Results 21 to 30 of about 5,412,680 (360)

Review of multimode space propulsion

, 2020
Multimode propulsion is the integration of two or more propulsive modes with shared propellant into a single spacecraft propulsion system. Multimode propulsion is emerging as an enabling technology that promises enhanced capabilities for spacecraft and ...
J. Rovey, Christopher T. Lyne, Alex J. Mundahl, Nicolas Rasmont, M. S. Glascock, Mitchell J. Wainwright, S. Berg   +6 more
semanticscholar   +1 more source

Data-driven sparse modeling of oscillations in plasma space propulsion [PDF]

Machine Learning: Science and Technology
An algorithm to obtain data-driven models of oscillatory phenomena in plasma space propulsion systems is presented, based on sparse regression (SINDy) and Pareto front analysis.
Borja Bayón-Buján, M. Merino
semanticscholar   +1 more source

Flame characteristics of a high-pressure LOX/H2 rocket combustor with large optical access

Case Studies in Thermal Engineering, 2021
Hot fire tests were performed with a newly developed single-injector research combustor featuring a large optical access (255 × 38 mm) for flame imaging.
Jan Martin, Wolfgang Armbruster, Robert Stützer, Stephan General, Bernhard Knapp, Dmitry Suslov, Justin Hardi   +6 more
doaj   +1 more source

Designing displaced lunar orbits using low-thrust propulsion [PDF]

, 2010
The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new space science mission concepts such as solar system ...
Colin R. McInnes, Farquhar R., Gómez G., Gómez G., Jules Simo, Leipold M., Roy A. E., Simo J., Thurman R., Vonbun F.   +9 more
core   +1 more source

Development of a Laser Micro-Thruster and On-Orbit Testing

Aerospace, 2023
Laser micro-thrust technology is a type of propulsion that uses a laser beam to ablate a propellant such as a metal or plastic. The ablated material is expelled out the back of the spacecraft, generating thrust.
Jifei Ye, Sibo Wang, Hao Chang, Yanji Hong, Nanlei Li, Weijing Zhou, Baoyu Xing, Bangdeng Du, Chengyin Xie   +8 more
doaj   +1 more source

Perspectives, frontiers, and new horizons for plasma-based space electric propulsion

Physics of Plasmas, 2020
There are a number of pressing problems mankind is facing today that could, at least in part, be resolved by space systems. These include capabilities for fast and far-reaching telecommunication, surveying of resources and climate, and sustaining global ...
I. Levchenko, Shuyan Xu, Stéphane Mazouffre, Dan R. Lev, Daniela Pedrini, Dan M. Goebel, Laurent Garrigues, F. Taccogna, K. Bazaka   +8 more
semanticscholar   +1 more source

Facile Preparation of a Novel HfC Aerogel with Low Thermal Conductivity and Excellent Mechanical Properties

Gels, 2023
Aerogels emerge as captivating contenders within the realm of high-temperature thermal resistance and thermal insulation. Nevertheless, their practical applications are usually constrained by their inherent brittleness when subjected to rigorous ...
Wei Wang, Zhanwu Wu, Shicong Song, Qi You, Sheng Cui, Weimin Shen, Guoqing Wang, Xuanfeng Zhang, Xiaofei Zhu   +8 more
doaj   +1 more source

Comparison of Submillimeter Spot Ablation of Copper and Nickel by Multipulse Picosecond and Femtosecond Laser

Metals, 2022
The current transmission and reflection laser ablation micropropulsion modes have the problem of a complex working medium supply system in engineering. Therefore, we propose large-spot laser ablation with a one-dimensional supply mode. In order to verify
Mingyu Li, Jifei Ye, Lan Li, Bangdeng Du, Ying Wang, Heyan Gao, Chenghao Yu   +6 more
doaj   +1 more source

Analytical Framework for Staging of Space Propulsion Systems

Journal of Propulsion and Power, 2020
Staging of space propulsion systems would allow lifetime limitations inherent to small propulsion systems to be bypassed in order to enable high-ΔV capabilities for small spacecraft, in particular ...
Oliver Jia-Richards, P. Lozano
semanticscholar   +1 more source

Study of Tensile Strength of Aluminum Alloy Caused by Pulsed Laser Drilling

Metals, 2022
In the process of pulsed laser drilling, the material properties in the heat-affected zone will change due to the thermal effect of the laser. To study the effect of this change on the material tensile strength, two lasers were used to punch the standard
Heyan Gao, Ying Wang, Jifei Ye, Lan Li, Bangdeng Du, Sai Li, Mingyu Li   +6 more
doaj   +1 more source