Accurate reanalysis of structures by a preconditioned conjugate gradient method

0411003 - UTIA-B 20020217 RIV GB eng J - Journal Article
Kirsch, U. - Kočvara, Michal - Zowe, J.
Accurate reanalysis of structures by a preconditioned conjugate gradient method.
International Journal for Numerical Methods in Engineering. Roč. 55, č. 2 (2002), s. 233-251. ISSN 0029-5981. E-ISSN 1097-0207
R&D Projects: GA AV ČR IAA1075005
Grant - others:BMBF(DE) 03ZOM3ER
Institutional research plan: CEZ:AV0Z1075907
Keywords : preconditioned conjugate gradients * structural reanalysis
Subject RIV: BA - General Mathematics
Impact factor: 1.468, year: 2002

A Preconditioned Conjugate Gradient (PCG) method that is most suitable for reanalysis of structures is developed. The method presented provides accurate results efficiently. It is easy to implement and can be used in a wide range of applications, including nonlinear analysis and eigenvalue problems. It is shown that the PCG method presented and the Combined Approximations (CA) method developed recently provide theoretically identical results.
Permanent Link: http://hdl.handle.net/11104/0131090