Dr. Bingqing Shi Profile

Dr. Bingqing Shi

at Wuhan Univ of Technology

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Proceedings Article | 10 February 2017 Paper

Research on modeling and identification for GMA based on Bragg grating sensors

Bingqing Shi, Ping Han, Quan Liu

Proceedings Volume 10250, 1025026 (2017) https://doi.org/10.1117/12.2267054

KEYWORDS: Sensors, Fiber Bragg gratings

Read Abstract +

In this paper, a new means of measuring the displacement of GMA (Giant Magnetostrictive Actuator) based on FGB (Fiber Bragg Grating) sensor is proposed, experimental results confirmed that FGB sensor can measure the displacement of GMA in different frequencies and achieve good results. In addition a modified Bouc-Wen model is presented to describe the GMA, the proposed model can describe the asymmetric hysteresis of GMA from 1 Hz to 100 Hz well, and DE(Differential Evolution) algorithm is used for adaptive identification of the GMA system, the algorithm has fast convergence and high accuracy. Finally, it verifies that the identification model fits the experimental data well.

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