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Trends in aircraft engines. Trends in aircraft gas turbines and subsonic engines

Journal Article:

Abstract

While the emphasis of commercial, large aircraft engines is placed on low fuel consumption at high subsonic flight and the turbofan engines with high bypass ratio are dominating, high speed turboprop (ATP) of Mach 0.85 class with low fuel consumption are emerging. UHB with bypass ratio of 15 - 20 are planned with expection for application to intermediate size commercial planes. The pressure ratio is continuously rizing for improved cycle efficiency, reaching 35 - 40 in highest cases. Trends in design technique include: Use of computational aerodynamics and application of two-dimensional structural analysis and the digital simulation of engine characteristics. In the field of large, high bypass turbofan, serious competition is seen between GE and PNA at the thrust level of 5 - 60,000 pounds. Several engines for fighting planes have been approved in the type test and accepted as candidates for next generation of fighting planes including Japan. (15 figs, 36 refs)
Authors:
Publication Date:
Jun 10, 1988
Product Type:
Journal Article
Reference Number:
NEDO-88-911082; EDB-89-002286
Resource Relation:
Journal Name: Nippon Gasutabin Gakkaishi; (Japan); Journal Volume: 16:61
Subject:
33 ADVANCED PROPULSION SYSTEMS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; AIRCRAFT COMPONENTS; GAS TURBINE ENGINES; RAMJET ENGINES; TURBOJET ENGINES; COMPUTERIZED SIMULATION; COMPUTER CALCULATIONS; COMPRESSION RATIO; ENERGY CONSERVATION; FUEL CONSUMPTION; ENERGY CONSUMPTION; ENGINES; HEAT ENGINES; INTERNAL COMBUSTION ENGINES; SIMULATION; 330100* - Internal Combustion Engines; 320201 - Energy Conservation, Consumption, & Utilization- Transportation- Air & Aerospace
OSTI ID:
6713672
Research Organizations:
Ishikawajima-Harima Heavy Industries Co., Ltd., Tokyo, Japan
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: NGGAE
Submitting Site:
NEDO
Size:
Pages: 7-17
Announcement Date:

Journal Article:

Citation Formats

Murashima, Kanji. Trends in aircraft engines. Trends in aircraft gas turbines and subsonic engines. Japan: N. p., 1988. Web.
Murashima, Kanji. Trends in aircraft engines. Trends in aircraft gas turbines and subsonic engines. Japan.
Murashima, Kanji. 1988. "Trends in aircraft engines. Trends in aircraft gas turbines and subsonic engines." Japan.
@misc{etde_6713672,
title = {Trends in aircraft engines. Trends in aircraft gas turbines and subsonic engines}
author = {Murashima, Kanji}
abstractNote = {While the emphasis of commercial, large aircraft engines is placed on low fuel consumption at high subsonic flight and the turbofan engines with high bypass ratio are dominating, high speed turboprop (ATP) of Mach 0.85 class with low fuel consumption are emerging. UHB with bypass ratio of 15 - 20 are planned with expection for application to intermediate size commercial planes. The pressure ratio is continuously rizing for improved cycle efficiency, reaching 35 - 40 in highest cases. Trends in design technique include: Use of computational aerodynamics and application of two-dimensional structural analysis and the digital simulation of engine characteristics. In the field of large, high bypass turbofan, serious competition is seen between GE and PNA at the thrust level of 5 - 60,000 pounds. Several engines for fighting planes have been approved in the type test and accepted as candidates for next generation of fighting planes including Japan. (15 figs, 36 refs)}
journal = {Nippon Gasutabin Gakkaishi; (Japan)}
volume = {16:61}
journal type = {AC}
place = {Japan}
year = {1988}
month = {Jun}
}