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“Ride control of surface effect ships using distributed control”

Authors: Asgeir J. Sørensen and Olav Egeland,
Affiliation: ABB and NTNU, Department of Engineering Cybernetics
Reference: 1994, Vol 15, No 2, pp. 65-79.

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Keywords: SES, acoustic, ride control, passivity, full scale results

Abstract: A ride control system for active damping of heave and pitch accelerations of Surface Effect Ships (SES) is presented. It is demonstrated that distributed effects that are due to a spatially varying pressure in the air cushion result in significant vertical vibrations in low and moderate sea states. In order to achieve a high quality human comfort and crew workability it is necessary to reduce these vibrations using a control system which accounts for distributed effects due to spatial pressure variations in the air cushion. A mathematical model of the process is presented, and collocated sensor and actuator pairs are used. The process stability is ensured using a controller with appropriate passivity properties. Sensor and actuator location is also discussed. The performance of the ride control system is shown by power spectra of the vertical accelerations obtained from full scale experiments with a 35 m SES.

PDF PDF (1559 Kb)        DOI: 10.4173/mic.1994.2.1

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  title={{Ride control of surface effect ships using distributed control}},
  author={Sørensen, Asgeir J. and Egeland, Olav},
  journal={Modeling, Identification and Control},
  publisher={Norwegian Society of Automatic Control}


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