PRELIMINARY ASSESSMENT OF LIGHTER DAMPING AUGMENTATION IN HEAVE FOR REDUCTION OF RELATIVE MOTION

The concept of augmenting the inherent damping of a lighter hull to suppress its heave response in waves, and thereby to reduce relative motion between a cargo ship and lighter is the subject of investigation. The scope of the effort was a minimum one to rapidly assess the promise of the concept. A primarily empirical approach was taken. Sufficient analysis was included to interpret the test results and to consider the implications of the results in full scale. Model tests were performed in a model basin with wave making facility. The model consisted of a one-sixth scale hull for a 45 ft. long patrol boat with its damping appendage slats, one or two high, longitudinally aligned on either side. (Author Modified Abstract)

• Corporate Authors:

  Control Systems Research Inc

  ,    
• Authors:
  • BERGER, S
• Publication Date: 1972-7

Media Info

• Pagination: 37 p.

Subject/Index Terms

• TRT Terms: Barges; Damping (Engineering); Damping (Physics); Ship motion
• Uncontrolled Terms: Heaving
• Old TRIS Terms: Heave damping; Lighters
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00044654
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: CSR-339 Final Rpt
• Contract Numbers: N00025-72-C-0044
• Files: TRIS
• Created Date: Jul 31 1973 12:00AM