APPLICATION OF ACTIVE VIBRATION ISOLATING SYSTEM TO DIESEL ENGINE MOUNTING

Following a long-term investigation of various engine mounting systems, the authors have developed the "Active Vibration Isolating System," a damping system that provides an effective isolation between the engine and its seating. Initially tested on the University of Kobe ship FUKAE MARU III, this isolator system uses a computer-controlled hydraulic actuator that responds to vibration and generates a movement that neutralizes the unwanted forces. As a result, the vibration at the lower rubber seating theoretically reduces to zero at a specified engine revolution frequency. Based on the results obtained from the test apparatus and simulations, the vibration isolator system was redesigned and improved, and its effectiveness was confirmed by a significant reduction of 20 dB in vibration level under the bridge with the engine operating at fundamental frequencies.

Media Info

  • Features: References;
  • Pagination: 20p.

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Filing Info

  • Accession Number: 00660615
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM