Design and Validation of Single-Axis 3D-Printed Force Sensor Based on Three Nested Flexible Rings

Author:

Yang Pengfei1ORCID,Xin Shiwei1,Mao Yuqing1,Dang Fei2,Huang Feng1

Affiliation:

1. School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China

2. College of Physics and Electronic Information Engineering, Minjiang University, Fuzhou 350108, China

Abstract

Force measurement is crucial in numerous engineering applications, while traditional force sensors often face problems such as elevated expenses or significant measurement errors. To tackle this issue, we propose an innovative force sensor employing three nested flexible rings fabricated through 3D additive manufacturing, which detects external forces through the displacement variations of flexible rings. An analytical model on the basis of the minimal energy method is developed to elucidate the force-displacement correlation with nonlinearity. Both FEM simulations and experiments verify the sensor’s effectiveness. This sensor has the advantages of low expenses and easy manufacture, indicating promising prospects in a range of applications, including robotics, the automotive industry, and iatrical equipment.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Fujian Province

Publisher

MDPI AG

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