SES DYNAMICS IN THE VERTICAL PLANE

The dynamic response of Surface Effect Ships (SES) advancing at high speed in waves is studied. The results show dominating vertical accelerations in a frequency range of importance for passenger comfort and crew workability. These vibrations are analysed using a mathematical model for the air cushion. It accounts for the motions and accelerations in heave and pitch induced by both the dynamic uniform and the spatially varying air cushion pressure. The latter is described by a modal representation. High ride quality can be achieved by compensating for these vibrations using a ride control system. Based on a mathematical model of such a system it is shown that optimal placement of the fan and the rider control system gives a significant improvement in ride quality.

• Supplemental Notes:
  • Ship Technology Res, v 40 n 2, May 1993, p 57 [24 p, 21 ref, 17 fig]
• Authors:
  • Sorensen, A J
  • Steen, S
  • Faltinsen, O M
• Publication Date: 1993

Language

• English

Subject/Index Terms

• TRT Terms: Dynamic loads; Mathematical models; Passenger comfort; Seakeeping; Surface effect ships
• Uncontrolled Terms: Dynamic response
• Old TRIS Terms: Ride comfort
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00705409
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM