Results 11 to 20 of about 63,703 (327)

Research on thermomechanical fatigue life prediction of regenerative cooling thrust chamber

open access: yesXibei Gongye Daxue Xuebao, 2022
The ratcheting effect of the liner wall structure in the thrust chamber of liquid rocket engine under cyclic load is studied, and its service life is predicted.
HUANG Junfeng   +4 more
doaj   +1 more source

Use of cryogenic components of propellants for liquid-propellant rocket engines and in life support systems of manned space vehicles [PDF]

open access: yesMATEC Web of Conferences, 2020
The cited materials show the use of oxygen, hydrogen, liquefied natural gases (methane) and fluorine as components of the fuel for liquid-propellant rocket engines (LRE). The reasons for the need to use oxygen as an oxidizing agent are indicated.
Orlin Sergei A.
doaj   +1 more source

The Load Spectrum Compilation of Engine Vibration Fatigue Based on Frequency Rain-flow Counting Method

open access: yesHangkong gongcheng jinzhan, 2021
The traditional rain-flow counting method is suitable for conventional fatigue load calculation, and cannot retain the frequency information of vibration fatigue. Frequency is very important for vibration fatigue.
LI Binchao, TANG Jing, YIN Zhiping
doaj   +1 more source

Fault Detection and Diagnosis for Liquid Rocket Engines Based on Long Short-Term Memory and Generative Adversarial Networks

open access: yesAerospace, 2022
The development of health monitoring technology for liquid rocket engines (LREs) can effectively improve the safety and reliability of launch vehicles, which has important theoretical and engineering significance.
Lingzhi Deng, Y. Cheng, Yehui Shi
semanticscholar   +1 more source

Anaerobic external combustion thermal engines [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019
Anaerobic engines are air-independent engines used in rocket and space technology, in submarines and in regular public service facilities. In rocket and space technology, liquid and solid rocket and jet engines are used.
V. I. Karagusov
doaj   +1 more source

Investigations on an All-Oxide Ceramic Composites Based on Al2O3 Fibres and Alumina–Zirconia Matrix for Application in Liquid Rocket Engines

open access: yesAerospace, 2022
High performance ceramics, particularly Ceramic Matrix Composite (CMC) materials found their way into liquid rocket engines. Yet, so far, mainly carbide or nonoxide CMCs have been of interest.
C. Bach   +2 more
semanticscholar   +1 more source

The structure of knowledge base to support the development of low-thrust liquid-propellant rocket engines based on computer technologies

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2022
Some data on the knowledge base to support the development of low-thrust liquid-propellant rocket engines using computer technologies are presented. The structure of the base is proposed on the basis of characteristic features of engines, including the ...
V. V. Ryzhkov
doaj   +1 more source

Emission-Driven Hybrid Rocket Engine Optimization for Small Launchers

open access: yesAerospace, 2022
Hybrid rocket engines are a green alternative to solid rocket motors and may represent a low-cost alternative to kerosene fueled rockets, while granting performance and control features similar to that of typical storable liquid rocket engines.
Lorenzo Casalino   +3 more
doaj   +1 more source

A Reinforcement Learning Approach for Transient Control of Liquid Rocket Engines [PDF]

open access: yesIEEE Transactions on Aerospace and Electronic Systems, 2020
Nowadays, liquid rocket engines use closed-loop control at most near-steady operating conditions. The control of the transient phases is traditionally performed in open loop due to highly nonlinear system dynamics.
Günther Waxenegger-Wilfing   +3 more
semanticscholar   +1 more source

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