پديد آورنده :
شهولي، حمزه
عنوان :
بررسي ارتعاش اجباري سازه‌هاي دوبعدي و سه‌بعدي متشكل از اعضاي يك‌بعدي با استفاده از روش گام‌به‌گام باقي‌مانده وزني زماني
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران
صفحه شمار :
[نه]، ۱۱۵ص.: مصور، جدول، نمودار
استاد راهنما :
بيژن برومند، بشير موحديان عطار
توصيفگر ها :
روش گام به گام زماني , معادله انتشار موج , توابع پايه نمايي , روش المان محدود طيفي , پاسخ ديناميكي , سازه‌هاي چندبعدي
استاد داور :
نيما نورمحمدي، محمد مهدي سعادتپور
تاريخ ورود اطلاعات :
1397/07/03
چكيده فارسي :
مراجع 777 چكيده انگليسي 177
چكيده انگليسي :
111 چكيده انگليسي Implementation of Time Weighted Residual method to Forced Vibration of Two and Three Dimensional Structures Hamzeh Shahvali h shahvali@cc iut ac ir Date of Submission June 26 2018 Department of Civil Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisors Dr Bijan Boroomand boromand@cc iut ac ir Dr Bashir Movahedian b movahedian@cc iut ac ir Abstract Determination of the precise dynamic response under various loads such as earthquake load impact load etc has a significant role in the safe and economic design of structures In this thesis a new meshless method withthe idea of time weighted satisfaction of axial flexural and torsional wave propagation equations is presented forthe analysis of structures with one dimensional members subjected to dynamic loads The main idea of time marching method is to use pre integration relationships along with equilibrium equations In this approach theinitial conditions are exactly satisfied in a time marching manner and the equilibrium equation is satisfied using atime weighted residual method Boundary conditions are also met at the ends of each element on the boundary ofthe problem and at the end of each step The main advantage of this method is saving of the time step informationon the coefficients of some exponential basis functions EBFs so that the solution advances in time without theneed of domain points for discretization In the other words just a recursive relation has been used for updating theEBF s coefficients In this study due to the verification of the results by classic and spectral element methods first theformulation of the spectral element method in solution of the wave propagation problem and its disadvantages arediscussed Then a new technic is employed to transform the wave equations into non dimensional equations andformulation of the time weighted method is extracted to calculate the dynamic response of one structural element Afterwards the forced vibration dynamic response of two and three dimensional structures is obtained byimplementing the superposition principal to the responses of axial flexural and torsional waves equations Finally at the end of each section ability of the presented method is argued due to solving different problems in comparisonwith the finite element and spectral element methods Key words Time marching method Wave propagation Exponential basis functions Dynamic response Twoand three dimensional structures
استاد راهنما :
بيژن برومند، بشير موحديان عطار
استاد داور :
نيما نورمحمدي، محمد مهدي سعادتپور
