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《Aeronautical Science & Technology》 2020-01
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Compensation Method for Load Effect on Guided Wave Propagation Based on ADALINE Network

Wang Yi;Qiu Lei;Yuan Shenfang;State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics;  
Load condition has a significant effect on guided wave propagation, which brings uncertainty to the structural health monitoring technology based on guided wave. In order to improve the reliability of guided wave based damage diagnosis method, a load compensation method based on Adaptive Linear Neuron(ADALINE) network is proposed. By establishing the load compensation standard and designing the optimal compensation network parameters and load gradient range, this method can effectively reduce the storage of reference signal and realize large-scale load compensation. Then the effectiveness of the method is verified during the damage monitoring experiment of carbon fiber composite structure under the influence of load. The compensation range of the load compensation method is 0~100 MPa, the compensation interval is 20 MPa, and the compensation accuracy is-25 dB,which improve the reliability of damage diagnosis under the influence of load.
【Fund】: 国家自然科学基金(51635008 51921003 51975292);; 教育部霍英东青年教师基金(161048);; 江苏高校优势学科建设工程~~
【CateGory Index】: V267;V214
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