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Perm’, Russia

Buzyurkin A.E.,RAS Institute of Theoretical and Applied Mechanics | Gladky I.L.,Aviadvigatel OJSC | Kraus E.I.,RAS Institute of Theoretical and Applied Mechanics
Aerospace Science and Technology

Based on the available experimental data, dependences of true stress on true strain under dynamic loading for titanium alloys VT6, OT4, OT4-0 are constructed, and parameters for Johnson-Cook model are determined. Simulation results for deformation and fracture of fan case of aircraft engine at high-speed collision with the fan blade simulator in LS-DYNA software package are presented. © 2015 Elsevier Masson SAS. Source

Arbekov A.N.,Moscow State Technical University | Varaksin A.Y.,Moscow State Technical University | Inozemtsev A.A.,Aviadvigatel OJSC
High Temperature

The thermodynamic cycle of a aeroderivative trigeneration plant and its scheme are presented. The influence of the by-pass ratio on the implementation of the proposed scheme is evaluated. It is shown that it is necessary to give preference to plants based on turbofan engines with a low by-pass ratio and a high pressure ratio of the low-pressure compressor. The primary advantage of the proposed scheme is minimal modification of the basic engine. © 2015, Pleiades Publishing, Ltd. Source

Inozemtsev A.A.,OJSC | Dubrovskaya A.S.,Aviadvigatel OJSC | Dongauser K.A.,Aviadvigatel OJSC | Trufanov N.A.,PNRPU
IOP Conference Series: Materials Science and Engineering

In this paper the process of multiple airfoilvanes manufacturing through investment casting is considered. The mathematical model of the full contact problem is built to determine stress strain state in a cast during the process of solidification. Studies are carried out in viscoelastoplastic statement. Numerical simulation of the explored process is implemented with ProCASTsoftware package. The results of simulation are compared with the real production process. By means of computer analysis the optimization of technical process parameters is done in order to eliminate the defect of cast walls thickness variation. © Published under licence by IOP Publishing Ltd. Source

Inozemtsev A.A.,Aviadvigatel OJSC | Dubrovskaya A.S.,Komsomolsky Prospect | Dongauzer K.A.,Aviadvigatel OJSC | Trufanov N.A.,Komsomolsky Prospect
ISIJ International

This article describes application of computational simulation for manufacturing of castings using investment casting technique. A mathematical model was created describing the process of melted metal pouring into the ceramic shell with its further solidification. Using this model the process of manufacturing single-crystal patterns from heat-resistant nickel superalloy was simulated. The obtained computational model was verified by the temperature measuring of the real-life production experiment. Using mathematical simulation the speed of the patterns moving out was optimized to increase temperature gradient on the casting. © 2014 ISIJ. Source

Inozemtsev A.A.,Aviadvigatel OJSC | Polatidi L.B.,Aviadvigatel OJSC | Andreychenko I.L.,Aviadvigatel OJSC
29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014

The features of existing aero engine (or its major components) life assignment strategies are discussed: Terms of application, advantages and disadvantages of each strategy. The attention is also given to the matters of special qualification of PD-14 engine materials, resulting in creation of materials mechanical properties Data Base. Source

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