半转叶轮仿生推进器的实验研究

The Experimental Study of Half-rotating Biological Propeller

半转叶轮仿生推进器是基于半转机构实现Weis-Fogh效应仿生原理的新型船舶推进器,其推进原理不同于普通的螺旋桨,为探求其工作特性及推进力和推进效率等参数,设计了合理的试验方案进行模型试验研究。试验数据由数据采集卡NI DAQPad-6020E采集,并用Matlab软件进行处理和分析。结果表明,当叶片与固壁之间的间隙为11cm、吃水深度为30cm、电动机的输入频率为50Hz时,推进效率最高,推力最大,具有明显的优点。

A new type of liquid propeller named half-rotating biological propeller is based on principle of Weis-Fogh effect realized by half-rotating mechanism,and it's different from ordinary propeller. A model experiment was essential to study thoroughly the ways of operation,how much force it can bring out and propulsive efficiency etc. A reasonable model experiment was planned. The experiment data,which were acquired through data acquisition card NI DAQPad-6020E,were processed and analyzed by Matlab Software. The conclusion shows that the highest propulsive efficiency adds up to 70.5%,the mean propulsive efficiency is about 51% when the space between the blade and fixed flat is 11cm,the depth of blade under the water is 30cm,and the input frequency of motor is 50Hz.