Traditional manned planing crafts may present a high risk to crew onboard when operated in harsh and hostile environments. Consequently, the use of unmanned, Autonomous high-speed Planing Crafts (APCs) is a promising alternative for fast operations in littoral, confined and dangerous waters. However, ensuring the seaworthiness of these crafts, presents a significant challenge, particularly in regard to large vertical motions developed in a seaway which pose a hazard to payload and to the craft’s structural integrity. Therefore, a real time prediction and estimation of vertical accelerations in waves and a control system to set the craft's forward speed is considered as an essential requirement for safety operation of APCs in seaways. In the present study, a system to enhance the seaworthiness of APCs by employing an autonomous speed setting mechanism as response to the predicted APC behavior when operating in seaways is developed. The system employs an embedded analytical tool termed Motion Assessment of Planing Craft in a Seaway (MAPCS) for the prediction of vertical accelerations the crafts might encounter to the incoming waves. Information on the characteristics of those waves is provided by a dedicated vision system. The complete development of the vision-aided speed modulation system (VSMS) for the APCs' autonomous navigation and its test results are presented.
|Title of host publication||RINA, Royal Institution of Naval Architects - 6th International Conference on Ship and Offshore Technology, Papers|
|Publisher||Royal Institution of Naval Architects|
|Number of pages||8|
|State||Published - 2019|
|Event||RINA, Royal Institution of Naval Architects - 6th International Conference on Ship and Offshore Technology, ICSOT-INDIA 2019 - Kharagpur, India|
Duration: 7 Nov 2019 → 8 Nov 2019
|Name||RINA, Royal Institution of Naval Architects - 6th International Conference on Ship and Offshore Technology, Papers|
|Conference||RINA, Royal Institution of Naval Architects - 6th International Conference on Ship and Offshore Technology, ICSOT-INDIA 2019|
|Period||7/11/19 → 8/11/19|
Bibliographical noteFunding Information:
This study was supported by the Leona M. and Harry B. Helmsley Charitable Trust, the Maurice Hatter Foundation, and the Paul Amir Foundation. Research at the University of Haifa was conducted at the Hatter Department of Marine Technologies in the Sub Sea Engineering Lab. The authors are grateful to the Israel Shipyards Ltd. for providing an opportunity to conduct experiments on a Shaldag MK II class fast patrol boat. The authors also thank the Coastal and Marine Engineering Research Institute for providing real sea wave elevation data.
© 2019: The Royal Institution of Naval Architects.
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality
- Ocean Engineering
- Mechanical Engineering