Results 41 to 50 of about 13,320 (264)

Optimizing the Cooling System of an LH2/LOX Rocket Engine using the Bees Algorithm [PDF]

مکانیک هوافضا, 2023
Upgrading the thermal efficiency of the cooling system of liquid rocket engines is one of the most significant and intricate problems in designing modern rocket engines in the missile industry.
Navid Bozorgan
doaj  

Comparative results of computational and theoretical study of the annular nozzle with a flat central body

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
One of the ways to improve specific characteristics of the power plant of a launch vehicle for ladeploying payload to the near-Earth space is to provide the possibility of operation of a fixed nozzle in the design mode over the whole active leg of the ...
A. A. Kirshina, A. A. Levikhin, A. Yu. Kirshin   +2 more
doaj   +1 more source

Variability analysis of ABS solid fuel manufactured by fused deposition modeling for hybrid rocket motors

Journal of Mechanical Engineering and Sciences, 2021
The process of fused deposition material (FDM) was used to manufacture propellant grains of Acrylonitrile Butadiene Styrene (ABS) as novel rocket fuel grain, with three types of geometry in the burning port.
J. A. Urrego P., F.A. Rojas M., J. R. Muñoz L.   +2 more
doaj   +1 more source

Collapsible nozzle extension for rocket engines Patent [PDF]

, 1970
Development of collapsible nozzle extension for rocket ...
Darrow, W. E., Jr., Ursery, B. C.
core   +1 more source

Shock Wave and Aeroelastic Coupling in Overexpanded Nozzle

Aerospace
The growing demand for increasing the engine power of a liquid rocket is driving the development of high-power De-Laval nozzles, which is primarily achieved by increasing the expansion ratio.
Haifeng Hu, Xinni Gao, Yushan Gao, Jianwen Yang   +3 more
doaj   +1 more source

Inverse Design of Highly Deformable Mechanical Metamaterial Based on Partitional Semi‐Random Optimization

Advanced Science, EarlyView.
This research presents a novel optimization method for the inverse design of flexible mechanical metamaterials, enhancing traditional strategies by evaluating deformation in subregions. Combining simulated annealing with a genetic algorithm, it improves design efficiency and enables customizable deformation paths.
Xueqing Cao, Zeang Zhao, Panding Wang, Shengyu Duan, Hongshuai Lei   +4 more
wiley   +1 more source

Annular rocket motor and nozzle configuration Patent [PDF]

, 1962
High thrust annular liquid propellant rocket engine and exhaust nozzle ...
Connors, J. F.
core   +1 more source

Numerical Analysis of Ejector Flow Performance for High-Altitude Simulation

Aerospace
In this study we perform a computational numerical analysis to examine the flow characteristics of a system composed of a rocket engine, supersonic diffuser, and ejector system.
Chae-Hyoung Kim, Chang-Su Park
doaj   +1 more source

Ti3C2Tx MXene‐Zirconium Diboride Based Ultra‐High Temperature Ceramics

Advanced Science, EarlyView.
This study demonstrates the effectiveness of Ti3C2Tx MXenes as additives in ultra‐high‐temperature ceramics (ZrB₂), enhancing densification, reducing oxygen content, and improving mechanical properties. Through surfactant‐free electrostatic self‐assembly and spark plasma sintering, MXenes enabled the formation of a core–shell microstructure, resulting ...
Srinivasa Kartik Nemani, Nicola Gilli, Steven Goldy, Ankit Kumar, Yooran Im, Austin J. Vorhees, Brian C. Wyatt, Nithin Chandran BS, Nikhilesh Chawla, Garritt J. Tucker, Laura Silvestroni, Babak Anasori   +11 more
wiley   +1 more source

Method and apparatus for securing to a spacecraft Patent [PDF]

, 1970
Method and apparatus for connecting two spacecraft with probe of one inserted in rocket engine nozzle of other ...
Lauderdale, W. R., Warren, A. P.
core   +1 more source