| 通过进排气总压比EPR测推力的基本原理 |
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| 引用本文： | 崔济亚. 通过进排气总压比EPR测推力的基本原理[J]. 航空学报, 1989, 10(8): 443-446 |
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| 作者姓名： | 崔济亚 |
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| 作者单位： | 北京航空航天大学 |
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| 摘 要： | 涡轮发动机一直是通过转速来操纵的。可是同一转速而进气总温变时状态也变,低总温时增压比、推力就高,高总温时则相反。凶此按与推力较直接联系的参数来操纵就有可取之处。普惠公司JT3D-9D系列发动机已用进排气总压比、简称发动机总压比EPR=p5~*/p1~*作推力主操纵参数,而以转速操纵作备用。
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| 关 键 词： | EPR 相似推力 推力系数 共同工作线 |
| 收稿时间： | 1988-03-26; |
BASIC PRINCIPLES OF MEASURING THRUST THROUGH EXHAUST TO INLET TOTAL PRESSURE RAT10-ENGINE PRESSURE RATIO EPR |
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| Beijing University of Aeronautics and Astronautics Cui Jiya. BASIC PRINCIPLES OF MEASURING THRUST THROUGH EXHAUST TO INLET TOTAL PRESSURE RAT10-ENGINE PRESSURE RATIO EPR[J]. Acta Aeronautica et Astronautica Sinica, 1989, 10(8): 443-446 |
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| Authors: | Beijing University of Aeronautics and Astronautics Cui Jiya |
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| Affiliation: | Tsui-Chih-ya |
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| Abstract: | EPR (Engine Pressure Ratio) , I.E.the ratio of exhaust to inlet total Pressure, has already been used in a lot of jet engines as the main operation control in place of the traditional engine rpm.In this paper, specific formulas to determine similarized thrust R/Po from EPR and flight Mach number are derived, which could be used to calculate or measure the engine thrust. Engineering applications of the basic principles are discussed for reference. |
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| Keywords: | EPR similarized thrust thrust coefficient matching line. |
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