| ZHENG Hua-lei，CAI Jian-bing，HUANG Xing.Turboshaft Thermodynamic Cycle Analysis Based on Multi-Design Point Method[J].航空发动机,2023,49(1):41-46 |
| Turboshaft Thermodynamic Cycle Analysis Based on Multi-Design Point Method |
| DOI： |
| Key Words:thermodynamic cycle analysis single design point method multi-design point method performance requirements technology limits turboshaft |
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| Abstract:A multi-design point method was developed to investigate the thermodynamic cycle analysis utilizing multiple performance
requirements and multiple constraints in the aircraft engine design process. This paper illustrates the construction and solution process to
perform on-design cycle analysis at more than one operating conditions. Cycle design spaces of a single rotor gas generator turbshaft engine
with a free power turbine created by the two different design methods were examined. Analysis of the design space demonstrates that the
conflict between technology limits and performance requirements at off design operating conditions makes some region of design space，
maybe contains the optimum candidate engine，created by single design method infeasible，in the meanwhile，multi-design point method，
which incorporates multiple（all）operating conditions where performance requirements and constrains are specified，can set the design
variables at the appropriate operating conditions while meeting the specified performance requirements and constraints for all operating con?
ditions . |
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