【摘要】 将动力反共振原理DAVI应用于振动机械,提出一种新型反共振隔振振动机械,即单质体反共振隔振振动机.利用Lagrange方程建立了该振动机械的数学模型,推导了传递率的表达式,并给出了配重对筛机振幅的影响及该种振动机动力学参数的选择计算方法.通过计算机仿真和模型试验证明了这种振动机的隔振效果优于一次隔振,接近二次隔振.通过合理选择动力学参数,振幅减小量几乎可以忽略不计,振幅的减小还可以通过适当增加激振力得到补偿.更多还原

【Abstract】 A new type of anti-resonance vibration isolation vibration machinery,namely a single-mass anti-resonance vibration isolation vibrator,has been proposed by applying the dynamic anti-resonance principle DAVI(dynamic anti-vibration isolator) into a vibration machine.Based on the Lagrange equation,a dynamic model of this vibration machinery was established,along with deduction of the transmissibility expression.The effect of a counterweight on amplitude of the vibration machine was analyzed,and research was conducted on the calculation method for selecting dynamic parameters of the vibration machine.The isolation effect was verified by computer simulation and modeling experiments,and is superior to one-stage vibration isolation while approaching that of two-stage vibration isolation.The amplitude devalue can be almost ignored by selecting dynamic parameters,and amplitude devalue can also be compensated by adding properly vibration.更多还原