Title :
A New Static Reanalysis Method of Topological Modifications with Added Degrees of Freedom
Author :
Xu, Tao ; Kai, Huen Wai ; Cheng, Fei ; Guo, Guikai ; Yoshino, Tatsuo
Author_Institution :
State Key Lab. of Automotive Dynamic Simulation, Jilin Univ., Changchun, China
Abstract :
A new method for structural static reanalysis of topological modifications with Added Degrees of Freedom is presented. The proposed procedure is easy to implement and suit for the case of modifications with the number of DOFs is increased. According to the analysis result of original system, the suitable preconditioner is selected and the response of modified structure is gained by Lanczos algorithm. Both the present method and the Lanczos algorithm without preconditioning are applied to numerical example, respectively. The Convergence of the two methods are compared. The computational cost is significantly reduced by the proposed method. The numerical results show the exactitude and effectiveness of the reanalysis algorithm.
Keywords :
iterative methods; optimisation; structural engineering; Lanczos algorithm; added freedom degrees; convergence; preconditioner; static reanalysis method; topological modifications; Algorithm design and analysis; Automotive engineering; Computational efficiency; Computational modeling; Convergence; Educational institutions; Equations; Iterative methods; Optimization methods; Vehicle dynamics; finite element systems; preconditioned Lanczos algorithm; structural static reanalysis; topological modifications;
Conference_Titel :
Computational Science and Optimization (CSO), 2010 Third International Joint Conference on
Conference_Location :
Huangshan, Anhui
Print_ISBN :
978-1-4244-6812-6
Electronic_ISBN :
978-1-4244-6813-3
DOI :
10.1109/CSO.2010.101
