Results 131 to 140 of about 3,009 (150)

DISTINCTIVE FEATURES OF SLM TECHNOLOGY APPLICATION FOR MANUFACTURING OF LPRE COMPONENTS

Journal of Rocket-Space Technology, 2021
In view of the growing competition in the modern market for rocket and space technology products, the issue of maximizing the cost reduction of the process of its production is urgent. In particular, the rocket engine is traditionally one of the costliest and technologically demanding rocket units, which basically reduces the problem of reducing the ...
Samir Shamsievich Vekilov, Volodymyr Ivanovich Lipovskyi, Roman Anatolevich Marchan, Oleg Evgenevich Bondarenko   +3 more
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COMPARISON AND ANALYSIS BETWEEN CONVENTIONAL AND ADDITIVE MANUFACTURING TECHNOLOGIES OF LPRE

System design and analysis of aerospace technique characteristics, 2022
The modern pace and development of rocket technology determine the emergence of high competition in the service market, as well as achievements in the field of scientific, design and industrial activities. Thus, in order to successfully design one of the most complex units of rocket products, liquid propellant rocket engines, one must be aware of the ...
S. Sh. Vekilov, V.I. Lipovskyi
openaire   +1 more source

Evaluation of the effect of ozone addition on the methane/oxygen combustion in a LPRE using CFD analysis

Procceedings of the 24th ABCM International Congress of Mechanicl Engineering, 2017
Francisco S. Forte Neto, Rene Gonçalves
exaly   +2 more sources

LPRE: Lost Speech Packet Recovery with Enhancement

2007 IEEE International Conference on Communications, 2007
In the Internet telephony, loss of IP packets causes instantaneous discontinuities in the received speech. In this paper, we have focused on finding an error resilient method for this problem. Our proposed method creates artificial correlation between speech samples that pre-distorts the speech signal.
Hossein Ajorloo, Mohammad T. Manzuri Shalmani   +1 more
openaire   +1 more source

Modeling and simulation of staged comubstion cycle LPRE

2017 8th International Conference on Mechanical and Aerospace Engineering (ICMAE), 2017
Computer modelling and simulations are commonly used for analyzing complex systems such as launch vehicle propulsion system. The main objective of this research is to obtain a mathematical model for simulation of staged combustion cycle liquid propellant rocket engines (LPRE).
Mahyar Naderi, Liang Guozhu, Hasan Karimi   +2 more
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FEATURES OF THE ADAPTATION OF 3D PRINTED REGENERATIVE COOLING CHANNELS OF THE LPRE THROAT INSERTS

System design and analysis of aerospace technique characteristics, 2021
For modern LPREs there is a general tendency to find new approaches to decrease manufacturing costs as well as increasing engine efficiency. This is grounded on the fact that classically, the design of LPRE components represents assemblies which consist of several complex parts joined together by means of specific technological processes. Particularly,
S. Sh. Vekilov, V.I. Lipovskyi, R. A. Marchan   +2 more
openaire   +1 more source

Role of metal science in the history of creation of liquid-propellant rocket engines (LPRE)

Metal Science and Heat Treatment, 1999
exaly   +2 more sources

Static performance modeling and simulation of the staged combustion cycle LPREs

Aerospace Science and Technology, 2019
Abstract The objective of the current research is to analyze the steady state performance of staged combustion cycle liquid propellant rocket engines (SCCLPREs) and to provide a comprehensive case study with all the required technical input data.
Mahyar Naderi, Guozhu Liang
openaire   +1 more source

Formulation of Equations to Describe the Thermomechanical Response of a Gas to Transient, Spatially Resolved Thermal Energy Addition: Applications to LPRE Stability Physics

54th AIAA Aerospace Sciences Meeting, 2016
exaly   +2 more sources

Parametric instability analysis of sandwich plates with composite skins and LPRE based viscoelastic core

Journal of Sandwich Structures & Materials, 2020
In the present analysis, the parametric instability regions of a three-layered sandwich plate with thin composite skins and leptadenia pyrotechnica rheological elastomer (LPRE) core under axial periodic compressive load is studied for five different boundary conditions.
RK Ojha, SK Dwivedy
openaire   +1 more source