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Open AccessArticle

A Novel Model to Simulate Flexural Complements in Compliant Sensor Systems

1
School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
2
Lassonde School of Engineering, York University, Toronto, ON M3J 1P3, Canada
*
Author to whom correspondence should be addressed.
Sensors 2018, 18(4), 1029; https://doi.org/10.3390/s18041029
Received: 10 January 2018 / Revised: 15 March 2018 / Accepted: 27 March 2018 / Published: 29 March 2018
(This article belongs to the Special Issue Sensors for MEMS and Microsystems)
The main challenge in analyzing compliant sensor systems is how to calculate the large deformation of flexural complements. Our study proposes a new model that is called the spline pseudo-rigid-body model (spline PRBM). It combines dynamic spline and the pseudo-rigid-body model (PRBM) to simulate the flexural complements. The axial deformations of flexural complements are modeled by using dynamic spline. This makes it possible to consider the nonlinear compliance of the system using four control points. Three rigid rods connected by two revolute (R) pins with two torsion springs replace the three lines connecting the four control points. The kinematic behavior of the system is described using Lagrange equations. Both the optimization and the numerical fitting methods are used for resolving the characteristic parameters of the new model. An example is given of a compliant mechanism to modify the accuracy of the model. The spline PRBM is important in expanding the applications of the PRBM to the design and simulation of flexural force sensors. View Full-Text
Keywords: dynamic spline pseudo-rigid-body model; flexural beam; force sensor; compliant mechanisms; large deflection dynamic spline pseudo-rigid-body model; flexural beam; force sensor; compliant mechanisms; large deflection
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MDPI and ACS Style

Tang, H.; Zhang, D.; Guo, S.; Qu, H. A Novel Model to Simulate Flexural Complements in Compliant Sensor Systems. Sensors 2018, 18, 1029.

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