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Development of an optimal piezoelectric transducer to excite guided waves in a rail web

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dc.contributor.author Ramatlo, Dineo AM
dc.contributor.author Wilke, DN
dc.contributor.author Loveday, Philip W
dc.date.accessioned 2019-03-29T07:45:58Z
dc.date.available 2019-03-29T07:45:58Z
dc.date.issued 2018-04
dc.identifier.citation Ramatlo, D.N., Wilke, D.N., and Loveday, P.W. 2018. Development of an optimal piezoelectric transducer to excite guided waves in a rail web. NDT & E International, v. 95, pp 72-81. en_US
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S0963869518300781
dc.identifier.uri http://hdl.handle.net/10204/10879
dc.description Copyright: 2018. Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, kindly consult the publisher's website. en_US
dc.description.abstract Ultrasonic transducers have demonstrated the ability to effectively excite guided waves that can propagate over long distances and are thus employed in monitoring systems. An ultrasonic piezoelectric transducer that strongly excites a mode travelling in the web of the rail is required to detect cracks in the rail web. A numerical method referred to as the Coupled Semi-Analytical Finite Element - 3 Dimensional Finite Element (Coupled SAFE-3DFE) method is employed to model the excitation of guided waves in a rail by a transducer. The aim of this study is to demonstrate that the Coupled SAFE-3DFE method used in conjunction with mathematical optimization methods, can automate the optimal design of a transducer. The optimal transducer was constructed and experimental measurements were found to agree with the predicted performance. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Worklist;20368
dc.subject Coupled SAFE-3DFE en_US
dc.subject Guided waves en_US
dc.subject Optimization en_US
dc.subject Piezoelectric transducer en_US
dc.subject Response surface en_US
dc.title Development of an optimal piezoelectric transducer to excite guided waves in a rail web en_US
dc.type Article en_US
dc.identifier.apacitation Ramatlo, D. A., Wilke, D., & Loveday, P. W. (2018). Development of an optimal piezoelectric transducer to excite guided waves in a rail web. http://hdl.handle.net/10204/10879 en_ZA
dc.identifier.chicagocitation Ramatlo, Dineo AM, DN Wilke, and Philip W Loveday "Development of an optimal piezoelectric transducer to excite guided waves in a rail web." (2018) http://hdl.handle.net/10204/10879 en_ZA
dc.identifier.vancouvercitation Ramatlo DA, Wilke D, Loveday PW. Development of an optimal piezoelectric transducer to excite guided waves in a rail web. 2018; http://hdl.handle.net/10204/10879. en_ZA
dc.identifier.ris TY - Article AU - Ramatlo, Dineo AM AU - Wilke, DN AU - Loveday, Philip W AB - Ultrasonic transducers have demonstrated the ability to effectively excite guided waves that can propagate over long distances and are thus employed in monitoring systems. An ultrasonic piezoelectric transducer that strongly excites a mode travelling in the web of the rail is required to detect cracks in the rail web. A numerical method referred to as the Coupled Semi-Analytical Finite Element - 3 Dimensional Finite Element (Coupled SAFE-3DFE) method is employed to model the excitation of guided waves in a rail by a transducer. The aim of this study is to demonstrate that the Coupled SAFE-3DFE method used in conjunction with mathematical optimization methods, can automate the optimal design of a transducer. The optimal transducer was constructed and experimental measurements were found to agree with the predicted performance. DA - 2018-04 DB - ResearchSpace DP - CSIR KW - Coupled SAFE-3DFE KW - Guided waves KW - Optimization KW - Piezoelectric transducer KW - Response surface LK - https://researchspace.csir.co.za PY - 2018 T1 - Development of an optimal piezoelectric transducer to excite guided waves in a rail web TI - Development of an optimal piezoelectric transducer to excite guided waves in a rail web UR - http://hdl.handle.net/10204/10879 ER - en_ZA


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