Method for determiming the costs to ensure a given probability of failure-free operation of a gas turbine unit
Abstract
The article considers the method of determining the cost of equivalent-cyclic tests that confirm the required mean time between failures (MTBF) of a ship's gas turbine engine (GTE); with failure eliminated in operation and providing a given probability of failure-free operation of the gas-gas turbine unit. Comparison of costs for different variants of GTE and variants of the power plant based thereon have been carried out. The methodology for calculating the failure-free operation of a combined or all-mode gas turbine unit has been developed using a reliability model based on a continuous homogeneous Markov chain, for which the system of differential equations of GTU reliability — the system of Kolmogorov equations — has been solved. Recommendations have also been given for determining the number of gas-hours to be worked by the GTE during preliminary tests and (or) pilot operation to ensure the required MTBF with a given confidence probability. An example of probability calculation for failure-free operation of GTU has been given.
About the Authors
M. N. Burov
Soloviev Rybinsk State Aviation Technical University, PJSC UEC-Saturn
Russian Federation
Russian Federation
PhD
Rybinsk
V. A. Ponomarev
Soloviev Rybinsk State Aviation Technical University, PJSC UEC-Saturn
Russian Federation
Russian Federation
PhD, associate professor
Rybinsk
M. Yu. Vladimirov
Soloviev Rybinsk State Aviation Technical University
Russian Federation
Russian Federation
Rybinsk
References
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2. Burov M.N., Ponomarev V.A. Metod rascheta kriteriya effektivnosti morskikh GTD v sostave energeticheskoy ustanovki pri vybore ikh oblika [Method of calculating the efficiency criterion of marine gas turbine engines as part of a power plant when choosing their appearance]. — Bulletin of RGATU, Rybinsk, RGATU — 2020. — No. 4(55) — pp. 3 — 12.
3. Rybalko V.V. Otsenka bezotkaznosti korabel'noy gazoturbinnoy energeticheskoy ustanovki [Reliability assessment of the marine gas-turbine powerplant]. — Gas turbine engineering. December 2016, pp. 44 — 46.
4. Rukovodstvo po opredeleniyu nadezhnosti izdeliy aviatsionnoy tekhniki pri ikh razrabotke, ispytaniyakh i ekspluatatsii [Guide for determining the reliability of aeronautical engineering products in their development, testing and operation]. Part IV, issue 41000. — M.: MAP, MGA, CIAM, 1972, 107 p.
Review
For citations:
Burov M.N., Ponomarev V.A., Vladimirov M.Yu. Method for determiming the costs to ensure a given probability of failure-free operation of a gas turbine unit. Research Bulletin by Russian Maritime Register of Shipping. 2023;1(72/73):68-77. (In Russ.)
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