DocumentCode :
2508176
Title :
Towards a biologically inspired small-scale water jumping robot
Author :
Shin, Bongsu ; Kim, Ho-Young ; Cho, Kyu-Jin
Author_Institution :
Sch. of Mech. & Aerosp. Eng., Seoul Nat. Univ., Seoul
fYear :
2008
fDate :
19-22 Oct. 2008
Firstpage :
127
Lastpage :
131
Abstract :
This paper describes the locomotion of a water jumping robot which emulates the ability of the water strider and the fishing spider to jump on the water surface. While previous studies of the robots mimicking aquatic arthropods were focused on recreating their horizontal skating motions, here we aim to achieve a vertical jumping motion. The robot jumps by pushing the water surface with rapidly released legs which were initially bent. The motion is triggered with a latch driven by the shape memory alloy actuator. The robot is capable of jumping to the maximum height of 26 mm. Jumping efficiency, defined as the ratio of the maximum jumping height on water to that on rigid ground, of a currently developed model is 0.26. This work represents a first step toward robots that can locomote on water with superior versatility including skating and jumping.
Keywords :
biomechanics; biomimetics; robot kinematics; shape memory effects; aquatic arthropods; biologically inspired robot; fishing spider; horizontal skating motion; locomotion; shape memory alloy actuator; vertical jumping motion; water jumping robot; water strider; Biomechatronics; Hydrodynamics; Insects; Leg; Legged locomotion; Robots; Shape memory alloys; Surface tension; Viscosity; Water;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Robotics and Biomechatronics, 2008. BioRob 2008. 2nd IEEE RAS & EMBS International Conference on
Conference_Location :
Scottsdale, AZ
Print_ISBN :
978-1-4244-2882-3
Electronic_ISBN :
978-1-4244-2883-0
Type :
conf
DOI :
10.1109/BIOROB.2008.4762896
Filename :
4762896
Link To Document :
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