Experimental determination of the Young's modulus for the fingers with application in prehension systems for small cylindrical objects

7th International Conference on Advanced Concepts in Mechanical Engineering

Oprian, C.^1 ; Cârlescu, V.^1 ; Barnea, A.^1 ; Prisacaru, Gh.^1 ; Olaru, D.N.^1 ; Plesu, Gh.^2

Mechanical Engineering, Mechatronics and Robotics Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^1

Machine-Tools Department, Gheorghe Asachi Technical University of Iasi, Iasi, Romania^2

关键词: Cylindrical objects;    Experimental curves;    Experimental determination;    Human fingers;    Index finger;    Plane surfaces;    Steel cylinders;    To curve;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/147/1/012058/pdf
DOI  :  10.1088/1757-899X/147/1/012058

来源: IOP

【 摘 要 】

A new methodology to determine experimentally the Young's modulus of the human fingers has been developed by the authors. The methodology consist in the experimentally variation of the elastic deformation for the finger in contact with a steel cylinder normal loaded from zero to 10 N. The Hertzian model for elastic deformation specific to a point contact between a cylindrical object and the index finger has been used to curve fitting the experimental curve for elastic deformation of the finger in the vicinity of imposed forces from 0.5N to 10 N. Values between 0.07 MPa and 0.2 MPa for Young's modulus of the finger have been obtained, in agreement with the values determined by the other authors using ball finger contacts or finger plane surface contacts.