Dynamics of a cylindrical shell with a collapsing elastic base under the action of a pressure wave
Journal Title: INCAS BULLETIN - Year 2019, Vol 11, Issue 0
Abstract
In the dynamic and quasi-static statements, the issue of non-stationary deformation and stability of the solid propellant rocket engine (SPRE) was approximately solved. It is modeled by a thin, smooth cylindrical shell, inside of which, on a part of its length, there is an elastic base corresponding to a gradually burning powder charge. A pressure wave is moving along the outer surface of the body, simulated by the running load. The deformed state of the shell is considered axisymmetric and is determined on the basis of the moment theory of the shells. For diverse variants of mounting the ends of the shell in a closed form, expressions were obtained for the critical velocity of the load. Examples were considered.
Authors and Affiliations
Boris A. ANTUFEV, Olga V. EGOROVA, Lev N. RABINSKIY
[b]The problem of incompressible jets with curvilinear walls[/b]
The jet flow problem concerning the discharge of a fluid (from an orifice in a container) into the atmosphere is studied herein in the framework of the Helmholtz-Kirchhoff model. The problem is reduced to the study of a...
Modeling Fluid dynamics and Aerodynamics by Second Law and Bejan Number (Part 1 - Theory)
Two fundamental questions are still open about the complex relation between fluid dynamics and thermodynamics. Is it possible (and convenient) to describe fluid dynamic in terms of second law based thermodynamic equation...
Dangerous entry into the aircraft fuel tank – Introduction of mobil robot
This paper focuses on the dangers assoicated with entry into aircraft fuel tank. The analysis will help to demonstrate that in the future a mobil robot will make this work easier for the human factor. There are number of...
Advanced Trailing Edge Blowing Concepts for Fan Noise Control
This study documents trailing edge blowing research performed to reduce rotor / stator interaction noise in turbofan engines. The existing technique of filling every velocity deficit requires a large amount of air and is...
Selected aspects of the supply chain management in the aerospace industry
The paper in the introductory part underlines some factors concerning the aerospace supply chain management (SCM) issue. Authors inform on selected definitions in this topic, levels of supply chain and its maturity. The...