Numerical investigation and optimal design of fiber Bragg grating based wind pressure sensor

2017, Volume 11, Issue 3

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Frontiers of Structural and Civil Engineering >> 2017, Volume 11, Issue 3 doi: 10.1007/s11709-017-0415-9

Numerical investigation and optimal design of fiber Bragg grating based wind pressure sensor

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. Department of Bridge Engineering, Tongji University, Shanghai 200092, China.. Shanghai Municipal Engineering Design Institute (Group) Co. Ltd., Shanghai 200092, China.. Shanghai Urban Construction Design Research Institute, Shanghai 200125, China

Accepted: 2017-07-10 Available online: 2017-08-24

Abstract

A wind pressure sensor based on fiber Bragg grating (FBG) for engineering structure was investigated in this paper. We established a transaction model of wind pressure to strain and proposed a method of temperature compensation. By finite element analysis, the basic parameters of the sensor were optimized with the aim of maximum strain under the basic wind pressure proposed in relative design code in China taking geometrical non-linearity into consideration. The result shows that the wind pressure sensor we proposed is well performed and have good sensing properties, which means it is a technically feasible solution.

Keywords

wind pressure measurement ; wind pressure sensor ; fiber Bragg grating ; optimal design

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