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Relevant bibliographies by topics / Aerospike engines

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Journal articles

Academic literature on the topic 'Aerospike engines'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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Journal articles on the topic "Aerospike engines"

1

Meiss, Jan-Hendrik, and Eric Besnard. "Numerical Analysis of Curved Thrusters for Multichamber Aerospike Engines in Flight Conditions." Journal of Propulsion and Power 33, no. 4 (2017): 1002–19. http://dx.doi.org/10.2514/1.b36332.

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2

Ashley, Steven. "Bringing Launch Costs Down to Earth." Mechanical Engineering 120, no. 10 (1998): 62–68. http://dx.doi.org/10.1115/1.1998-oct-1.

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This article discusses the three federally funded projects that are underway to develop new rocket engines that can make it more affordable to send payloads into orbits. The new RS-68 propulsion system is Rocketdyne's entry in competition to power the US Air Force's new heavy-lift booster. The most ambitious of the new propulsion system designs is Rocketdyne's XRS-2200 linear aerospike engine, a seemingly nozzle-less oxygen/hydrogen powerplant that is designed to send the autonomously controlled NASA X-33 lifting body into orbit. The X-33 is being developed by Lockheed Martin Skunk Works, Palm

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3

Lewitowicz, Jerzy, Mirosław Kowalski, and Andrzej Żyluk. "Modern Diagnostics of Aircraft Gas Turbine Engines – Some Selected Issues / Nowoczesna Diagnostyka Lotniczych Silników Turbinowych - Wybrane Zagadnienia." Journal of KONBiN 29, no. 1 (2014): 33–40. http://dx.doi.org/10.2478/jok-2014-0004.

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Abstract In aeronautics, the question of maintaining the highest possible level of flight safety is the most crucial issue. This is the reason why the scientists, engineers, and aerospace/aviation engineering staff keep searching for ever newer and more reliable methods of increasing the safety level. Therefore, new methods - primarily nondestructive ones - to diagnose aircraft turbine engines are looked for. These methods are expected to prove useful for the real-time monitoring of actual health of the engine and its assemblies. The paper has been intended to outline the most recent methods o

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4

Zhou, P. L., and Y. Q. Qian. "Development of a modified diesel engine cycle." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 212, no. 2 (1998): 145–50. http://dx.doi.org/10.1243/0954407981525867.

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This paper presents an investigation of a novel type of diesel engine cycle, an approximate constant pressure cycle. The prototype engine is called the diesel engine with oil cushioned piston (DEOCP). In contrast to conventional engines, the DEOCP has a variable cylinder volume which is controlled automatically by the engine's cylinder pressure. The variable cylinder pressure is achieved by inserting a hydraulic cylinder into the engine's piston rod. The engine cylinder pressure is thus self-controlled and an ideal constant pressure cycle can theoretically be achieved. Computer simulations and

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5

Glowacki, Pawel Jan. "Aircraft piston engines on-condition exploitation." Aircraft Engineering and Aerospace Technology 90, no. 7 (2018): 1095–103. http://dx.doi.org/10.1108/aeat-01-2017-0042.

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Purpose Currently, in many countries, aviation safety regulations allow piston engines exploitation above Time Between Overhaul (TBO) recommended by manufacturers. Upon fulfillment of certain requirements, which are already included in the manufacturers’ documentation, TBO extension is granted. National Aviation Authority has approved exploitation of piston engines to something like quasi on-condition maintenance, which has no technical proof behind. This leads to the conclusion that the current, simple way of the engine’s life extension is not the best solution for maintaining flight safety.

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6

Clifton, David A., Peter R. Bannister, and Lionel Tarassenko. "A Framework for Novelty Detection in Jet Engine Vibration Data." Key Engineering Materials 347 (September 2007): 305–10. http://dx.doi.org/10.4028/www.scientific.net/kem.347.305.

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A novelty detection approach to condition monitoring of aerospace gas-turbine engines is presented, providing a consistent framework for on- and off-line analysis, each with differing typical implementation constraints. On-line techniques are introduced for observing abnormality in engine behaviour during aircraft flights, and are shown to provide early warning of engine events in real-time. Off-line techniques within the same analysis framework are shown to allow the tracking of single engines and fleets of engines from ground-based monitoring stations on a flight-by-flight basis. Results are

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7

Bhasha, Sanjeev Gautam, Parul Malik, and Purnima Jain. "Ceramic Composites for Aerospace Applications." Diffusion Foundations 23 (August 2019): 31–39. http://dx.doi.org/10.4028/www.scientific.net/df.23.31.

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Ceramic composites is playing crucial role to accomplish highly efficiently and cost effective equipment for aerospace industry. The instigation of ceramics into aircraft industry is a promising step towards virtuous future. Ceramics has a key role in innovation of highly competent material for space travel which is highly economical and environmentally sustainable. Advancement in making fuel efficient engines are necessity in present scenario due to the harmful emissions releases in the environment by burning of fuel to power up engine. The high temperature application of composites makes it

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8

Skliros, Christos. "A CASE STUDY OF VIBRATION FAULT DIAGNOSIS APPLIED AT ROLLS-ROYCE T-56 TURBOPROP ENGINE." Aviation 23, no. 3 (2020): 78–82. http://dx.doi.org/10.3846/aviation.2019.11900.

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Gas turbine engines include a plethora of rotating modules, and each module consists of numerous components. A component’s mechanical fault can result in excessive engine vibrations. Identification of the root cause of a vibration fault is a significant challenge for both engine manufacturers and operators. This paper presents a case study of vibration fault detection and isolation applied at a Rolls-Royce T-56 turboprop engine. In this paper, the end-to-end fault diagnosis process from starting system faults to the isolation of the engine’s shaft that caused excessive vibrations is described.

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9

Gosala, Dheeraj B., Cody M. Allen, Aswin K. Ramesh, et al. "Cylinder deactivation during dynamic diesel engine operation." International Journal of Engine Research 18, no. 10 (2017): 991–1004. http://dx.doi.org/10.1177/1468087417694000.

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Cylinder deactivation can be implemented at low loads in diesel engines to improve efficiency and aftertreatment thermal management through reductions in pumping work and airflow, respectively. The rate of increase of torque/power during diesel engine transients is limited by the engine’s ability to increase the airflow quickly enough to allow sufficient fuel addition to meet the desired torque/power. The reduced airflow during cylinder deactivation needs to be managed properly so as to not slow the torque/power response. This paper demonstrates that it is possible to operate a diesel engine a

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10

Yu, Bing, Wenjun Shu, and Can Cao. "A Novel Modeling Method for Aircraft Engine Using Nonlinear Autoregressive Exogenous (NARX) Models Based on Wavelet Neural Networks." International Journal of Turbo & Jet-Engines 35, no. 2 (2018): 161–69. http://dx.doi.org/10.1515/tjj-2017-0005.

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Abstract A novel modeling method for aircraft engine using nonlinear autoregressive exogenous (NARX) models based on wavelet neural networks is proposed. The identification principle and process based on wavelet neural networks are studied, and the modeling scheme based on NARX is proposed. Then, the time series data sets from three types of aircraft engines are utilized to build the corresponding NARX models, and these NARX models are validated by the simulation. The results show that all the best NARX models can capture the original aircraft engine’s dynamic characteristic well with the high

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