SLAMMING TESTS OF THREE-DIMENSIONAL MODELS IN CALM WATER AND WAVES

A prediction method is being developed at the Naval Ship Research and Development Center (NSRDC) for determining wave impact loads when a high-performance vehicle experiences slamming while traveling at very high speeds. This method is based on the Wagner wedge impact theory, the Chuang cone impact theory, and NSRDC drop tests of wedges and cones. Determination of impact velocity is based on the hypothesis that it is equal to the relative velocity between the impact surface of the moving body and the wave surface. As part of the development of this prediction method, slamming tests of three-dimensional models were conducted in calm water and waves, and the results were recorded during the time of impact when the model traveled with both horizontal and vertical velocities. The agreement between experimental and predicted results was remarkably good. The effect of elasticity on slamming was also investigated during the tests. As expected, results clearly indicated a reduction in impact pressure due to elasticity effect.

• Corporate Authors:

  Naval Ship Research and Development Center

  Structures Department
  Bethesda, MD  United States  20034
• Authors:
  • Chuang, S L
• Publication Date: 1973-9

Media Info

• Features: References;
• Pagination: 57 p.

Subject/Index Terms

• TRT Terms: Hulls; Impact; Impact loads; Pressure; Slamming
• Old TRIS Terms: Hull damage; Impact pressure
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00050494
• Record Type: Publication
• Source Agency: Naval Ship Research and Development Center
• Report/Paper Numbers: Report 4095
• Files: TRIS
• Created Date: Jan 4 1974 12:00AM