Computer-aided design of aircraft gas turbine engines and selection of materials for their main parts

Abstract

The problem of aircraft gas turbine engine computer-aided design is dealt with in the article. An expert system for the selection of materials, coatings and other kinds of preparing surfaces of the main components and assembly units of the aircraft gas turbine engine flow section at the design stage developed on the basis of thermogasdynamic simulation modeling of DVIGw aviation engines is described.  The system performs thermal gas calculation of the engine and its main components, develops the most likely structure of the main parts, estimates the thermal state of air-gas channel elements, makes an approximate strength prediction of the main elements and assembly units, analyzes the applicability of the materials from the developed database, generates the list of the most applicable materials, offers possible variants of coatings and heat treatment conditions. A topological model of two-spool mixed flow turbofan with an afterburner chamber for military high-maneuverability aircraft in the developed expert system is presented in the article. Some results of modeling and choosing materials for the main engine parts are presented. It is shown that the expert system can analyze both metallic and composite materials. For composite materials a unidirectional orthotropic composite material is designed on the basis of the composite materials database and its properties at the existing flow temperatures are predicted. The main advantage of using this method is time and labor saving in the process of designing new aircraft engines and their main parts.

About the authors

D. A. Akhmedzyanov

Ufa State Aviation Technical University

Author for correspondence.
Email: ada@ugatu.ac.ru

Doctor of Science (Engineering)

Dean of the Aviation Engines, Power Engineering and Transport Faculty

Russian Federation

A. E. Kishalov

Ufa State Aviation Technical University

Email: kishalov@ufanet.ru

Candidate of Science (Engineering)

Associate Professor of  the Department of Aviation Heat Power Engineering and Thermal Engineering

Russian Federation

K. V. Markina

Ufa State Aviation Technical University

Email: markina_kseniya@mail.ru

Postgraduate student of the Department of Aviation Engines

Russian Federation

References

  1. Kishalov A.E., Akhmedzyanov D.A., Markina K.V. Expert system for material selection, coatings and other surface preparation of elements of the basic units of aviation GTE. Molodezhnyy Vestnik UGATU. 2012. No. 4(5). P.17-25. (In Russ.)
  2. KishalovA.E., Dudareva N.Y. Coatings and surface modification techniques to improve the reliability GTE parts. Molodezhnyy Vestnik UGATU. 2012. No. 4 (5). P.43-49. (In Russ.)
  3. Akhmedzyanov D.A., Kishalov A.E., Markina K.V., Ignatyev O.I. Expert system for automated selection of materials, coatings and other preparation types of main parts surface and aviation gas turbine engine assemblies. Modern problems of science and education. 2013. No. 5. Р. 57. (In Russ.)
  4. Kishalov A.E., Akhmedzyanov D.A., Markina K.V. Thermal gas modeling, preliminary strength analysis and the choice of materials, coatings and other surface preparation major parts and assembly units of the gas turbine engines running at the design stage. Youth herald USATU. No. 1 (10). P. 19-26. (In Russ.)
  5. Kishalov A.E., Markina K.V., Ignatyev O.I. Experimental check of expert system functionality for automated selection of materials, coatings and other preparation types of the main surface parts and aviation gas turbine engine assemblies. Modern problems of science and education. 2013. No. 5. Р. 58. (In Russ.)
  6. Solovyov P.V., Polezhaev N.I., Shamsutdinov A.A. On the question of predicting the mechanical properties of fiber composite materials in a wide temperature range. Molodezhnyy Vestnik UGATU. 2013. No. 4 (9). P. 5-11. (In Russ.)
  7. Kishalov A.E., Markina K.V., Ignatiev O.I. Certificate of official registration of the computer program № 2014610727. An expert system for the selection of materials of main parts of aircraft jet engines. Moscow: Rospatent Publ., 2014. (In Russ.)

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