Academic literature on the topic 'Advanced Propulsion'

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Journal articles on the topic "Advanced Propulsion"

1

George, Daweel. "Advanced space propulsion concepts." Acta Astronautica 16 (January 1987): 113–23. http://dx.doi.org/10.1016/0094-5765(87)90099-3.

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2

Seitz, A., D. Schmitt, and S. Donnerhack. "Emission comparison of turbofan and open rotor engines under special consideration of aircraft and mission design aspects." Aeronautical Journal 115, no. 1168 (2011): 351–60. http://dx.doi.org/10.1017/s000192400000587x.

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Abstract An integrated parametric model involving the design of propulsion system, airframe and flight mission is presented. Based hereon, the carbon dioxide (CO2) emission characteristics of advanced direct-drive turbofan and open rotor powered aircraft are analysed against pertinent aircraft and propulsion system design parameters. In addition, initial concept-specific trend statements on nitrogen oxides (NOx) as well as propulsor noise emission characteristics are derived. The obtained results contribute to a better understanding of more appropriate aircraft design attributes for advanced system architectures.
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3

Cruse, T. A., J. F. Unruh, Y. T. Wu, and S. V. Harren. "Probabilistic Structural Analysis for Advanced Space Propulsion Systems." Journal of Engineering for Gas Turbines and Power 112, no. 2 (1990): 251–60. http://dx.doi.org/10.1115/1.2906171.

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This paper reports on recent extensions to ongoing research into probabilistic structural analysis modeling of advanced space propulsion system hardware. The advances concern probabilistic dynamic loading, and probabilistic nonlinear material behavior. In both cases, the reported work represents a significant advance in the state-of-the-art for these topics. Random, or probabilistic loading is normally concerned with the loading described in power spectral density (PSD) terms. The current work describes a method for incorporating random PSD’s along with random material properties, damping, and structural geometry. The probabilistic material response is concerned with the prediction of nonlinear stress-strain behavior for physical processes that can be linked to the original microstructure of the material. Such variables as grain size and orientation, grain boundary strength, etc., are treated as random, initial variables in generating stochastic stress-strain curves. The methodology is demonstrated for a creep simulation.
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4

Reisz, Aloysius I. "To Go Beyond." Mechanical Engineering 130, no. 11 (2008): 42–45. http://dx.doi.org/10.1115/1.2008-nov-2.

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This article discusses experiments with an advanced electromagnetic engine that aims for high-speed, long-distance transportation to reach farther into space. Experimental work at Marshall Space Flight Center in Alabama is attempting to develop an electromagnetic engine designed to achieve higher velocities than current space-engine options and to last longer, too. Space engines with higher specific impulse will sense new science from deep space exploration quicker. In a way, higher specific impulse quickens our intelligence acquisition. Reisz Engineers and the University of Michigan are investigating the propulsive performances of an experimental advanced electromagnetic engine configuration. This electromagnetic propulsion configuration has a magnetic nozzle and the engine performance can be throttled. Electromagnetic propulsion systems can also be configured for operations in Earth space environment, and for lunar robotic and lunar mapping missions. Electromagnetic and fusion space engines promise fast and reliable propulsion systems, which will be needed if mankind is to pursue its exploration of the outer realms of our solar system and beyond.
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5

Herdrich, G., U. Bauder, A. Boxberger, et al. "Advanced plasma (propulsion) concepts at IRS." Vacuum 88 (February 2013): 36–41. http://dx.doi.org/10.1016/j.vacuum.2012.02.032.

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6

Bayandor, J., S. Abanteriba, and I. Bates. "An advanced zero-head hydro-propulsion." Renewable Energy 24, no. 3-4 (2001): 475–84. http://dx.doi.org/10.1016/s0960-1481(01)00031-3.

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7

Padture, Nitin P. "Advanced structural ceramics in aerospace propulsion." Nature Materials 15, no. 8 (2016): 804–9. http://dx.doi.org/10.1038/nmat4687.

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8

Garrison, P. W. "Advanced propulsion activities in the USA." Acta Astronautica 16 (January 1987): 357–66. http://dx.doi.org/10.1016/0094-5765(87)90124-x.

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9

Paton, Neil E. "Materials for advanced space propulsion systems." Materials Science and Engineering: A 143, no. 1-2 (1991): 21–29. http://dx.doi.org/10.1016/0921-5093(91)90722-y.

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10

Jiang, Jing-Wei, and Wei-Xi Huang. "Hydrodynamic design of an advanced submerged propulsion." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 18 (2019): 6367–82. http://dx.doi.org/10.1177/0954406219860166.

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A new kind of advanced submerged propulsion is automatically modeled and analyzed based on the hydrodynamic and cavitation performance. A mathematical algorithm is proposed to describe the fusion-duct, which is controlled by several design parameters, including section diameters, section lengths, and inlet shape and aspect ratio. The hydrodynamic performances of 13 cases with different parameter combinations are numerically simulated. The simulation is carried out by solving the Reynolds Average Navier-Stokes equations with STAR-CCM+, and the SST k-ω turbulence model is applied. The curves of rotor thrust and torque, stator thrust and duct resistance, along with efficiency and merit coefficient are obtained as functions of the advance coefficient and are compared for different cases. Meanwhile, the pressure distribution on both sides of the rotor and the flow field of intermediate section are systematically analyzed. To guide future designs, an impact factor is further defined and calculated to quantify the effects of different parameters. The results indicate that the section diameters have the most significant influence on hydrodynamic and cavitation performances.
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