REAL TIME PREDICTION OF SHIP MOTION USING A WAVE SENSOR

The author is testing the validity (accuracy) of a real-time ship motion prediction algorithm. It uses a statistical method of determining the relationship between wave and ship motion time histories. Once the relationship is determined a real time prediction of ship response can be easily calculated. The author is testing the feasibility of using a micro-computer system to produce real time predictions. Preliminary results of testing on one platform (KAIMALINO) indicate good forecasts of amplitude and phase, 2-4 seconds in the future and good forecasts of phase 8 seconds in the future. Primary applications of 2-4 second forecasts are in active motion compensation equipment and automatic carrier landing systems. It can reduce power requirements and thereby size and cost of motion compensators. It can produce much smoother and more precise landings than the existing carrier landing system. Data has been gathered from the Semi-Submerged Platform KAIMALINO, a Navy barge, and the ATS BRUNSWICK

• Supplemental Notes:
  • Paper presented March 1980 to the Hawaii Section, SNAME.
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Yumori, R
• Publication Date: 1980

Media Info

• Features: References;
• Pagination: n.p.

Subject/Index Terms

• TRT Terms: Measuring instruments; Microprocessors; Ship motion; Transducers; Wave measurement; Wave motion
• Old TRIS Terms: Microprocessor applications; Ship response
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00316617
• Record Type: Publication
• Report/Paper Numbers: Conf Paper
• Files: TRIS
• Created Date: Sep 16 1980 12:00AM