| Citation: | GU Sucheng, WANG Baoxing, LIU Juncheng, et al. Deformation and end contact force of fiber-reinforced soft gripper[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(2): 447-456. doi: 10.13700/j.bh.1001-5965.2019.0251(in Chinese)
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In order to solve the problem of lacking the research on the deformation and end contact force of soft robotics, a soft gripper is taken as the research object, and the research on the deformation and end contact force of fiber-reinforced soft gripper is carried out. Firstly, a soft pneumatic gripper is designed, which is composed of a unidirectional bending drive with a fiber-reinforced structure, an axially elongated contact airbag and a unitary connecting device. Secondly, a nonlinear mathematical model of curved center angle of a soft drive actuated by specific pressure is established, which is based on the Yeoh model. Based on the Neo-Hookean model, the theoretical model of the end contact force of the bending actuator is established. Then, a finite element simulation and experimental validation of the soft gripper are carried out to verify the correctness of the theoretical model. Finally, the study on the effect of fiber-reinforced structure on the deformation and end contact force of gripper is carried out. Experimental results show that fiber-reinforced structure can improve the deformation and end contact force of the soft gripper greatly. This research provides a theoretical basis for the research on the deformation and end contact force of other fiber-reinforced soft grippers.
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