On the of power plant mass evaluation in the problem of aircraft turboprop operating procedure optimization

Аuthors

Grigor'ev V. A.^1*, Zagrebel'nyi A. O.^1**, Kuznetsov S. P.^2***

1. Samara National Research University named after Academician S.P. Korolev, 34, Moskovskoye shosse, Samara, 443086, Russia
2. United Engine Corporation “Saturn”, 163, Lenin av., Rybinsk, Yaroslavl region, 152903, Russia

*e-mail: grigva47@gmail.com
**e-mail: zao_sam156@mail.ru
***e-mail: saturn@npo-saturn.ru

Abstract

This paper considers the role and place of mathematical model of a turboprop engine power plant mass generation in the problem of gas turbine engine operating procedure optimization at the stage of initial design. The mass of a power plant with turboprop is one of the major components, actually defining parameters matching of an aircraft and its engine, in the course of forming a takeoff weight of an aircraft, which indirectly defines the costs of material resources to create an entire aircraft designed system. Moreover, in the performance of parametric studies the project weight of a power plant should be estimate by turboprop parameters. However, such dependencies hitherto are underresearched. Thus, the evaluation of the engine weight dependencies on its operating procedure parameters is carried out based on either integrated data on generalized statistics on completed designs, or on weight parametric models, as far as more precise information is not available at this stage. We compared a number of state-of-the-art approaches to evaluation of the mass of a power plant at the initial design stage. We proposed also several variants of power plant mass models, differing from each other by the number of parameters required for calculation at the initial design stage and accuracy of the models themselves. A comparative analysis of mathematical models reveals their advantages and disadvantages for different stages of the design.

Keywords:

turboprop engine, power plant, the mathematical model, initial design

References

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