Sirenko F. Identification of gas turbine engines performances at sub-idle mode panel

Object - process of aircraft gas turbine engine starting; goal - development of the method that allows simulation of engine operation at starting range. The method is based on identification of engine performances using a priori known information and experimental data; methods - discrete deterministic mathematical modeling of engine working process, identification of dynamic systems, rig testing of gas turbine engines at special facilities; results - method to form mathematical models of working process of single shaft GTE at sub-idle range; novelty - A new method to create models that simulate single-shaft gas turbine engine operation at sub-idle range was proposed. The method is based on identification of static and dynamic performances of the engine using experimental data and a priori known information. The structure of the model that simulates gas turbine engine operation was improved by providing arbitrary choosing combustion chamber lighting and starter detaching time moments. Parameters of starter and fuel became input parameters of the model; Methods to simulate the way parameters of gas turbine engine change at transient modes got further development: structural-parametric unity of starting and operating modes models was provided; the degree of implementation - implemented in designing and developing of electronic automatic control and health management system of engines; industry - propulsion engineering.