METHOD OF DESIGNING PROPULSION PERFORMANCE MODEL FOR RECIPROCATING ENGINE AIRCRAFT USING TURBOCHARGER ENGINE

摘要

The purpose of the present invention is to provide a designing method for a propulsion performance model for a small reciprocating engined aircraft using a turbocharger engine, wherein the designing method is provided to design a performance model for a turbocharger engine applied to a conceptual design of the small aircraft by forming an off-design performance by analyzing the features of the reciprocating engine used for the small aircraft and build an integrated propulsion performance model by integrating an optimal propeller which forms a propeller performance curve of the engine. According to the present invention, the designing method for the propulsion performance model for the small reciprocating engined aircraft using a turbocharger engine comprises: a step (S100) of setting up performance index conditions of the reciprocating engine installed on the aircraft as an objective to be achieved; a step (S200) of modelling engine performance based on the performance index conditions, whereby an off-design performance according to the turbocharger engine is applied to the reciprocating engine of the small craft; a step (S300) of analyzing the engine performance according to the modelled turbocharger engine; a step (S400) of designing the shape of a propeller based on the analyzed engine performance; a step (S500) of analyzing the performance of the designed shape of the propeller; and a step (S600) of modelling the integrated propulsion performance of the engine and the propeller based on the performance of the analyzed shape of the propeller.