Low-Speed Dynamic Characteristics of Hydraulic Clinder Based on Nonlinear Coupling- Force

Abstract:

The mechanism and producing condition of instsbility in low velocity of hydraulic clinder was analyzed based on dynamic model and test ,Nonlinear coupled force combined with hydraulic spring and Self-excited vibration were though the key factor that could effect instability in low angular velocity, The mathematic model was established to obtain the change rule of speed & instantaneous acceleration of the hydraulic clinder A simulation analysisis then created for dynamic characteristics of hydraulic clinder with Simulink to analyze the effect of friction torque, leakage and compressibility of oil and liquid on low-speed stability of hydraulic motor, The test shows that fluctuation was the negative characteristics of friction in the self-excited vibration conditions .Some measures were proposed to improve the low-speed stability of hydraulic clinder.

• Periodical: Advanced Materials Research (Volumes 199-200)
• Pages: 41-47
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.199-200.41
• Online since: February 2011
• Authors: Rong Chuan Lin, Yin Biao Guo, Yan Ping Li
• Keywords: Dynamics Experiment, Hydraulic-Spring Force, Low-Speed Dynamic Characteristic, Nonlinear Friction Force, Vibration Creep Acceleration

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