基于MFC的复合型仿生鱼尾的振动性能

Performance Research of Vibration About a Compound Biomimetic Caudal Finvia MFC

为了研制水下航行器来进行海洋探测,早期的研究以AUV为主,随着仿生学的出现,仿生水下推进器开始被研究,仿生鱼成为被研究的对象。为克服目前仿生鱼的固有缺陷,提出了一种复合型仿生鱼尾方案,选用驱动和基板材料分别为粗压电纤维复合材料(macro fiber composite,简称MFC)和特制的玻璃纤维增强型复合材料,两种各向异性材料结合能使鱼尾像鱼一样产生各种复杂的动作。首先,制备玻璃纤维增强型复合材料,并测量材料的性能;其次,搭建了实验系统进行鱼尾振动性能测试。实验发现,当施加峰峰值电压为700V、频率为9Hz时,末端最大弯曲位移为7.122mm,摆动角度达到28.37°。

In order to reveal the ocean mysterious veil,the researchers developed underwater vehicle for Marine detection.Early AUV was the main research.With the appearance of bionics,bionic underwater propeller began to be studied,so biomimetic fish was as object of the research object.To overcome the inherent defects of biomimetic fish,this paper puts forward a scheme of compound biomimetic fish.Macro fiber composite(abbr.MFC)and special glass fiber reinforced composite materials are chosen as the drive and substrate material,because this kind of caudal fin can take all sorts of complex actions as an actual fish.The composite materials are manufactured and their performances are measured.The experimental system is built and experiments of vibration are done.It is found that when the applied peak voltage is 350 V and the frequency is 9Hz,the maximum bending displacement of end of the caudal fin is 7.122mm,and the swing angle is 28.37°.