Abstract

Many engineering des98 applications require geometric modeling and mechanical s imulation of thin flexibles tructures ,s uchas thos e found in the automotive and aerosH ce indus ries Traditionally, geometric modeling, mechanical s mulation, and engineering des ign are treated as s eparate modules requiring di#erent methods and represR tations Due to the incompatibility of the involved repres9 tations the trans ition from geometric modeling to mechanicals imulation,as wellas in the oppos ite direction, requires s ubs tantial e#ort. However, for engineering des ign purpos es e#- cient trans ition between geometric modeling and mechanicalsa ulationis esio tial. We propos e the us ofs ubdivis ons5AP ces as a common foundation for modeling, s mulation, and des gn in a unified framework. Subdivis ons686 ces provide a flexible and e#cient tool for arbitrary topology free-forms urface modeling, avoiding many of the problems inherent in traditionals pline patch bas d approaches The underlying bass functions are als ideallys5 ted for a finite-element treatment of thes o-called thins hell equations , which des cribe the mechanical behavior of the modeleds tructures The res ulting s lvers are highly s alable, providing an e#cient computational foundation for des ign exploration and optimization. We demons rate our claims withs everal des5R examples s howing the versH6P64 y and high accuracy of the propos d method. Key words: Subdivis on Surfaces Finite-Elements Shells ; 1

Citations