TY - GEN
T1 - Optimization of nonlinear structures based on object-oriented parallel programming
AU - Fischer, M.
AU - Firl, M.
AU - Masching, H.
AU - Bletzinger, K. U.
PY - 2010
Y1 - 2010
N2 - This contribution presents a computational framework for simulation and gradientbased structural optimization of geometrically nonlinear and large-scale structural finite element models. CAGD-free optimization methods have been developed to integrate shape optimization in an early stage of design and to reduce the related modelling effort. To overcome the problem of an increasing numerical cost due to the large design space, the design sensitivities for objectives and constraints are evaluated via adjoint formulations. A new parallel computation strategy for sensitivity evaluation is presented which takes advantage of a completely parallelized simulation and optimization environment. Two application examples illustrate the method and demonstrate the high parallel efficiency.
AB - This contribution presents a computational framework for simulation and gradientbased structural optimization of geometrically nonlinear and large-scale structural finite element models. CAGD-free optimization methods have been developed to integrate shape optimization in an early stage of design and to reduce the related modelling effort. To overcome the problem of an increasing numerical cost due to the large design space, the design sensitivities for objectives and constraints are evaluated via adjoint formulations. A new parallel computation strategy for sensitivity evaluation is presented which takes advantage of a completely parallelized simulation and optimization environment. Two application examples illustrate the method and demonstrate the high parallel efficiency.
KW - C++
KW - CAGD-free optimization
KW - Finite element method
KW - Nonlinear kinematics
KW - Object-oriented programming
KW - Parallel programming
KW - Structural optimization
UR - http://www.scopus.com/inward/record.url?scp=84858437205&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84858437205
SN - 9781905088393
T3 - Proceedings of the 7th International Conference on Engineering Computational Technology
BT - Proceedings of the 7th International Conference on Engineering Computational Technology
T2 - 7th International Conference on Engineering Computational Technology, ECT 2010
Y2 - 14 September 2010 through 17 September 2010
ER -