Results 31 to 40 of about 63,703 (327)
Research Progress of Decommissioned Solid Rocket Motor Charge Emptying and Recycling Technology [PDF]
Hangkong bingqiAs the service life of solid rocket engines comes to an end, their operational reliability and performance stability gradually decline. Effectively disposing of large numbers of retired solid rocket engines has become a critical issue.
Zhou Yaping, Lin Zhihui, Wang Maoyu, Dong Jun, Liu Tiansheng, Qiao Haitao
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Low-thrust liquid-propellant rocket engines as part of advanced ultralight rocket vehicle systems
Космические аппараты и технологии, 2021 This work examines the most promising design solutions for the creation of propulsion systems for ultra-light launch vehicles by small private enterprises in the rocket and space industry.
T. A. Basharina +4 more
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A Coupled Heat Transfer Calculation Strategy for Composite Cooling Liquid Rocket Engine
Aerospace, 2023 To better understand the characteristics of coupled heat transfer in liquid rocket engines, a calculation scheme is proposed in this paper. This scheme can simulate the coupled heat transfer processes, including combustion and flow in the thrust chamber,
Bo Xu +4 more
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Aerospace, 2023 This paper proposed a multi-objective, multi-disciplinary design optimization and multi-attribute evaluation method for the manned lunar lander descent stage.
Yang Liu +5 more
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JAPANESE JOURNAL OF MULTIPHASE FLOW, 1997 PURPOSE:To boost propellant to a high pressure without using a subcombustor by reheating a part of the propellant heated by the heat of a combustor by using a heat exchange means in a nozzle part. CONSTITUTION:The liquid hydrogen as fuel and liquid oxygen as oxidizer are pressurized to each high pressure by boosters 3 and 4.
openaire +2 more sources
Cryogenic Tribology of High-Speed Bearings and Shaft Seals in Liquid Hydrogen
Tribology Online, 2011 Liquid hydrogen (LH2) is excellent in extensive storage and transportation systems, such as being used as fuel in highly efficient liquid-rocket engines.
Masataka Nosaka
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Bridging the Technology Gap: Strategies for Hybrid Rocket Engines
Aerospace, 2023 Hybrid rocket propulsion, first demonstrated by the Russian GIRD-09 rocket in 1933, combines liquid oxidizer and solid fuel for thrust generation. Despite numerous advantages, such as enhanced safety, controllability, and potential environmental benefits,
Christopher Glaser +2 more
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Advanced Science, EarlyView.Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma +4 more
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Modelling Rocket System Performance Parameters
Academy Journal of Science and Engineering, 2022 What distinguishes the rocket system from airbreathing engines is that the rocket carries its own propellants, fuel and oxidants. The modern rocket was originally developed for ballistic missiles.
Nnorom Achara
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Analysis of low-thrust liquid rocket engines with a methane air pump unit
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016 The first airplane working on cryogenic fuel was developed in the USSR in early 1980s on the basis of the passenger aircraft Tu-154. It was then modified using a hydrogen engine installed instead of one of the three kerosene engines.
A. I. Ivanov +2 more
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