چکیده مقاله
Ultrasonic Guided Wave inspection is one of the most recent approaches of Non Destructive Testing The greatest challenge for any guided wave system is the plethora of wave modes arising from the complex geometry of the structural element which propagate with a range of frequency dependent velocities As a result, multiple wave modes reflected by discontinuities in the structural element are combined to confuse the inspection In this paper an automatic, novel signal processing technique is presented using a dispersion simulation and two dimensional subtractive search The technique is applied to modeling data in order to separate superposed guided wave signals in time domain and derive the exact time of flight for individual wave modes
کلیدواژهها
نویسندگان
Sina Fateri
Centre for Electronic Systems Research CESR , Brunel University, Kingston Lane, London, United Kingdom,
شیوه ارجاع
Fateri, Sina,1392,An Automatic Mode Separation Technique for Multimodal Guided Wave Analysis,The first international conference on welding and non-destructive testing, the 14th national conference on welding and inspection, and the third national conference on non-destructive testing.,Karaj
ارائهشده در
مجموعه مقالات اولین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب، چهاردهمین کنفرانس ملی جوش و بازرسی و سومین کنفرانس ملی آزمایش های غیر مخرب6 اسفند 1392 · کرج