Research on a Magnetic Spring for Generating Negative Stiffness in Automobile Suspension
A magnetic spring for generating negative stiffness in automobile suspension was designed,and a simulation model was established.The simulation results show that under the premise that the to-tal stiffness of suspension system is greater than 0 N·mm-1,the offset accuracy of the magnetic spring with negative stiffness is about 5 mm,and the tuning accuracy at a frequency of 5 Hz ranges from 1.83 to 1.93 mm;the minimum offset is about 2.533 mm.The nonlinear characteristics of magnetic spring can reduce the resonance interval of suspension and increase the vibration isolation effect of suspen-sion,and its vibration isolation performance increases nonlinearly as the nonlinearity degree intensifies.
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维普
