气动可调阻尼同轴一体式减振支柱阻尼特性研究

PDF(1801 KB)

振动与冲击 ›› 2015, Vol. 34 ›› Issue (20) : 115-119.

论文

陆文昌，杨帆，汪少华，孙晓强，陈龙

作者信息 +

Study on damping characteristics of pneumatic damping adjustable coaxial and integrated strut

LU Wen-chang，YANG Fan，WANG Shao-hua，SUN Xiao-qiang，CHEN Long

Author information +

文章历史 +

摘要

为改善减振器自适应能力，提出由空气弹簧、PDC阀及三筒式液压减振器组成的阻尼可调一体式减振支柱设计方案，该减振支柱阻尼特性与空气弹簧压强相关。介绍减振支柱的结构组成及工作原理并建立阻尼特性数学模型，用SIMULINK软件建立该减振支柱阻尼特性仿真模型。仿真结果表明，阻尼力随空气弹簧压强成非线性变化，空载及轻载均利于平顺性提高，重载利于行驶动力性提高，从而实现悬架系统自适应能力提高。通过台架实验测试空气弹簧压强不同时的阻尼特性与仿真结果基本一致，表明该减振支柱数学模型的正确性及结构设计方案的可行性。

Abstract

The design scheme of a type of suspension strut that damping characteristic can be controlled which consisting of an air spring, a PDC-valve and a three-tube hydraulic shock absorber was put forward to improve the adaptive ability of the shock absorber, its damping characteristic was related to the pressure of the air spring. The structure and basic working principle of the suspension strut was introduced. A mathematical model for the damping characteristic of the strut was established. And a model for the simulation of the strut was established by using software SIMULINK. The simulation results showed that the damping characteristic of the strut varies nonlinearly with the pressure of the air spring. The ride comfort of the vehicle was improved under empty load and light load conditions, and the dynamic performance of the vehicle was improved under heavy load conditions. Thus the adaptive ability was improved. The damping characteristic of the strut was tested under different pressure of the air spring conditions in the strut bench test. The test results showed good agreement with the simulation ones. It was showed that the mathematical model of the strut is correct and the design scheme of the strut is feasible.

导出引用

陆文昌，杨帆，汪少华，孙晓强，陈龙. 气动可调阻尼同轴一体式减振支柱阻尼特性研究[J]. 振动与冲击, 2015, 34(20): 115-119

LU Wen-chang，YANG Fan，WANG Shao-hua，SUN Xiao-qiang，CHEN Long. Study on damping characteristics of pneumatic damping adjustable coaxial and integrated strut[J]. Journal of Vibration and Shock, 2015, 34(20): 115-119

参考文献

[1]. 刘延庆,张建武. 液压减振器非线性动态仿真和试验[J].汽车工程,2002,24(2):152-156.
LIU Yan-qing, ZHANG Jian-wu. Nonlinear dynamic simulation for hydraulic shock absorber[J]. Automotive Engineering, 2002,24(2): 152-156.
[2]. 周长城,孟婕,田立忠,等. 汽车筒式减震器分段线性特性的建模与仿真[J]. 汽车工程,2010,32(4): 333-339.
ZHOU Chang-cheng, MENG Jie, TIAN Li-zhong, et al. Modeling and Simulation for the piecewise linear characteristics of automotive telescopic shock absorber[J]. Automotive Engineering, 2010,32(4): 333-339.
[3]. Simms A , Crolla D. The influence of damper properties on vehicle dynamic behavior[J]. Society of Automotive Engineer , 2002,1: 79-86.
[4]. 江浩斌,孙鹏,汪若尘,等. 电控空气悬架中的新型可调阻尼减振器设计[J].江苏大学学报:自然科学版,2011,32(1):22- 27.
JIANG Hao-bin, SUN Peng,WANG Ruo-chen, et al. Design of a new type of adjustable absorber for electric-controlled air suspension [J].Journal of Jiangsu University:Natural Science Edition,2011,32(1) 22-27.
[5]. Sammantaray A K. Modeling and analysis of preloaded liquid spring/damper shock absorbers[J]. Simulation Modeling Practice and Theory, 2009,17(1): 309-325.
[6]. 刘延庆,张建武,张利,等. 车用双筒减振器动态响应的实验与仿真[J]. 上海交通大学学报,2002,36(8): 1095-1099.
LIU Yan-qing, ZHANG Jian-wu ,ZHANG Li, et al. Experiment and simulation of dynamic response for vehicle twin tube hydraulic shock absorbers [J]. Journal of Shanghai University, 2002,36(8): 1095-1099.
[7]. 张立国,张嘉钟,贾丽萍,等. 空气弹簧的现状及其发展[J]. 振动与冲击,2007,26(2): 146-151.
ZHANG Li-guo,ZHANG Jia-zhong,JIA Li-ping,et al. Future and development of a air springs[J].Journal of Vbration and Shock, 2007,26(2): 146-151.
[8]. Xu Z M.External characteristics simulation and Performance analysis of automotive shock absorber based on Matlab /Simulink[J].Automotive Engineering,2011,33(4): 329-334.
[9]. 王积伟,章宏甲,黄谊. 液压与气压传动[M]. 北京：机械工业出版社, 2005.
[10]. 周长城,石沛林. 油气弹簧叠加阀片应力分析[J]. 汽车工程,2008,30(4): 349-353.
ZHOU Chang-cheng, SHI Pei-lin. Stress analysis of superposition throttle slices for hydro-pneumatic spring [J]. Automotive Engineering , 2008,30(4): 349-353.
[11]. Lee C T,Moon B Y. Simulation and experimental validation of vehicle dynamic characteristics for displacement-sensitive shock absorber using fluid-flow modeling[J]. Mechanical Systems and Signal Processing,2006, 20(2): 373-388.
[12]. 周长城，顾亮. 筒式减振器叠加节流阀片开度与特性试验[J].机械工程学报,2007,43(6):210-215.
ZHOU Chang-cheng,GU Liang.Superposition throttle-slices
Opening size and characteristic test of telescope-damper[J].
Chinese Journal of Mechanical Enginneering, 2007,43(6): 210-215.
[13]. Zhou C C, Zheng Z Y, Zhang X Y. Design method for throttle holes area of telescopic shock absorber for small electric vehicles [J]. Journal of Asian Electric Vehicles, 2009,7(1): 1191-1197.
[14]. 鞠锐,廖昌荣,周治江,等.单筒充气型轿车磁流变液减振器研究[J].振动与冲击,2014,33(19):86-92.
JU Rui, LIAO Chang-rong, ZHOU Zhi-jiang, et al. Car MR fluid shock absorber with mono-tube and charged-gas bag [J]. Journal of Vibration and Shock,2014,33(19):86-92.