پديد آورنده :
اميني، سيروس
عنوان :
طراحي، تحت ايمن در برابر آوار ناشي زلزله با استفاده از بهينه سازي تركيبي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
طراحي كاربردي
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
ده،120ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمدرضا فروزان
توصيفگر ها :
ديناميك تماس ناهموار , بهينه سازي توپولوژي , معيار بهينگي پارتو
تاريخ نمايه سازي :
11/8/89
استاد داور :
محمود سليمي، محمود كدخدايي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
121 Design of safety bed against rubbles from earthquake using combined optimization Cyrus Amini samini@me iut ac ir 2010 07 26 Department of Mechanical Engineering Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Assist Prof Mohammadreza Forouzan forouzan@cc iut ac ir Abstract Earthquake never causes death directly most of injuries and casualties are because of dropping things and phenomenon of ceiling collapse 1 Thus some efforts have been done in order to confronting damages of natural disaster such as earthquake Using safety bed against earthquake is one of the tools for protecting people against rubble of earthquake however in most advanced countries although buildings are constructed based on principles of earthquake engineering safety beds are still used In the first chapter of this research a review on previous works on this area is performed and then in the second and third chapters mathematical relations and contact laws among masonry buildings in the form of discrete modeling are presented and minimization of multi objective functions using Pareto Optimality is described explicitly Moreover topological optimization methods finding geometry of structure whose force lines are distinguished in addition structure holds minimum compliance are introduced In the fourth chapter it is tried to model building accompanied by its components bricks and connections with the aid of new software LMGC 90 in the field of geo technique Then load of rubbles on initial geometry simple cube which its dimensions are obtained from an initial design of safety bed is determined The process of topological optimization utilizing element Shell 93 in several reduction volumes is done and weighted functions with several combination of weighted coefficients is minimized afterward the optimum Pareto point is computed and final topology of structure is obtained In fifth chapter according to this topology components of structure based on beam element beam 3 are modeled At first the design optimization under yielding stress constraint is executed after that this process is re done by adding buckling constraint The outputs of this optimization are optimal thickness length of elements and cross sections At the end in sixth chapter some suggestions for final design and the obtained results from combined optimization process are presented Key words NSCD load of rubbles Safety bed topological optimization Pareto optimality
استاد راهنما :
محمدرضا فروزان
استاد داور :
محمود سليمي، محمود كدخدايي
