Dynamic characteristics analysis of hydraulic pipes in full hydraulic steeringsystem of engineering vehicles

GE Zhen-liang;HOU You-shan;JIANG Yong

Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (3) : 60-63,8.

PDF(1499 KB)
PDF(1499 KB)
Journal of Vibration and Shock ›› 2011, Vol. 30 ›› Issue (3) : 60-63,8.
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Dynamic characteristics analysis of hydraulic pipes in full hydraulic steeringsystem of engineering vehicles

  • GE Zhen-liang1; HOU You-shan2; JIANG Yong2
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Abstract

Based on power bond graph diagram method,the general mathematical model of full hydraulic steering system(FHSS) is established.The dynamic characteristics of hydraulic pipes of the FHSS and the influence of the pipeline parameters on the steering system is mainly analyzed by using 20sim bond graph software.The study results show that for the long and small diameter pipeline steering systems, the fluid resistance and fluid sense get larger,whice is conductive to suppress high-frequency system oscillation and shock to enhance the stability of steering system, but also extends the system's dynamic response time; for the short and big diameter pipeline, the fluid resistance and fluid sense get smaller,the System dynamic response is rapid, but the steering system has a intensive high-frequency oscillation,the oscillation amplitude and frequency increase,which is unconductive to the stability of steering system. Increasing the volume of oil elastic modulus of the system to improve the dynamic response speed and stability. The study results provide a theoretical support for the design of the full hydraulic steering system and pipeline nets’dynamic characteristics analysis.

Key words

full hydraulic steering system / hydraulic pipes / bond graph / 20sim / simulation

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GE Zhen-liang;HOU You-shan;JIANG Yong. Dynamic characteristics analysis of hydraulic pipes in full hydraulic steeringsystem of engineering vehicles[J]. Journal of Vibration and Shock, 2011, 30(3): 60-63,8
PDF(1499 KB)

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