Abstract:A new method about hydro-vibration is put forward. The hydro-vibration circuit is equipped with a variable-stiffness elastic mechanism that consists of a hydro-transformer, an accumulator and an actuator. The stiffness of the mechanism can be changed by regulating the displacement of the transformer, thereby changing the natural frequency and the vibration characteristics of the circuit. Owing to vibration isn’t controlled by hydro-valve, the throttle loss of energy can be avoided. Math-modeling and digital simulation of the system was done showing that natural frequency of the system can be adjusted in a wide bandwidth with modulating the displacement of the transformer.
吕云嵩. 基于液压变压器-蓄能器变刚度弹性机构的液压激振方法[J]. 振动与冲击, 2015, 34(23): 182-193.
Lv Yun-song . Hydro-vibration method based on variable-stiffness elastic mechanism consisting of hydro-transformer and accumulator. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(23): 182-193.
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