Application of the method of discrete elements for modeling of vibro-impact systems

Author(s):  O.A. Verzilina, Stary Oskol technological Institute. A. A. Ugarov (branch) of Federal state Autonomous-th educational institution of higher professional education "national research technological University "MISIS", Stary Oskol, Russia, staglo@mail.ru

Issue:  Volume 45, №1

Rubric:  Computer simulation history

Annotation:  In the current article considers the objective of applying the method of discrete elements to the problem of modeling of vibro-impact systems. The author describes the main stages of modeling. The modeling stage, which requires large computational operations and costs of machine time, is a modeling and numerical calculation of dynamic characteristics based on the discrete element method(DEM).Direct sequential calculations of these algorithms due to the very large dimensionality of the system (10,000 – 40,000 equations) require significant machine time. In this regard, the method of modeling with parallelization of calculations using technology NVIDIA CUDA, which can be useful to designers of aircraft parts in connection with a significant reduction in simulation time, is justified and developed. The simulation of the process vibration shock hardening of the butt profile of the wing rib is carried out and significant results of time reduction are obtained, while the accuracy of the calculation of technological parameters is preserved

Keywords:  discrete element method, vibro hardening, NVIDIA CUDA, parallel computing, reducing the time

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