非标准大气条件下航空发动机地面起动性能

郭海红; 潘旭; 张志舒

非标准大气条件下航空发动机地面起动性能

中国航空工业集团公司沈阳发动机设计研究所, 沈阳 110015

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出版历程
- 收稿日期: 2012-09-29
- 刊出日期: 2013-06-28

Aero-engine ground starting performance at non-standard atmosphere

Shenyang Engine Design and Research Institute, Aviation Industry Corporation of China, Shenyang 110015, China

摘要

摘要: 为了得到非标准大气条件对航空发动机地面起动性能的影响,对非标准大气条件下空气涡轮起动机输出功率特性、标准大气条件下理想起动过程的影响因素进行了分析.研究了非标准大气条件对航空发动机地面起动性能影响,分析了大气温度对起动点火时间、起动时间、起动过程排气温度的影响.应用均匀加速原理,对某型涡扇发动机起动时间进行估算.基于地面台架起动试验条件,对试验数据统计分析:大气温度增加或降低,将增加起动点火及脱开时间.对大气温度在293.15K以上的开车次的平均起动时间与293.15K以下的平均起动时间进行对比,热天起动时间比冷天要短约3s,试验结果符合理论分析.
- 航空发动机 /
- 非标准大气 /
- 地面起动 /
- 空气涡轮起动机 /
- 均匀加速原理
Abstract: In order to gain the influences of the atmosphere condition on aero-engine starting characteristics, the output power of air turbine starter and ideal starting process at standard atmosphere were analyzed, and the diversities of ground starting performance at non-standard atmosphere were described, e.g.: differences of ignition time, start time and exhaust gas temperature. Besides, with use of constant acceleration method, the starting process was simulated. Based on grounding test conditions, test data was summarized. The ignition and breaking-up time was prolonged with the temperature drop or rise. Comparing the start time below or above 293.15K,it is 3s shorter in hot days than in cold days, so the results meet the theory analysis well.
- aero-engine /
- non-standard atmosphere /
- ground starting /
- air turbine starter /
- constant acceleration method

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参考文献(15)

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