Journal
ISA TRANSACTIONS
Volume 70, Issue -, Pages 447-457Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.isatra.2017.07.008
Keywords
Parallel load sharing; Piezoelectric effect; Six-dimensional force sensor; Heavy force measurement; Self decoupling
Categories
Funding
- National Natural Science Foundation of China [51205165]
- Shandong Provincial Natural Science Foundation of China [ZR2015EL031]
- China Postdoctoral Science Foundation [2012M511758]
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This paper presents a novel integrated piezoelectric six-dimensional force sensor which can realize dynamic measurement of multi-dimensional space load. Firstly, the composition of the sensor, the spatial layout of force-sensitive components, and measurement principle are analyzed and designed. There is no interference of piezoelectric six-dimensional force sensor in theoretical analysis. Based on the principle of actual work and deformation compatibility coherence, this paper deduces the parallel load sharing principle of the piezoelectric six-dimensional force sensor. The main effect factors which affect the load sharing ratio are obtained. The finite element model of the piezoelectric six-dimensional force sensor is established. In order to verify the load sharing principle of the sensor, a load sharing test device of piezoelectric force sensor is designed and fabricated. The load sharing experimental platform is set up. The experimental results are in accordance with the theoretical analysis and simulation results. The experiments show that the multi-dimensional and heavy force measurement can be realized by the parallel arrangement of the load sharing ring and the force sensitive element in the novel integrated piezoelectric six-dimensional force sensor. The ideal load sharing effect of the sensor can be achieved by appropriate size parameters. This paper has an important guide for the design of the force measuring device according to the load sharing mode. (C) 2017 ISA. Published by Elsevier Ltd. All rights reserved.
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