پديد آورنده :
حاتمي، شهاب الدين
عنوان :
بررسي ارتعاش، پايداري و تعادل غير خطي ورقهاي پيوسته داراي سرعت طولي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده عمران
صفحه شمار :
ده، 170،[II] ص: مصور، جدول، نمودار
يادداشت :
ص.ع. به فارسي و انگليسي
استاد راهنما :
مجتبي ازهري
استاد مشاور :
محمد مهدي سعادتپور
توصيفگر ها :
ورقهاي ايستا , غلتكهاي مياني , ورق ارتوتروپيك , ماتريس , كامپوزيت لايه اي
تاريخ نمايه سازي :
2/5//86
استاد داور :
علي كاوه، بيژن برومند، سعيد ضيايي راد
كد ايرانداك :
ID175 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
Abstract Axially moving plates are of the technological importance and are present invarious industrial applications Band saw blades paper and plastic sheets in process andsteel strip in a thin steel sheet production line are some of these applications In the thesis the behaviour of moving plates has been studied in three fields At first based on classcalplate theory an exact solution is developed for stability and free vibration of movingplates The plates are generally multi span orthotropic plane stressed and elasticallysupported A dynamic stiffness matrix is formed by frequency dependent shape functions which are exact solutions of the governing differential equations The method is capable ofpredicting several natural modes by means of a small number of degrees of freedom theexact method can be useed as a benchmark of accuracy of other numerical methods Inaddition to elasticity a linear viscolastity theory is used to model the mechanical behaviourof plate material At the second field a semi analytical finite strip method is extended to analyze thestability and the vibration of moving plates with arbitrary boundary conditions intermediate supports and in plane loads Here a system of linear springs is used toanalyze a plate moving across point line and local distributed supports The finite stripmethod can analyze isotropic orthotropic and symmetrically laminated composite plates Finally a finite element formulation is developed for nonlinear equilibrium ofaxially moving thin plates Using Hamilton s principle the total stiffness matrix whichdepends on transverse displacements is obtained in the secant form The Coriolis and thecentripetal inertial forces which influence out of plane and in plane equilibria appear inthe formulation as gyroscopic and dynamic stability matrices Although the formulation isindependent of element type an isoparametric quadrilateral superelement is adopted for thesolution of examples
استاد راهنما :
مجتبي ازهري
استاد مشاور :
محمد مهدي سعادتپور
استاد داور :
علي كاوه، بيژن برومند، سعيد ضيايي راد
