Application of Optical Fiber Communication in Railways Pdf

• Published: 15 March 2018

The Analysis of Angle Resolution of Stress Vector Sensor Based on Optical Fiber Sensing Cable for High Speed Railway Traffic

Journal of Shanghai Jiaotong University (Science) volume 23,pages 61–65 (2018)Cite this article

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Abstract

With the development of high speed railway traffic, the structure health monitoring for high-speed rail is necessary due to the safety issue. Optical fiber sensing technology is one of the options to solve it. Stress vector information is the important index to make more reasonable judgments about railway safety. However, information sensed by lots of commercial optical sensors is scalar. According to the stress filed distribution of rail, this paper proposes a new type of stress vector sensor based on optical fiber sensing cable (OFSC) with a symmetrical seven optical fibers structure and analyzes the relations between angle resolution and distance between adjacent of optical fibers through finite-element software (ANSYS) simulation. Through reasonable distance configuration, the angle resolution of the OFSC can be improved, and thus stress vector information, including the stress magnitude and the angle of stress, can be more accurately obtained. The simulation results are helpful to configure OFSC for angle resolution improvement in actual practice, and increase the safety factor in high speed railway structure health monitoring.

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Affiliations

1. State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai, 200240, China

   Shunge Deng, Xin Ma & Xinwan Li

2. University of Michigan - Shanghai Jiao Tong University Joint Institute, Shanghai Jiao Tong University, Shanghai, 200240, China

   Xinwan Li

3. Shanghai Institute for Advanced Communication and Data Science, Shanghai Jiao Tong University, Shanghai, 200240, China

   Xinwan Li

Corresponding author

Correspondence to Xinwan Li.

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Deng, S., Ma, X. & Li, X. The Analysis of Angle Resolution of Stress Vector Sensor Based on Optical Fiber Sensing Cable for High Speed Railway Traffic. J. Shanghai Jiaotong Univ. (Sci.) 23, 61–65 (2018). https://doi.org/10.1007/s12204-018-1910-4

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• Received: 21 September 2017

• Published: 15 March 2018

• Issue Date: February 2018

• DOI : https://doi.org/10.1007/s12204-018-1910-4

Key words

• optical fiber sensing cable
• rail
• angle resolution
• stress
• finite element analysis

CLC number

• TN 29

Application of Optical Fiber Communication in Railways Pdf

Source: https://link.springer.com/article/10.1007/s12204-018-1910-4

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