Experimental investigations on the strategies of fighting crickets Velarifictorus micado to manipulate air resistance

作     者：Yun Xing JiaLing Yang Yun Xing;JiaLing Yang

作者机构：Institute of Solid MechanicsBeihang UniversityBeijing 100191China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2020年第63卷第6期

页      面：54-65页

核心收录：

学科分类：08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.11032001) 

主　　题：aerial movement air resistance robot designs energy dissipation 

摘      要：Fighting crickets,one species of flightless insects optimally chosen by nature for millions of years,have evolved to fairly smooth and streamlined body *** article tries to answer the question how the insects manipulate air resistance when travelling through air after take-off without using their wings and meanwhile keep a high *** found that fighting crickets,Velarifictorus micado,performed two types of movements through air:stable and *** two types both have a high moving *** the stable type,the moving efficiency is larger than 95%.As a typical example,focusing on the stable type,we firstly predicted each component of aerodynamic drag applied on the crickets and analysed the drag contributions to the initial kinetic energy *** investigation revealed the mechanisms of the efficiently moving strategy against air resistance for the *** results show that the crickets can spin their hind legs to adjust body posture,thereby changing(increasing or decreasing)the air drag acting on the body to raise the efficiency during aerial *** work may advance the understanding of the significance of hind legs to insects’evolution and provide inspiration for future robot or micro aerial vehicle designs.