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- W2104565119 abstract "The problem of numerical simulation of pulpwood collisions in a debarking drum is regarded as the source of the contact problem. The solution of this problem will allow to predict the strength of pulpwood collisions with each other and with the drum body. The contact problem reduces to finding a solution of a linear complementarity problem with a positive definite matrix of coefficients if a finite element model is applied. The dynamics of the research object is modeled as a set of its static states and time-ordered by the method of finite differences. A new decomposition algorithm of a linear complementarity problem with a positive definite matrix of coefficients is substantiated. At each time step the algorithm numerical implementation reduces to Gauss-Jordan eliminations with the choice of the matrix main element by the proposed energy criterion. The energy criterion is used to find the global minimum of a discrete set of quadratic functions, where each one has a single variable. In terms of mechanics, the energy criterion at each step of the algorithm is used as the criterion for the transition of unilateral constraints from a possible state to a real state. The solution of the mentioned linear complementarity problem by the new algorithm is found in fewer steps in comparison to test examples known from the literature." @default.
- W2104565119 created "2016-06-24" @default.
- W2104565119 creator A5067843622 @default.
- W2104565119 date "2013-01-01" @default.
- W2104565119 modified "2023-10-17" @default.
- W2104565119 title "Decomposition Algorithm of Linear Complementarity Problem and its Application for Simulation of Pulpwood Colliding in Debarking Drum" @default.
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- W2104565119 doi "https://doi.org/10.15393/j2.art.2013.2661" @default.
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