基于Weis-Fogh机构的零航速减摇鳍升力特性研究  

Investigation of the lifting force of a zero speed fin stabilizer with Weis-Fogh mechanism

作　　者：金鸿章[1] 罗延明[1] 綦志刚[1] 杨洲城[1] 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2007年第7期762-767,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金资助项目(50575048)

摘　　要：为了克服传统减摇鳍只能在有航速情况下进行减摇的缺点,该文提出了一种基于Weis-Fogh机构的零航速减摇鳍.通过对Weis-Fogh机构原理与流体特性的深入研究,从理论上推导出平板翼的升力表达式,确定了升力与旋转角速度及角加速度之间的函数关系.在Matlab/Simulink环境下,建立了平板翼的升力模型,完成了平板翼在各种运动规律下的升力仿真实验.仿真结果证明,这种新型的减摇鳍能够在零航速下瞬间产生巨大升力,通过控制翼的旋转角速度及角加速度能够控制升力的大小及建立的时间,验证了采用Weis-Fogh机构设计零航速减摇鳍的可行性.The traditional fin stabilizer can only operate when the speed of the ship is not null. To overcome this limitation, this paper proposes a zero-speed fin stabilizer based on the Weis-Fogh mechanism. After studying the liquid characteristics and principles of the Weis-Fogh mechanism, the equation of lifting force for a flat wing was derived, and a function for lifting force in terms of rotational angular velocity and angular acceleration was determined. Using the Matlab/Simulink environment, a model of lifting force for a flat wing was built and experiments were simulated with respect to various modes of motion. The simulation results concluded that the new fin stabilizer can produce huge lift at zero speed. The magnitude of the lifting force and the time needed to generate the lifting force can be controlled by angular rotational speed and angular acceleration. This shows that the proposed zerospeed fin stabilizer based on the Weis-Fogh mechanism is feasible in practice.

关 键 词：减摇鳍 零航速 Weis-Fogh 平板翼 

分 类 号：U664.7[交通运输工程—船舶及航道工程]