Abstract
The inner cylinder embedded fluidlastic base is a device installed on the main reduction transmission channel of the helicopter to isolate the vibration load of the fuselage from the rotor system, whose vibration isolation efficiency is quite high. Compared with the traditional combined fluidlatic isolator, the fluidlastic base has higher reliability and safety in engineering application prospects. In this paper, taking a UAV as the research object, the structure of the fluidlastic base is preliminarily designed in light of structure space of its main reduction system, and its dynamic equation is established according to the working principle of the fluidlastic base to deduce the force transmission rate expression. Finally, taking the minimum force transmission rate as the research target, sensitivity analysis of the structural parameters is carried out for the fluidlastic base, which provides an optimization method for the optimal design of the vibration isolator.
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