A Structural Damage Detection Technique Using Measured Flexibility Matrix
Publish place: 18th Annual Conference of Mechanical Engineering
Publish Year: 1389
نوع سند: مقاله کنفرانسی
زبان: English
View: 2,439
This Paper With 6 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ISME18_115
تاریخ نمایه سازی: 1 تیر 1389
Abstract:
Most of methods developed for detecting damage in a structure using measured modal parameters require a correlated finite element model, or at least, modal data of the structure for the intact state as baseline. For beam-like structures, curvature potential techniques, e.g., mode shape curvature and flexibility curvature have been applied to localize damage. In this paper, an approximate flexibility matrix has been derived using afew number of vibration modes whose columns are referred as flexibility shapes. Next, a damage localization method based on changes in flexibility shapes as well as its curvature is developed. Differential Quadrature Method has been implemented to obtain the curvatures of flexibility shapes. It was shown that the method works well using damaged model. To reduce the error due to differentiation of experimental data, a moving curve fit method has been implemented on flexibility shapes. The method is demonstrated through numerical and experimental case studies.
Keywords:
Authors
M. Salehi
PhD candidate, Isfahan University of Technology
S. Ziaei-Rad
Professor, Isfahan University of Technology;
M. Ghayour
Associate professor, Isfahan University of Technology
M.A Vaziri-Zanjani
۴Assistant professor, Amirkabir University of Technology
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :