一种单层囊式空气弹簧的隔振分析
宁小刚，王泽荫，车麒麟
（甘肃机电职业技术学院，甘肃 天水 741000）
摘要：空气弹簧是一种理想的非线性隔振元件，其容易实施主动控制，具有优良的刚性非线性特性，能有效抑制振动、缓冲减振。以某型囊式空气弹簧为研究对象，基于ABAQUS建立有限元模型，并对充气到0.7 MPa过程和压缩10 mm过程进行了模拟仿真，得出应力应变云图，借助X－Y曲线图分析了空气弹簧垂向力学特性，并对刚度进行了曲线拟合。最后基于MATLAB对空气弹簧的隔振性能进行了分析，得出其可以将外界简谐激励的振幅由10 mm降低到2 mm左右，具有良好的隔振性能。
关键词：空气弹簧；隔振；有限元分析
中图分类号：TB535+.1 文献标志码：A doi：10.3969/j.issn.1006-0316.2018.11.011
文章编号：1006－0316 (2018) 11－0045－05
Vibration Isolation Analysis of A Single - layer Cystic Air Spring
NING Xiaogang，WANG Zeyin，CHE Qilin
( Gansu Mechanical & Electrical Vocational College, Tianshui 741000, China )
Abstract：Air spring is an ideal nonlinear vibration isolation element. It is easy to implement active control, has the excellent rigidity nonlinear characteristic, can restrain the vibration effectively, cushioning the vibration. In this paper, a type of cystic air spring is used as the research object, the finite element model was established based on ABAQUS, carried out the simulation for the process of filling up to 0.7MPa and compressing 10mm,and obtained the stress strain cloud diagram. The vertical mechanical properties of air spring were analyzed by x-y curve, and the stiffness was fitted. Finally, based on MATLAB, the vibration isolation performance of air spring is analyzed, and it is concluded that the amplitude of the external harmonic excitation can be reduced from 10mm to about 2mm, with good vibration isolation performance.
Key words：air spring；vibration isolation；finite element analysis
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收稿日期：2018－05－18
作者简介：宁小刚（1991－），男，甘肃天水人，硕士，助理讲师，主要研究方向为汽车零部件。
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