Transient analysis of volume packing effects on turbofan engine

被引：1
|
作者：
Liu Chuankai [1 ]
Qiu Tian [2 ]
Ding Shuiting [2 ]
机构：
[1] Beijing Univ Aeronaut & Astronaut, Beijing Key Lab Safety Integrated Aircraft & Prop, Airworthiness Technol Res Ctr, Sch Transportat Sci & Engn, Beijing 100191, Peoples R China
[2] Beijing Univ Aeronaut & Astronaut, Beijing Key Lab Safety Integrated Aircraft & Prop, Airworthiness Technol Res Ctr, Sch Jet Propulsion, Beijing 100191, Peoples R China
来源：
2ND INTERNATIONAL SYMPOSIUM ON AIRCRAFT AIRWORTHINESS (ISAA) | 2011年 / 17卷
关键词：
airworthiness; aero-engine performance model; air-system; cavity; transient loads;
D O I：
10.1016/j.proeng.2011.10.068
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
An integrated turbofan model, capable of coupling engine performance prediction with air-system calculation, is established. Efforts are focused on predicting volume packing effects on turbofan engine both in acceleration and in deceleration process. Results show that the volumes in secondary air-system exert more impacts on transient loads, compared with those in main gas path. Due to disk cavities in air-system, the percentages of coolant flow for the turbines are significantly reduced in acceleration manoeuvre, which result in potential adverse transient thermal load on the engine. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Airworthiness Technologies Research Center NLAA, and Beijing Key Laboratory on Safety of Integrated Aircraft and Propulsion Systems, China
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页数：10
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