Mosikare, ORTheron, NJVan de Molen, W2010-12-202010-12-202010-09Mosikare, OR, Theron, NJ and Van de Molen, W. 2010. Measurements of boat motion in waves at Durban harbour for qualitative validation of motion model. 55th Annual Conference of the South African Institute of Physics (SAIP), CSIR International Convention Centre, Pretoria, 27 September-1 October 2010, pp 1http://hdl.handle.net/10204/467955th Annual Conference of the South African Institute of Physics (SAIP), CSIR International Convention Centre, Pretoria, 27 September-1 October 2010The Response Amplitude Operator (RAO) theory was used to develop a mathematical model of boat angular motion. Measurements were made on a harbour patrol boat on sea runs off Durban Harbour. Measurements were first calibrated for axis alignment and then analysed using power spectral density techniques. An estimated roll radius of gyration of 0.4 times the breadth of the vessel was used in the model. Comparison of the measurements to the model shows some correspondence in the frequencies present in the spectra. Discrepancies arise, however, in the spectral power values. The model could be improved by parameter optimisation.enResponse amplitude operatorBoat angular motionPower spectral density techniquesPhysicsSAIP Conference 2010Conference PresentationMosikare, O., Theron, N., & Van de Molen, W. (2010). Measurements of boat motion in waves at Durban harbour for qualitative validation of motion model. SAIP 2010. http://hdl.handle.net/10204/4679Mosikare, OR, NJ Theron, and W Van de Molen. "Measurements of boat motion in waves at Durban harbour for qualitative validation of motion model." (2010): http://hdl.handle.net/10204/4679Mosikare O, Theron N, Van de Molen W, Measurements of boat motion in waves at Durban harbour for qualitative validation of motion model; SAIP 2010; 2010. http://hdl.handle.net/10204/4679 .TY - Conference Presentation AU - Mosikare, OR AU - Theron, NJ AU - Van de Molen, W AB - The Response Amplitude Operator (RAO) theory was used to develop a mathematical model of boat angular motion. Measurements were made on a harbour patrol boat on sea runs off Durban Harbour. Measurements were first calibrated for axis alignment and then analysed using power spectral density techniques. An estimated roll radius of gyration of 0.4 times the breadth of the vessel was used in the model. Comparison of the measurements to the model shows some correspondence in the frequencies present in the spectra. Discrepancies arise, however, in the spectral power values. The model could be improved by parameter optimisation. DA - 2010-09 DB - ResearchSpace DP - CSIR KW - Response amplitude operator KW - Boat angular motion KW - Power spectral density techniques KW - Physics KW - SAIP Conference 2010 LK - https://researchspace.csir.co.za PY - 2010 T1 - Measurements of boat motion in waves at Durban harbour for qualitative validation of motion model TI - Measurements of boat motion in waves at Durban harbour for qualitative validation of motion model UR - http://hdl.handle.net/10204/4679 ER -