Adaptive vibration isolation system for diesel engine |
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Authors: | Yang Tie-jun Zhang Xin-yu Xiao You-hong Huang Jin-e Liu Zhi-gang |
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Institution: | (1) School of Power and Nuclear Engineering College, Harbin Engineering University, 150001 Harbin, China;(2) Institute of Naval Vessels, Naval Academy of Armament, 150001 Beijing, China |
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Abstract: | An active two-stage isolation mounting, on which servo-hydraulic system is used as the actuator (secondary vibration source)
and a diesel engine is used as primary vibration source, has been built. The upper mass of the mounting is composed of a 495
diesel and an electrical eddy current dynamometer. The lower mass is divided into four small masses to which servo-hydraulic
actuator and rubber isolators are attached. According to the periodical characteristics of diesel vibration signals, a multi-point
adaptive strategy based on adaptive comb filtered algorithm is applied to active multi-direction coupled vibrations control
for the engine. The experimental results demonstrate that a good suppression in the effective range of phase compensation
in secondary path (within 100Hz) at different operation conditions is achieved, and verify that this strategy is effective.
The features of the active system, the development activities carried out on the system and experimental results are discussed
in the paper. |
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Keywords: | diesel active vibration isolation active multi-direction coupled vibrations control servo-hydraulic actuator |
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