Title :
Suppression Analysis of Underwater EM Signal Error Due to Pipeline Array Resonance
Author :
Su Jianye ; Lv Junjun ; Wu Liang ; Tian Ji ; Cui Pei
Author_Institution :
Key Lab. of Underwater Monitoring & Control Technol., Dalian, China
Abstract :
Vortex induced oscillation of underwater pipeline array brings the effects of both the three-component directivity variation of EM transducer and the enhancement of self-noise into the system, thus measurement accuracy of EM signal induced by underwater target is greatly reduced. This paper analyzes the characteristics of moving water and resonance suppression theory, summarizes the optimized method to design pipeline array, and adopts finite element simulation to realize the aim of resonance suppression. The simulation result shows that the EM signal detection ability is enhanced for the reason that the intrinsic frequency can be increased and become higher than the frequency of moving water by optimizing the length of pipeline array and boundary conditions.
Keywords :
electromagnetic oscillations; finite element analysis; optimisation; pipelines; pipes; seawater; signal detection; transducers; underwater vehicles; vortices; EM signal; EM signal detection; EM transducer; finite element simulation; resonance suppression theory; self-noise enhancement; three-component directivity variation; underwater EM signal error suppression analysis; underwater pipeline array resonance; vortex induced oscillation; Analytical models; Arrays; Finite element analysis; Ocean temperature; Pipelines; Resonant frequency; Vibrations; finite element; underwater pipeline array; vehicle underwater EM field; vortex oscillation;
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2013 Third International Conference on
Conference_Location :
Shenyang
DOI :
10.1109/IMCCC.2013.225
