• Title/Summary/Keyword: Active Engine Mount

Search Result 34, Processing Time 0.019 seconds

Experimental Investigation on Vibration Control Performances of the Piezoelectric Hybrid Mount (압전 하이브리드 마운트의 진동제어 성능에 대한 실험적 고찰)

  • Han, Young-Min
    • Journal of the Korea Convergence Society
    • /
    • v.11 no.11
    • /
    • pp.203-209
    • /
    • 2020

  • A hybrid mount featuring rubber element and piezoelectric actuator is devised to reduce vibration when starting a vehicle engine. As a first step, a passive mount adopting rubber element is manufactured and its dynamic characteristics are experimentally evaluated. After evaluating dynamic characteristics of the manufactured inertial piezoelectric actuator, the proposed hybrid mount is then established by integrating the piezoelectric actuator with the rubber element for performance improvement at non-resonant high frequencies. A mathematical model of the established active vibration control system is formulated and expressed in the state space form. Subsequently, sliding mode controller (SMC) is designed to attenuate the vibration transmitted from the base excitation. Finally, control performances of the proposed hybrid mount are evaluated such as transmissibility in frequency domain and time responses.

  • https://doi.org/10.15207/JKCS.2020.11.11.203 인용 PDF KSCI

The Effect of Active Chassis Vibration Control on the Engine Booming Noise (능동 샤시 진동 제어가 실내 엔진 부밍 소음에 미치는 영향)

  • 정병보;박만복;이용욱;박영진;이종원;강구태;채창국
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
    • /
    • 2002.05a
    • /
    • pp.991-995
    • /
    • 2002

  • The engine booming noise heard inside a vehicle's cabin is due to the engine vibration that's transferred to the chassis in the form of structural vibration and it often causes discomfort to the passenger. In an effort to seek out the possible relation between the engine booming noise and the engine vibration of a vehicle, a position on the engine mount was selected and the vibration transmission through the position was attenuated to observe the corresponding change in the noise level inside the cabin. A system consisting of an actuator and a hybrid controller that has both the feed-forward and feed-back capabilities was developed in order to carry out the experiment.

  • PDF