华中科技大学学报（自然科学版）2024，Vol.52Issue(12)：45-52,8.DOI:10.13245/j.hust.241205
往复正推矢量推进器设计及动力学模型仿真分析
Design and dynamic model simulation analysis of reciprocating forward thrust vector propeller
摘要
Abstract
A novel reciprocating thrust vectoring propulsion form based on a passive folding mechanism was proposed to improve the propulsion efficiency of underwater propellers,which eliminated the transverse induced energy loss and increased the propulsion efficiency to 73.8％.The propulsion form was combined with a 4-PRU parallel mechanism to design a vector underwater propeller that could achieve propulsion and steering coupling.The degree of freedom of the 4-PRU parallel mechanism was analyzed by using screw theory,and it was proved that it could meet the requirements of propulsion and steering of underwater propellers.A dynamic model of the underwater propeller was established,and the optimal propulsion speed curve under different operating speeds was obtained with the maximum propulsion efficiency as the optimization objective.The reliability of the dynamic model was verified by Ansys fluid-solid coupling simulation analysis.关键词
水下推进器/推进效率/矢量推进/横向诱导速度/计算流体动力学仿真Key words
underwater propeller/propulsion efficiency/vector propulsion/transverse induced velocity/computational fluid dynamics simulation分类
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宋智斌,武一帆,康荣杰,戴建生..往复正推矢量推进器设计及动力学模型仿真分析[J].华中科技大学学报（自然科学版）,2024,52(12):45-52,8.基金项目
国家自然科学基金面上项目(51975401) （51975401）
国家自然科学基金创新研究群体项目(51721003). （51721003）
