Volume 33 Issue 10
Oct.  2018
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Turboshaft engine overall design method based onbalance of componentsdifficulty coefficients[J]. Journal of Aerospace Power, 2018, 33(10): 2465-2475. doi: 10.13224/j.cnki.jasp.2018.10.019
Citation: Turboshaft engine overall design method based onbalance of componentsdifficulty coefficients[J]. Journal of Aerospace Power, 2018, 33(10): 2465-2475. doi: 10.13224/j.cnki.jasp.2018.10.019

Turboshaft engine overall design method based onbalance of componentsdifficulty coefficients

doi: 10.13224/j.cnki.jasp.2018.10.019
  • Received Date: 2018-04-11
  • Publish Date: 2018-10-28
  • In order to complete the design of the fifth-generation turboshaft engine from the conceptual design stage to the preliminary design stage, the integrated design method based on the overall performance and size and mass of the turboshaft engine was studied. Through statistical evaluation of typical models of turboshaft engines at home and abroad, a database of technical parameters such as overall performance, overall structure, and the components aerodynamic/structure/strength/material properties of turboshaft engines was established; the concept of difficulty coefficient was proposed, and the technical parameters of the turboshaft engine were selected in the conceptual design stage using difficulty coefficient. An integrated design calculation model and program for the overall performance and size and mass of the turboshaft engine were developed, the overall performance of the tuboshaft engine was achieved under the constraints of the design criteria. Design of overall performance and other components performance, such as the aerodynamic/structural/strength/size/mass of the rotor components, was completed under the constraints of the design criteria. Results show that this design method can complete the overall design scheme of the turboshaft engine, and in this way, the fifth-generation turboshaft engine with 1500 kW shaft power was designed with specific fuel consumption (SFC) of 0.248kg/(kW·h) and P/W of 10.26kW/kg.

     

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