首页|Switchable shape memory polymer bio-inspired adhesive and its application for unmanned aerial vehicle landing
Switchable shape memory polymer bio-inspired adhesive and its application for unmanned aerial vehicle landing
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Controlled and switchable adhesion is commonly observed in biological systems.In recent years,many scholars have focused on making switchable bio-inspired adhesives.However,making a bio-inspired adhesive with high adhesion performance and excellent dynamic switching properties is still a challenge.A Shape Memory Polymer Bio-inspired Adhesive(SMPBA)was suc-cessfully developed,well realizing high adhesion(about 337 kPa),relatively low preload(about 90 kPa),high adhesion-to-preload ratio(about 3.74),high switching ratio(about 6.74),and easy detachment,which are attributed to the controlled modulus and contact area by regulating temper-ature and the Shape Memory Effect(SME).Furthermore,SMPBA exhibits adhesion strength of 80-337 kPa on various surfaces(silicon,iron,and aluminum)with different roughness(Ra=0.021-10.280)because of the conformal contact,reflecting outstanding surface adaptability.The finite element analysis verifies the bending ability under different temperatures,while the adhesion model analyzes the influence of preload on contact area and adhesion.Furthermore,an Unmanned Aerial Vehicle(UAV)landing device with SMPBA was designed and manufactured to achieve UAV landing on and detaching from various surfaces.This study provides a novel switchable bio-inspired adhesive and UAV landing method.
Jiangsu Provincial Key Laboratory of Bionic Functional Materials,College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
Key Laboratory of Advanced Technology for Small and Medium-Sized UAV,Ministry of Industry and Information Technology,Unmanned Aerial Vehicles Research Institute,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
State Key Laboratory of Mechanics and Control of Aerospace Structures,Nanjing University of A
Functional Morphology and Biomechanics,Institute of Zoology,Kiel University,Kiel 24098,Germany
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国家自然科学基金Jiangsu Province Natural Science Foundation,ChinaPostgraduate Research and Practice Innovation Program of Nanjing University of Aeronautics and Astronautics,China中央高校基本科研业务费专项
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