Results 181 to 190 of about 25,713 (266)

Design optimization of bellow joints used in liquid propellant rocket engines

Materials Testing
Bellow joints are frequently used in hydraulic lines, constructions, and various areas such as nuclear stations to absorb the energy caused by flow and external forces, provide flexibility to the lines, and prevent damages such as cracking and ...
Erdem Acar, Oğulcan Öztürkler
semanticscholar   +1 more source

Liquid-propellant rocket abort fire model.

Journal of Spacecraft and Rockets, 1971
During a rocket launch pad abort, a hazardous payload material can be subjected to a severe thermal environment from the resulting fireball. A model has been developed which specifies heat flux from the fireball as a function of time for any initial propellant quantity.
B. E. BADER, A. B. DONALDSON, H. C. HARDEE   +2 more
openaire   +1 more source

Liquid-Propellant Rocket Power Plants

Journal of Fluids Engineering, 1947
Abstract This paper discusses some of the general features of liquid-propellant rocket power plants, and the propellant systems which have been developed. The object of the discussion is to call attention to problems requiring solution in order to improve the reliability and performance of liquid-propellant rocket power plants.
openaire   +1 more source

Liquid Propellant Rocket Development

Journal of the American Rocket Society, 1946
Liquid Propellant Rocket Development" By M. W. NESBITT Chief Engineer, Reaction The subject of liquid propellant rocket development is one which has become greatly broadened in the past three years. In order to cover each phase of liquid rocket development in detail it would be necessary to spend considerably more time than is presently available ...
openaire   +1 more source

Liquid-Propellant Rocket Engine Injector Dynamics

Journal of Propulsion and Power, 1998
The dynamic characteristics of liquid-rocket injectors in the presence of intense combustion-chamber and propellant feed-line oscillations are discussed. Liquid-propellant injectors always function in nonsteady e ow environments and are therefore considered as a dynamic component of an engine.
Vladimir G. Bazarov, Vigor Yang
openaire   +1 more source

The Multichannel Optical Spectrometer for Diagnostics of the Liquid Propellant Rocket Engine

2019 Wave Electronics and its Application in Information and Telecommunication Systems (WECONF), 2019
The multichannel spectral device carries out the contactless spectrum analysis of an optical signals is considered in this paper. This device allows researching sources of optical radiation with which the direct contact is impossible or undesirable.
M. Vaganov, V. Kazakov
semanticscholar   +1 more source

Derivation and Analysis of a State-Space Model for Transient Control of Liquid-Propellant Rocket Engines

International Conference on Mechanical and Aerospace Engineering, 2018
A dynamic model of a liquid-propellant rocket engine has been developed in this paper, with the future purpose of meeting the more demanding requirements of rocket-engines control forced by the new reusability scenarios.
Sergio Pérez-Roca, N. Langlois, J. Marzat, H. Piet-Lahanier, M. Galeotta, F. Farago, S. L. Gonidec   +6 more
semanticscholar   +1 more source

Particle swarm algorithm-based damage-mitigating control law analysis and synthesis for liquid-propellant rocket engine

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2018
The damage-mitigating control is a novel technique to ameliorate the reliability and safety of liquid-propellant rocket engines by achieving an optimized trade-off level between overall dynamic performance of the liquid-propellant rocket engine and ...
Y. Cheng, Jianjun Wu
semanticscholar   +1 more source

Application of Improved PSO-BP Neural Network in Fault Detection of Liquid-Propellant Rocket Engine

2018 IEEE International Conference on Mechatronics and Automation (ICMA), 2018
Because liquid-propellant rocket engine (LRE) is working in complex environment, the reliability of some traditional fault detection methods is low due to the characteristics of limited fault samples, small samples, high coupling and nonlinear variation ...
Ningning Li, Wei Xue, Songbo Zhao, Qiang Gao, Dahua Li, Liang Xu   +5 more
semanticscholar   +1 more source

Design of liquid-propellant rocket engines

Journal of Machinery Manufacture and Reliability, 2012
A design method for liquid-propellant rocket engines is proposed, on the basis of models adjusted in response to test results. This method increases the reliability of the results and reduces ground testing of the motors. The effectiveness of the method is confirmed by ground testing and flight experience with the motors developed by Salyut Design ...
openaire   +1 more source