| Summary: | 碩士 === 國立成功大學 === 系統及船舶機電工程學系碩博士班 === 92 === The objective of this thesis is to study the dynamic analysis of piston- type hydraulic engine mount, this engine mount consists of cylinder, two pistons, bar, two chambers, disk, diaphragm and two springs and damper on the bottom. Compared with traditional rubber engine mount, the advantages of this piston-type engine mount are longer fatigue life and bigger loading bearing. The point of the article including the vibration reduction of engine mount by engine exciting force and the transmissibility by base exciting.In this article, we use Lagrange’s equation to derive the equation of motion, and derive the dynamic responses of the engine mount by exact solution and numerical solution. The influences of dynamic characteristics by some parameters are also studied:spring constant, damping coefficient, piston diameter, orifice diameter, thickness of the disk, kinematic viscosity of the fluid.
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