Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (10): 1461-1466.DOI: 10.12068/j.issn.1005-3026.2019.10.017

• Mechanical Engineering • Previous Articles     Next Articles

Design and Analysis of Fiber-Reinforced Three-Cavity Structure of Soft Robot Hands

FENG Nai-shi, WANG Hong, HU Fo, LI Kang   

  1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2019-01-04 Revised:2019-01-04 Online:2019-10-15 Published:2019-10-10
  • Contact: WANG Hong
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Abstract: Based on the three-knuckle structure of a human hand, a fiber-reinforced three-cavity human-like soft body manipulator and a new type of pipe-laying method were proposed. The mathematical model of large deformation of the soft manipulator with a single finger was established by using Neo Hookean model. The deformation characteristics of the single-finger of the soft manipulator were analyzed, and the bending model and the torsion model were established. A 1∶1 mixture of Ecoflex 00-50 and Dragon skin 30 was used to make soft fingers, and the error correction of the theoretical model was carried out with the test data. The results showed that the theoretical model of the proposed new soft finger structure is consistent with the actual measurement data. Compared with the other structures, the new pipe-laying method increases the overall stability, and the conclusions can provide theoretical support for the development of human-like soft body manipulators.

Key words: soft robot, fiber-reinforced, three-cavity, finite element analysis, sensor

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