RESEARCH ON THE MOTION RESPONSE OF AQUACULTURESHIP AND TANK SLOSHING UNDER ROLLING RESONANCE

[摘要] The double-row and double-chamfered aquaculture tank is a special tank structure ofthe aquaculture ship. The tank sloshing of this structure is coupled with the hull motion,which has an important impact on the safety of the hull motion. In the present study, researchon the tank sloshing and hull motion response of aquaculture ships was conducted based onthe model seakeeping and tank sloshing tests in regular waves. The test results were comparedwith the numerical simulation results of solid loading without sloshing. The results showedthat the numerical simulation of the pitch motion was consistent with the amplitude-frequencyresponse curve of the experimental results. Under certain transverse wave conditions, a largediscrepancy existed between the amplitude-frequency response curve of the heave motion bythe numerical simulation and the test results, and the roll motion differed most from theexperimental result. Severe roll resonance occurred when the wave length-ship length ratiowas 0.6. The roll motion amplitude was increased by 183.2%. Therefore, compared withaquaculture ships without sloshing, the sloshing of the tank has little effect on the pitch buthas a great impact on the roll and heave motions, with the most significant effect on the rollmotion.

[学科分类] 工程和技术（综合）

[关键词] Aquaculture ships;Tank sloshing;Ship motion;Roll resonance