Research on Nonlinear Stiffness Characteristics of Hydro-Pneumatic Spring
Applied Mechanics and Materials(2012)
摘要
A kind of hydro-pneumatic spring with adjustable stiffness was designed. The two-level stiffness converse each other when oil pressure reach a certain value. A complex nonlinear mathematic model of hydro-pneumatic spring was set up on the basis of comprehensive analysis of it s working principle and structure. Simulation results comparison and theoretical analysis with the test data of bench test showed that the mathematic model is authentic.
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关键词
Hydro-pneumatic spring,Adjustable stiffness,Adjustable damping,Test
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