Simulation and Experiment of Pressure Pipeline Weakness Monitoring Based on Optical Fiber Bragg Grating

Abstract:

Pressure pipelines have been applied widely in the chemical industry, the petroleum enterprises and the electrical power plants. Leakage and explosion accidents happened frequently owing to the weakness of the pressure pipeline. To monitoring the pressure pipeline weakness, a novel method is presented by using optical FBG (FBG: Fiber Bragg Grating) sensors to carry on the real-time monitoring of the pressure piping surface strains. A typical pressure pipeline was fabricated with weak position of L shaped, Tee shaped and U shaped joints. The strains of the weak position were analyzed by the ANSYS software, and then the same weak positions were monitored by experimental method of FBG sensor. The FBG sensor was verified a feasible means to monitoring the pressure pipeline by comparing the ANSYS software results with the experimental results of FBG sensors.

• Periodical: Applied Mechanics and Materials (Volume 487)
• Pages: 517-521
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.487.517
• Online since: January 2014
• Authors: Yue Ming Liu*, Zhong Cheng Xia, Xiao Liang Gao
• Keywords: ANSYS Software, FBG Sensor, Pressure Pipeline, Weakness Monitoring

References

[1] Cai Qingmu, Liu Yueming, Huang cangqing, et al. The Reliability and Progress of Life prediction Methods for High Temperature Pressure Pipes in Thermal Poewr Plants[J]. Meterials for Mechanical Engineering, 2012, 36(12): 5-9.

[2] Qi Ruicai. Non-destructive Testing in Pressure Pipes Based on Ultrasonic Guided Waves [D]. Dalian: University of Technology, (2006).

[3] Qu Quanyan, Zheng jiong. Application in the inspection of Pressure Vessel with infrared thermal imaging NDT [J]. NDT, 2006, 30(2): 10-14.

[4] Li Wenhong, Yang Zhenkun, Xia Jiansheng. Technology and Applications of Fiber Bragg Grating Sensors [J]. Chinese Journal of Sensors and Actuators, 2002, 15(3): 215-218.

[5] A Mendez, T F Merse and F Mendez. Application of embedded optical Fiber Sensors in reinforce concrete buildings and structures [J]. SPIE, 1989, 1171: 60-69.

[6] J D Prohaska, E Snitze, B Chen and M H Maher. Fiber optic Bragg Grating Strain Sensor in large scale concrete structures [J]. SPIE, 1993, 1978: 286~294.

DOI: 10.1117/12.141330

[7] Lu zhean, Jiang Zhixue, Shi Yuhua, et al. Application of FBG sensing technology in bridge test[J]. Journal of Wuhan University of Technology, 2003, 25(11): 57-59.

[8] Shang Jiashang, Wang Yu. Analysis and Correction of the Strain Transfer Error in the Measurement with the Fibre Grating Sensor [J]. Measurement & Control Technology, 2009, 28(3): 5~9.