Dynamic Characteristics of Simple Cylindrical Hydraulic Engine Mount Utilizing Air Compressibility
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概要
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A cylindrical hydraulic engine mount with simple construction has been developed. This engine mount has a sub chamber formed by utilizing air compressibility without a diaphragm. A mathematical model of the mount is presented to predict non-linear dynamic characteristics in consideration of the effect of the excitation amplitude on the storage stiffness and loss factor. The mathematical model predicts experimental results well for the frequency responses of the storage stiffness and loss factor over the frequency range of 5 Hz to 60Hz. The effect of air volume and internal pressure on the dynamic characteristics is clarified by the analysis and dynamic characterization testing. The effectiveness of the cylindrical hydraulic engine mount on the reduction of engine shake is demonstrated for riding comfort through on-vehicle testing with a chassis dynamometer.
著者
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Ohta Katsutoshi
Kurashiki Kako Co. Ltd.
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Nakahara Kazunari
Graduate School Of Engineering Hiroshima University
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Nakagawa Noritoshi
Department Of Mechanical Engineering Hiroshima University
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