Construction and validation of the finite element virtual model of the beam of equal resistance of the weight measurement system

Author(s):  A.S. Kuzubov, Belgorod State Technological University n.a. V.G. Shukhov, Belgorod, Russia, kusubov@list.ru

D.A. Bushuev, candidate of Sciences, Belgorod State Technological University n.a. V.G. Shukhov, Belgorod, Russia, dmbushuev@gmail.com

E.M. Parashchuk, candidate of Sciences, Belgorod State Technological University named after V.G. Shoukhov, Belgorod, Russia, kara1205@mail.ru

Issue:  Volume 46, № 2

Rubric:  Computer simulation history

Annotation:  The article describes the process of construction and validation of a finite element (FE) virtual model of the beam of equal resistance (BRS), which is a flex part of the laboratory weigh measurement system. A model of the BRS developed in the MSC Patran software and calculated by the FE method using the SOL 101 solver of the MSC Nastran system stress strain behavior are presented. The mathematical model of the ideal BRS is given. A general view and a description of the developed laboratory weigh measurement system used in the validation of the FE model based on the BRS, the glued strain gauges and the module of the signal processing of the strain gauges are presented. The results of calculations of the relative deformation obtained by the mathematical model of the ideal BRS, the FE model and as a result of the experiment are presented and analyzed. During the validation, it was found that the maximum discrepancy between the FE model and the result of the experiment does not exceed 3.5%.

Keywords:  validation, finite element model, finite element model updating, virtual model, sensor locations, stress-strain behavior, Nastran, Patran.

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