Results 21 to 30 of about 174,121 (317)

A numerical investigation into the effect of engine bleed on performance of a single-spool turbojet engine. [PDF]

, 2008
A real time simulation model has been developed to investigate the effect of variable engine bleed on steady state and transient performance of a single-spool turbojet engine.
Whidborne, James F., Rahman, N. U.
core   +1 more source

Energy Consumption Model for Drilling Processes Based on Cutting Force

Applied Sciences, 2019
Accurate energy consumption modelling is critical for the improvement of energy efficiency in machining. Existing energy models of machining processes mainly focus on turning or milling, and there are few energy models for drilling.
Qi Wang, Dinghua Zhang, Bing Chen, Ying Zhang, Baohai Wu   +4 more
doaj   +1 more source

EXPERIMENTAL INVESTIGATION ON PERFORMANCE AND EMISSIONS OF AN AUTOMOTIVE DIESEL ENGINE FUELLED WITH BIOFUELS [PDF]

, 2013
Biodiesel is the biofuel most commonly used in Europe, covering approximately 80% of the biofuel market. However, the relationship between biofuel industry and food prices push towards the adoption of new generation biodiesels which could minimize the ...
VLACHOS, THEODOROS, Theodoros Vlachos, Vieira, T.F., VIEIRA, Tiago Figueiredo, FIGUEIREDO VIEIRA, TIAGO   +4 more
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Study on the Engagement Characteristics and Control Strategy of High Speed Difference Dry Friction Clutch

Machines, 2023
In the short/vertical take-off and landing aircraft propulsion system, the vertical take-off/landing and rapid flight are switched through the engagement and disconnection of the dry friction clutch. The smooth and rapid connection of the friction clutch
Chu Zhu, Zhi Chen, Zongcai Shi, Yingdong Zhang   +3 more
doaj   +1 more source

Simulation evaluation and verification of bird ingestion ability of turbofan engine

Hangkong gongcheng jinzhan
The bird-swallowing ability of engine must meet the requirements of the national military standard and airworthiness. It is necessary to propose a reliable method to assess the bird-swallowing ability of the engine before bird-swallowing tests, the test ...
JIA Chao, FAN Jie, JIANG Tongtong, CHEN Qian   +3 more
doaj   +1 more source

Signal Improvement for Underwater Measurement of Metal Samples Using Collinear Long-Short Double-Pulse Laser Induced Breakdown Spectroscopy

Frontiers in Physics, 2020
We employed a collinear long-short double-pulse laser induced breakdown spectroscopy (LS-DP-LIBS) to detect the underwater metal samples. The emission spectra, time-resolved signal, plasma images and sound characteristics of plasma shockwaves are ...
Minchao Cui, Minchao Cui, Minchao Cui, Yoshihiro Deguchi, Yoshihiro Deguchi, Zhenzhen Wang, Zhenzhen Wang, Changfeng Yao, Liang Tan, Dinghua Zhang   +9 more
doaj   +1 more source

Prediction of Chatter Stability in Bull-Nose End Milling of Thin-Walled Cylindrical Parts Using Layered Cutting Force Coefficients

Applied Sciences, 2023
During the bull-nose end milling operations of thin-walled structures, chatter usually occurs and adversely affects cutter performance, finished surface quality, and production efficiency. To accurately predict chatter stability, a suitable dynamic model
Xu Zhou, Congpeng Zhang, Minggang Xu, Baohai Wu, Dinghua Zhang   +4 more
doaj   +1 more source

Gas-turbine diagnostics using artificial neural-networks for a high bypass ratio military turbofan engine [PDF]

, 2004
The Tristar aircraft, operated by the Royal Air Force, fly many thousands of hours per year in the transport and air-to-air refuelling roles. A large amount of engine data is recorded for each of the Rolls-Royce RB211-524B4 engines: it is used to aid ...
Singh, Riti, Probert, Sydney D., Ogaji, Stephen O. T., Joly, R. B.   +3 more
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Combustion and Performance Characteristics of CI Engine Running with Biodiesel

, 2013
Biodiesel is one of the alternative fuels which is renewable and environmentally friendly and can be used in diesel engines with little or no modifications.
Gu, Fengshou, Zhang, C., Ball, Andrew, Ball, A. D., Gu, F., Mishra, R., Tesfa, Belachew, Tesfa, B., Mishra, Rakesh   +8 more
core   +1 more source

Performance and emissions of an agricultural diesel engine fuelled with different diesel and methyl ester blends

, 2010
This paper shows the results of an investigation carried out to assess the application of different fuels produced by blending diesel fuel with methyl ester obtained from mixture of 75% (v/v) sunflower oil and 25% (v/v) used cooking oil on a Kubota ...
Ponce de León, M.L., Sánchez-Girón Renedo, Víctor, Ponce de Leon, J. L., Camps Michelena, Manuel, Milan, I., Sanchez-Giron, V., Camps, M.   +6 more
core   +1 more source