An Algorithm of Dynamic Load Identification Based on FBG Sensor and Kalman Filter

Xuegang Song; Peng Liu; Zhuming Cheng; Zhen Wei; Junsong Yu; Jiwei Huang; Dakai Liang

doi:10.3788/AOS201838.0328012

Acta Optica Sinica, Volume. 38, Issue 3, 328012(2018)

An Algorithm of Dynamic Load Identification Based on FBG Sensor and Kalman Filter

Xuegang Song, Peng Liu, Zhuming Cheng, Zhen Wei, Junsong Yu, Jiwei Huang, and Dakai Liang^*

State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, Jiangsu 210016, China

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Figures & Tables(8)

Fig. 1. Schematic of principle of FBG sensor

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Fig. 2. Identification results of sinusoidal load, square load, and triangular load under the conditions of Qw=1×10-8, σ=1×10-16, and 1 Hz

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Fig. 3. Identification results of sinusoidal load, rectangular load, and triangular load under the conditions of Qw=1×10-6, σ=1×10-12, 1 Hz

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Fig. 4. Experimental setup

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Fig. 5. Identification results of the sinusoidal load with different frequencies. (a) 1 Hz; (b) 5 Hz

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Table 1. Model parameters
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Table 1. Model parameters
Bernoulli-Euler beam Value
Density /(kg·m^-3) 2690
Elastic modulus /GPa 68.9
Length /m 0.640
Width /m 0.030
Thick /m 0.003

Table 2. Identification errors of loads under the conditions of Qw=1×10-8 and σ=1×10-16
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Table 2. Identification errors of loads under the conditions of Qw=1×10-8 and σ=1×10-16
Errors Sinusoidal load Rectangular load Triangular load
Mean/% 0.139 0.273 0.065
RMSE 0.283 0.781 1.374

Table 3. Identification errors of loads under the conditions of Qw=1×10-6 and σ=1×10-12
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Table 3. Identification errors of loads under the conditions of Qw=1×10-6 and σ=1×10-12
Errors Sinusoidal load Rectangular load Triangular load
Mean /% 0.139 0.273 0.065
RMSE 0.283 0.781 1.374

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Xuegang Song, Peng Liu, Zhuming Cheng, Zhen Wei, Junsong Yu, Jiwei Huang, Dakai Liang. An Algorithm of Dynamic Load Identification Based on FBG Sensor and Kalman Filter[J]. Acta Optica Sinica, 2018, 38(3): 328012

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Paper Information

Category: Remote Sensing and Sensors

Received: Aug. 4, 2017

Accepted: --

Published Online: Jul. 11, 2018

The Author Email: Liang Dakai (liangdk@nuaa.edu.cn)

DOI:10.3788/AOS201838.0328012

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Model parameters

Table 1. Model parameters

Table 2. Identification errors of loads under the conditions of Qw=1×10-8 and σ=1×10-16

Table 2. Identification errors of loads under the conditions of Qw=1×10-8 and σ=1×10-16

Table 3. Identification errors of loads under the conditions of Qw=1×10-6 and σ=1×10-12

Table 3. Identification errors of loads under the conditions of Qw=1×10-6 and σ=1×10-12