理学—物理]