Results 121 to 130 of about 2,946 (146)

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
openaire   +1 more source

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

Near-field Film Thickness Measurements of an LPRE Swirl Injector Spray

47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2011
A novel approach to the measure of liquid film thickness in the near-field of a liquid rocket swirl injector spray was developed. Archived data were analyzed, wherein liquid mass flow was throttled over a range of 0.064 to 0.082 kg/s—corresponding to injection pressure drops of 0.80 to 1.26 MPa.
Chad Eberhart, David Lineberry, Robert Frederick   +2 more
openaire   +1 more source

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

Influence of LPRE on the size‐dependent phase velocity of sandwich beam including FG porous and smart nanocomposite layers

Polymer Composites, 2022
AbstractThis article evaluates the wave velocity of a leptadenia pyrotechnica rheological elastomer (LPRE) microbeam surrounded by micro piezoelectric and porosity of functionally graded materials' (FGMs) layers. Different models of graphene nano plates (GPLs) for reinforcing the face sheet are assumed by adopting Halpin–Tsai modified micromechanics ...
M. S. H. Al‐Furjan, X. S. Kong, L. Shan, Gholamreza Soleimani Jafari, A. Farrokhian, X. Shen, R. Kolahchi, Dipen Kumar Rajak   +7 more
openaire   +1 more source

Thrust and propellant mixture ratio control of open type LPRE using Q-ILC

2007 International Conference on Control, Automation and Systems, 2007
LPRE(Liquid Propellant Rocket Engine) is one of the important parts to control the motion of rocket. For operation of rocket in error boundary of the set-up trajectory, it is necessary to control the thrust of LPRE according to the required thrust profile and control the mixture ratio of propellants fed into combustor for the constant mixture ratio. It
null Young-Suk Jung, null Seung-Hyub Oh
openaire   +1 more source

New Concepts in Structural Analysis and Design of Double Walled LPRE Thrust Chambers

42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2006
thermal ratchetting. Details of exhaustive material characterization done for the thrust chamber materials are highlighted. Cyclic life prediction of the inner wall is done using the cumulative damage accumulation technique. Allowable number of hot runs for the chamber is arrived at after employing suitable factor of safety for these individual damage ...
A.K. Asraff, Sankar Sunil, R Muthukumar, T.J. Ramanathan   +3 more
openaire   +1 more source

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

Development of the algorithm for the movement of the measuring module of the system of automated non-destructive testing of the nozzle of a lpre

Дефектоскопия, 2023
The paper considers the development of the algorithm for the movement of the measuring module of the system of automated non-destructive testing of solder joints of the nozzle of a liquid propellant rocket engine (LPRE). The object of control, the flaws in soldered joints that arise during the manufacturing process, as well as the problems of ...
V. V Malyy, A. S Kostyukhin, A. V Fedorov, I. Y Kinzhagulov   +3 more
openaire   +1 more source

3D Design and Manufacturing Analysis of Liquid Propellant Rocket Engine (LPRE) Nozzle

2019
The innovation and development of 3D printing technology has benefitted aerospace industries in the design and fabrication of parts and model structure of aerospace products such as building rocket parts from engines to propellant tanks. The structure can be created with little or no generation of industrial waste, thereby reducing overall cost and ...
Samuel O. Alamu, Marc J Louise Caballes, Yulai Yang, Orlyse Mballa, Guangming Chen   +4 more
openaire   +1 more source