| Attributes | Values |
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| rdf:type
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| Description
| - Computation of criticalpoints on an equilibrium path requires the solution of a non-linear eigenvalue problem. These criticalpoints could be either bifurcation or limit points. When the external load is parametrized by a single parameter, the non-linear stability eigenvalue problem consists of solving the equilibrium equations along the criticality condition. Several techniques exist for solution of such a system. Their algorithmic treatment is usually focused for direct linear solvers and thus use the block elimination strategy. In this paper special emphasis is given for a strategy which can be used also with iterative linear solvers. Comparison to the block elimination strategy with direct linear solvers is given. Due to the non-uniqueness of the critical eigenmode a normalizing condition is required. In addition, for bifurcation points, the Jacobian matrix of the augmented system is singular at the criticalpoint and additional stabilization is required in order to maintain the quadratic convergence of the Newton’s method. Depending on the normalizing condition, convergence to acriticalpoint with negative load parameter value can happen. The form of the normalizing equation is critically discussed. Due to the slenderness of the buckling sensitive structures the resulting matrices are ill-conditioned and a good preconditioner is mandatory for efficient solution.
- Computation of criticalpoints on an equilibrium path requires the solution of a non-linear eigenvalue problem. These criticalpoints could be either bifurcation or limit points. When the external load is parametrized by a single parameter, the non-linear stability eigenvalue problem consists of solving the equilibrium equations along the criticality condition. Several techniques exist for solution of such a system. Their algorithmic treatment is usually focused for direct linear solvers and thus use the block elimination strategy. In this paper special emphasis is given for a strategy which can be used also with iterative linear solvers. Comparison to the block elimination strategy with direct linear solvers is given. Due to the non-uniqueness of the critical eigenmode a normalizing condition is required. In addition, for bifurcation points, the Jacobian matrix of the augmented system is singular at the criticalpoint and additional stabilization is required in order to maintain the quadratic convergence of the Newton’s method. Depending on the normalizing condition, convergence to acriticalpoint with negative load parameter value can happen. The form of the normalizing equation is critically discussed. Due to the slenderness of the buckling sensitive structures the resulting matrices are ill-conditioned and a good preconditioner is mandatory for efficient solution. (en)
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| Title
| - Implementation of a direct procedure for critical point computations using preconditioned iterative solvers
- Implementation of a direct procedure for critical point computations using preconditioned iterative solvers (en)
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| skos:prefLabel
| - Implementation of a direct procedure for critical point computations using preconditioned iterative solvers
- Implementation of a direct procedure for critical point computations using preconditioned iterative solvers (en)
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| skos:notation
| - RIV/67985807:_____/12:00376185!RIV13-GA0-67985807
|
| http://linked.open...avai/predkladatel
| |
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(GAP108/11/0853), Z(AV0Z10300504)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/67985807:_____/12:00376185
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - non-linear eigenvalue problem; equilibrium equations; critical points; preconditioned iterations (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| - GB - Spojené království Velké Británie a Severního Irska
|
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Tůma, Miroslav
- Fedoroff, A.
- Kouhia, R.
- Marjamäki, H.
- Mäkinen, J.
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| http://linked.open...ain/vavai/riv/wos
| |
| http://linked.open...n/vavai/riv/zamer
| |
| issn
| |
| number of pages
| |
| http://bibframe.org/vocab/doi
| - 10.1016/j.compstruc.2012.02.009
|
| is http://linked.open...avai/riv/vysledek
of | |
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