پديد آورنده :
عزيزي، نيما
عنوان :
استفاده از روش اجزاء محدود طيفي در تحليل ارتعاشي اجزاء سازه اي ، تحت اثر نيروهاي ضربه و بارهاي متحرك
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران
صفحه شمار :
ده،228ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمد مهدي سعادتپور، مجتبي محزون
استاد مشاور :
بيژن برومند
توصيفگر ها :
آناليز ديناميكي , روش اجزاء محدود طيفي در حوزه ي فركانس , روش اجزاء محدود طيفي در حوزه ي زمان , انتشار موج , بار ضربه
تاريخ نمايه سازي :
1/5/92
استاد داور :
سعيد ضيايي راد، فرشيد مسيبي، فرهاد بهنام فر
كد ايرانداك :
ID515 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Abstract The analysis of structures subjected to moving loads and using the results of such analysis in design of bridges is an active research area in dynamics of structures Nowadays the results of the mentioned analysis become more important due to the presence of high speed trains and vehicles Moreover health monitoring of structures by using wave propagation analysis is vital in some fields like aerospace industries Regarding these points in this thesis spectral element method in frequency and time domain is employed to respond to the demanding of more precise analysis in this area Although spectral element method in frequency domain SEM has been developed during last two decades however this method has not been used to analyze structures subjected to moving loads Thus in this thesis SEM is used for analyzing Euler beams and in plane vibration of curved beams subjected to moving and impact loads For this purpose curved beam dynamic stiffness matrix and the subsequent procedures of applying it in SEM are developed In the fourth part of the thesis spectral element method in time domain SEMT is used to analyze ordinary elastic and FGM plates The related dispersion relation of each plate is evaluated and used to verify numerical results Finally ordinary elastic plate subjected to an arbitrary moving load is analyzed using higher order Legendre spectral elements Numerical results from SEM or SEMT show very good agreement with analytical ones which indicates the strength of the methods in dynamic analysis of structures Key words dynamic analysis spectral element method in frequency domain spectral element method in time domain wave propagation impact load moving load PDF created with pdfFactory trial version www pdffactory com
استاد راهنما :
محمد مهدي سعادتپور، مجتبي محزون
استاد مشاور :
بيژن برومند
استاد داور :
سعيد ضيايي راد، فرشيد مسيبي، فرهاد بهنام فر
