Results 81 to 90 of about 17,697 (215)

A conceptual framework for technological catch up of commercial turbofan engines in Iran based on Meta Synthesis approach [PDF]

بهبود مدیریت, 2019
The aircraft system and its sub-systems, including the engine, are components of complex product systems that highly costly and technology-intensive.
Ali Heidari, Manochehr Manteghi, Fakhredin Naderi, Mohammadreza Esmaili Givi   +3 more
doaj  

Study of unconventional aircraft engines designed for low energy consumption [PDF]

A study of unconventional engine cycle concepts, which may offer significantly lower energy consumption than conventional subsonic transport turbofans, is described herein.
Hirschkron, R., Johnston, R. P., Neitzel, R. E.   +2 more
core   +1 more source

Multi-Head Self-Attention-Based Fully Convolutional Network for RUL Prediction of Turbofan Engines

Algorithms
Remaining useful life (RUL) prediction is widely applied in prognostic and health management (PHM) of turbofan engines. Although some of the existing deep learning-based models for RUL prediction of turbofan engines have achieved satisfactory results ...
Zhaofeng Liu, Xiaoqing Zheng, Anke Xue, Ming Ge, Aipeng Jiang   +4 more
doaj   +1 more source

A generalized computer code for developing dynamic gas turbine engine models (DIGTEM) [PDF]

This paper describes DIGTEM (digital turbofan engine model), a computer program that simulates two spool, two stream (turbofan) engines. DIGTEM was developed to support the development of a real time multiprocessor based engine simulator being designed ...
Daniele, C. J.
core   +1 more source

A Scheduling Scheme of Linear Model Predictive Controllers for Turbofan Engines

IEEE Access, 2017
An adaptive model predictive controller with a new scheduling scheme for turbofan engines is proposed, which can transfer engine from one working state to the others within the flight envelope.
Xian Du, Xi-Ming Sun, Zhi-Min Wang, An-Ning Dai   +3 more
doaj   +1 more source

Multiple-Purpose Subsonic Naval Aircraft (MPSNA): Multiple Application Propfan Study (MAPS) [PDF]

Study requirements, assumptions and guidelines were identified regarding carrier suitability, aircraft missions, technology availability, and propulsion considerations. Conceptual designs were executed for two missions, a full multimission aircraft and a
Engelbeck, R. M., Havey, C. T., Klamka, A., Mcneil, C. L., Paige, M. A.   +4 more
core   +1 more source

Investigation of overall performance of turbofan engine with pulse detonation combustor in bypass duct

Xibei Gongye Daxue Xuebao
The performance model was established to study the performance of mixed exhaust turbofan engine with pulse detonation combustor (PDC) in the bypass duct.
PENG Chenxu, ZHENG Longxi, LU Jie, LUO Zhenkun, ZHANG Jiabo   +4 more
doaj   +1 more source

Effects of chemical equilibrium on turbine engine performance for various fuels and combustor temperatures [PDF]

A study was performed to quantify the differences in turbine engine performance with and without the chemical dissociation effects for various fuel types over a range of combustor temperatures.
Snyder, Christopher A., Tran, Donald H.
core   +1 more source

HMM-Based Method for Aircraft Environmental Control System Turbofan Rolling Bearing Fault Diagnosis

Shock and Vibration
In response to the high-noise, nonlinear, and nonstationary characteristics of vibration signals from aircraft environmental control system (ECS) turbofan rolling bearings, this paper proposes a diagnostic method for the degree of ECS turbofan bearing ...
Gang Yang, Yu Wang, Dezhao Qin, Rui Zhu, Qingpeng Han   +4 more
doaj   +1 more source

Health estimation of fan based on belief-rule-base expert system in turbofan engine gas-path

Advances in Mechanical Engineering, 2017
Fan is an important rotating part in turbofan engine gas-path. The health condition of fan has a great impact on the health status of the whole aero-engine. Based on belief-rule-base, a novel health estimation model is proposed for fan in turbofan engine
Xiaojing Yin, Zhanli Wang, Bangcheng Zhang, Zhijie Zhou, Zhi Gao   +4 more
doaj   +1 more source