Results 1 to 10 of about 34,643 (268)

Theory and calculation of parameters of the detonation engine thermodynamical cycle

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The ideal thermodynamic cycle of a detonation engine is substantiated and a method of computing the engine parameters is presented. In the ideal cycle the processes of gas compression and expansion are adiabatic.
A. V. Grigoriev   +3 more
doaj   +3 more sources

Multi-Objective Optimization Design of Adaptive Cycle Engine with Serpentine 2-D Exhaust System Based on Infrared Stealth

open access: yesAerospace, 2023
In the overall design process of the turbofan engine, it has become crucial to address the challenge of selecting design parameters that not only meet the flight thrust demand but also enhance engine economy.
Haoying Chen, Yifan Wang, Haibo Zhang
doaj   +1 more source

Effects of key parameters on performance of a pre-cooled core engine based on the closed helium cycle

open access: yesFrontiers in Mechanical Engineering, 2023
A pre-cooled combined engine based on a closed helium (He) cycle offers high specific thrust and high specific impulse. Therefore, evaluation of the performance of such an engine is crucial for engine applications and key technology research.
Ma Tong-Ling   +7 more
doaj   +1 more source

Evolutionary auto-design for aircraft engine cycle

open access: yesComplex & Intelligent Systems, 2023
Traditional engine cycle innovation is limited by human experiences, imagination, and currently available engine component performance expectations. Thus, the engine cycle innovation process is quite slow for the past 90 years. In this work, we propose a
Xudong Feng   +3 more
doaj   +1 more source

An approach to estimate CCV (cycle-to-cycle variation) of effective energy output of thermal engine: A case study on a high speed gasoline engine

open access: yesCase Studies in Thermal Engineering, 2021
Cycle-to-cycle variations (CCV) of engine (or other power sources) effective power output is a crucial parameter for engine itself and connecting machines, but limited by the response characteristic of measuring instrument, it is still an unattainable ...
Yangyang Chen   +3 more
doaj   +1 more source

PRECISION DIAGNOSTICS OF A DIESEL ENGINE UNDER AGRICULTURAL TRACTOR OPERATING CONDITIONS [PDF]

open access: yesTransport Problems, 2023
This paper presents a method for the precise diagnosis of a diesel engine in an agricultural tractor based on the analysis of efficiency changes and parameters characterizing the process of fuel-air mixture preparation.
Oleksandr VRUBLEVSKYI   +2 more
doaj   +1 more source

Life Test Optimization for Gas Turbine Engine Based on Life Cycle Information Support and Modeling

open access: yesEnergies, 2022
The task of choosing the modes and duration of life tests of complex technical objects, such as aircraft engines, is a complex and difficult-to-formalize task.
Sagit Valeev, Natalya Kondratyeva
doaj   +1 more source

Investigation of Integrated Selection of Optimum Engine Cycle Parameters [PDF]

open access: yesVolume 2: Aircraft Engine; Marine; Microturbines and Small Turbomachinery, 1987
From the viewpoint of systems engineering, a method for integrated selection of the optimal engine cycle parameters and control scheme to satisfy the flight requirement of an aircraft is given. This method concerns the matching and interaction of the engine with the aircraft.
Zhang Jin   +3 more
openaire   +1 more source

Effects of design and operating parameters on the performance of a quasi-realistic Diesel cycle engine

open access: yesInternational Journal of Automotive Engineering and Technologies, 2021
Although Diesel engines have begun to be abandoned in the automotive industry due to the emission legislations of the world, they are still widely used in generators, work machines, agricultural machines, and heavy vehicles due to their high power density and thermal efficiency.
Bayram KILIÇ, Emre ARABACI
openaire   +3 more sources

Structural Efficiency Analysis of a Piston for Aviation Engines

open access: yesAerospace, 2022
The high-performance piston has a great impact on the performance parameters of the engine. The rapid design of a high-performance piston can shorten the research and development cycle and lower the experimental cost.
Zhongjian Pan, Qinghua He, Xiaobing Pang
doaj   +1 more source

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