Impact Interaction Study Algorithms in Aviation Structures

DOI: 10.34759/trd-2020-111-6

Аuthors

Goldovskii A. A.^1*, Firsanov V. V.^2**

1. Toropov Machine-Building Design Bureau "Vimpel", 90, Volokolamskoe shosse, Moscow, 125424, Russia
2. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: gold4545@list.ru
**e-mail: k906@mai.ru

Abstract

The presented article reflects the problem of studying impact interactions in aviation structures. Engineering techniques development on studying the causes of highly-dynamical processes occurrence is a topical task from the viewpoint of application and operation safety of these or that aviation structures. The above appointed techniques are aimed to studying conditions, at which contact interaction of the two elastic-plastic bodies occurs. This article purpose consists in generalizing engineering approach to the processes studying, which could lead to impact process in aviation structures, and it, in its turn, to the hazardous or emergency situation.

Impact interaction of the two elastic-plastic bodies, i.e. internal impact of the metallic plug on the fuselage load-bearing element of the “stringer” type, act as a subject of studies. Due to the contact of the two bodies, stressed-strain state of the load-bearing element is being considered to obtain qualitative estimation of the power factors, impacting on the colliding elements. The article presents the algorithm for studying impact interaction, as well as numerical modelling of the two elastic-plastic bodies’ impact.

Based on the numerical modelling results, operation of the algorithms for impact interaction study is shown, and displacement and deformation values matching criterion in the damaged area nodes was refined.

Keywords:

impact interaction, numerical simulation

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