摘要
为探究扑翼自身刚度和运动参数对其水动力特性的影响,依托仿生扑翼推进试验平台,实现扑翼的俯仰-升沉结合运动.使用六轴力/力矩传感器记录扑翼运动过程中的力学参数,同时利用高速相机记录扑翼运动情况;对力学数据进行均值化及归一化处理得出扑翼水动力特性随刚度及运动参数的变化规律;对图像进行处理,绘制出扑翼尾端点运动轨迹.试验结果表明:低刚度扑翼在低频下推力表现优异;扑翼刚度对推力稳定性起着重要作用;扑翼运动轨迹随着刚度增加,从杂乱无章演变为8字形,最终演变为弧线形.
To investigate the influence of flapping foils’stiffness and motion parameters on its hydrodynamic characteristics,relying on the bionic flapping foil propulsion test platform,the combination of pitching motion and heaving motion of the foils was realized.A six-axis force/moment sensor was used to record the mechanical parameters during the motion,and a high-speed camera was used to record the motion.The mechanical data were homogenized and normalized to obtain the variation law of the hydrodynamic characteristics of the foils with stiffness and motion parameters.The images were also processed to plot the motion trajectory of the tail end point of the foil.Experimental results show that the low stiffness flapping foil has excellent thrust performance at low frequencies;a foil’s stiffness plays an essential role in thrust stability,and the motion trajectory of flap foil changes from haphazard to a figure 8 shape and eventually into an arc as the stiffness increases.
作者
高鹏骋
黄桥高
潘光
赵嘉祯
GAO Pengcheng;HUANG Qiaogao;PAN Guang;ZHAO Jiazhen(School of Marine Science and Technology,Northwestern Polytechnical University,Xi’an 710072,China;Key Laboratory of Unmanned Underwater Vehicle Technology of Ministry of Industry and Information Technology,Northwestern Polytechnical University,Xi’an 710072,China)
出处
《华中科技大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2022年第1期144-148,共5页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(51879220)
国家重点研发计划资助项目(2020YFB1313201)
中央高校基本科研业务费专项资金资助项目(3102019HHZY030019,3102020HHZY030018)。
关键词
柔性扑翼
水动力特性
运动参数
推力稳定性
运动轨迹
flexible flapping foil
hydrodynamic characteristic
motion parameter
thrust stability
motion trajectory
