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Volume 23 Issue 6
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2015  >  23(6): 439-443
SONG Wen, LIANG Yue, GAO Ai-jun, LI Zhi-min, SUN Yan, BAI Yi ming. Vibration Control of Engine Support Structure Based on Modal Contribution Method[J]. Journal of Unmanned Undersea Systems, 2015, 23(6): 439-443. doi: 10.11993/j.issn.1673-1948.2015.06.009
Citation: SONG Wen, LIANG Yue, GAO Ai-jun, LI Zhi-min, SUN Yan, BAI Yi ming. Vibration Control of Engine Support Structure Based on Modal Contribution Method[J]. Journal of Unmanned Undersea Systems, 2015, 23(6): 439-443. doi: 10.11993/j.issn.1673-1948.2015.06.009
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Vibration Control of Engine Support Structure Based on Modal Contribution Method

doi: 10.11993/j.issn.1673-1948.2015.06.009
  • 1.

    The 705 Research Institute, China Shipbuilding Industry Corporation, Xi'an 710075, China

  • 2.

    Shanxi Pingyang Machinery Factory, Houma 043003, China

  • Publish Date: 2015-12-20
    Abstract
  • Based on modal contribution method, this paper proposes a vibration attenuation with damping technique to effectively control vibration response of a torpedo engine support structure. Firstly, the basic principle of modal contribution is explained. Then, the contributions of different-order modals of the engine support structure are calculated in the frequency range of 20~1000 Hz. Finally, a vibration control scheme of free damping layer is proposed according to the analysis of the contributions, and damping control is exerted on the predominant modal with greater contribution. Comparison between the conditions with and without the damping control shows that the damping vibration attenuation technique based on modal contribution method can effectively reduce the damping vibration of a torpedo engine support structure.

     

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    • References(5)
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