Design and Experiment of a Bionic Gannet for Plunge-Diving  

作　　者：Jianhong Liang Xingbang Yang Tianmiao Wang Guocai Yao Wendi Zhao 

机构地区：[1]Institute of Robotics, Beihang University, Beijing 100191, P. R. China

出　　处：《Journal of Bionic Engineering》2013年第3期282-291,共10页仿生工程学报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China （Grant no. 51005008）.

摘　　要：A bionic gannet was developed based on the analysis of the body configuration and skeleton structure and the motion pattern of wings of a gannet in plunge-diving. In the current prototype, adjustable sweptback wings were implemented so as to achieve different body shapes for entering water. The impact acceleration in the longitudinal body axis direction and the axial overload on the body were investigated through the falling-down experiments under different conditions including dropping height, water-entry inclination angle, and wing sweptback angle. It is found that when the above three key parameters are 10 m for dropping height, 0° for wing sweptback angle, and 90° for water-entry inclination angle, the maximum peak impact acceleration and overload are -167.20 m.s-2 and 18.06 respectively. Furthermore, the variation of peak impact acceleration with the three key parameters were also analyzed and discussed.A bionic gannet was developed based on the analysis of the body configuration and skeleton structure and the motion pattern of wings of a gannet in plunge-diving. In the current prototype, adjustable sweptback wings were implemented so as to achieve different body shapes for entering water. The impact acceleration in the longitudinal body axis direction and the axial overload on the body were investigated through the falling-down experiments under different conditions including dropping height, water-entry inclination angle, and wing sweptback angle. It is found that when the above three key parameters are 10 m for dropping height, 0° for wing sweptback angle, and 90° for water-entry inclination angle, the maximum peak impact acceleration and overload are -167.20 m.s-2 and 18.06 respectively. Furthermore, the variation of peak impact acceleration with the three key parameters were also analyzed and discussed.

关 键 词：bionic gannet plunge-diving peak impact acceleration inclination angle sweepback dropping height 

分 类 号：V271.492[航空宇航科学与技术—飞行器设计] TB21[一般工业技术—工程设计测绘]