Application of evolutional methods to the solution of a turbojet engines compressors optimization tasks
Meniailov, postgraduate, dep. 304
National aerospace university named after N. Ye. Zhukovsky “KhAI»
An evolutional method for choice of a multistage axial compressor guide vanes control program is offered . Optimization is conducted with the purpose to providing of a maximal efficiency along the line of operating conditions at the determined stability level. The examined task behaves to the class of multiobjective tasks of parametrical optimization. Solution of the problem by downgrading it to the modification task is offered. Application of offered approach and adaptation procedures of the choice of genetic algorithm parameters, used in an evolutional method, provides the substantial decreasing of the rational decision search algorithm informative complication . The example of multistage axial compressor guide vanes control program choosing for modem turbojet engine of the passenger regional aiplane is considered.
The problem of assigning tolerances on the angles of the crowns of the compressor motor TV3-117 VMA-SBM-1B in order to ensure the confidence intervals given by the integral characteristics of the engine. With a standard deviation angles of the inlet guide vanes and the first four stages of the motor TV3-117 VMA-SBM-1B y_x=0.050 for modes n C=[0.85... 1.00] may be provided with the following values of standard deviations summary characteristics: y_p<0.15,yj<0,15, with a probability of PA=0.99. References: 1. Gas Turbine Engine Elements Systematic Improvement on the Base of Inverse Problem Concept by Stochastic Optimization Methods [Text] / M.L. Ugryumov, A.A.Tronchuk, V.E. Afanasjevska, A.V. Myenyaylov // Abstracts Book and CD-ROM Proceedings of the 20-th IS ABE Conference. - Gothenburg (Sweden). - 2Oil. 9p. (ISABE Paper No. 2011 1255). 1. Methodology and Tools of Information Technology of Turbo Fun Engine Axial Compressors System Improvement [Text] / K.M. Ugryumova, A.A.Tronchuck, M L. Ugryumov etc. II Abstracts Book and CD-ROM Proceedings of the 9-th Asian International Conference on Fluid Machinery. - Jeju, Korea. - 2007. 6 p. (AICFM9-055). 2. System Improvement of Turbomachines by the Method of Inverse Problems soJut/om searching [7ext] / K M, Ugryumova, A.V. Hastccv, M.L. Ugryumov etc. // (Umference Proceedings of the 7-th European Conference on 7 urbomachincry. - Athens (Greece). ~ 2007. P. 633 643 (ETC7 049).