Autophage Engines: Toward a Throttleable Solid Motor

Yemets, Vitaly; Harkness, Patrick; Dron, Mykola; Pashkov, Anatoly; Worrall, Kevin; Middleton, M. G.

doi:10.2514/1.a34153

Cited by 8 publications

(9 citation statements)

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“…A given method makes it possible to ensure the guaranteed removal of an object within a specified time both in dense layers of the Earth's atmosphere and in higher orbit, including deep space. To implement a given method, tugs and various rocket propulsion systems are employed [6,7], including thrusters [8,9]. The disadvantage of this method is significant energy costs related to the need for fuel components to operate the systems that enable the removal process, which leads to the high cost of a particular implementation.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…The prospects for further research include construction of a combined method for removal using thrusters and electrojet engines. In addition, it is of considerable interest to develop a design-ballistic support for the removal using auto-firing rockets-carriers [8], less costly, and environmentally friendlier, compared to conventional rocket-carriers.…”

Section: Discussing the Influence Of Ballistic Aspects On Efficiency mentioning

confidence: 99%

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Analysis of ballistic aspects in the combined method for removing space objects from the nearEarth orbits

Dron

Golubek

Dubovik

et al. 2019

EEJET

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Discussing the Influence Of Ballistic Aspects On Efficiency mentioning

confidence: 99%

Analysis of ballistic aspects in the combined method for removing space objects from the nearEarth orbits

Dron

Golubek

Dubovik

et al. 2019

EEJET

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“…Thus, article [16] addresses the development of the design and ballistic maintenance for the flight of an autophase launch vehicle, taking into consideration the peculiarities of its JPS operation. Works [17,18] report the results of testing an auto-phase JPS. Research is also underway to find the optimal chemical composition of fuel for the autophase launch vehicles [19].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of the combined method to de-orbit space objects using an electric rocket propulsion system

Golubek

Dron

Dubovik

et al. 2020

EEJET

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A method has been developed for the combined de-orbiting of large-size objects of space debris from low-Earth orbits using an electro-rocket propulsion system as an active de-orbiting means. A principal de-orbiting technique has been devised, which takes into consideration the patterns of using an electric rocket propulsion system in comparison with the sustainer rocket propulsion system. A procedure for determining the parameters of the de-orbiting scheme has been worked out, such as the minimum total speed and the time of the start of the de-orbiting process, which ensures its achievement. The proposed procedure takes into consideration the impact exerted on the process of the de-orbiting by the ballistic factor of the object, the height of the initial orbit, and the phase of solar activity at the time of the de-orbiting onset. The actual time constraints on battery discharge have been accounted for, as well as on battery charge duration, and active operation of the control system. The process of de-orbiting a large-size object of space debris has been simulated by using the combined method involving an electro-rocket propulsion system. The impact of the initial orbital altitude, ballistic coefficient, and the phase of solar activity on the energy costs of the de-orbiting process have been investigated. The dependences have been determined of the optimal values of a solar activity phase, in terms of energy costs, at the moment of the de-orbiting onset, and the total velocity, required to ensure the de-orbiting, on the altitude of the initial orbit and ballistic factor. These dependences are of practical interest in the tasks of designing the means of the combined de-orbiting involving an electric rocket propulsion system. The dependences of particular derivatives from the increment of a velocity pulse to the gain in the ballistic factor on the altitude of the initial orbit have been established. The use of these derivatives is also of practical interest to assess the effect of unfolding an aerodynamic sailing unit

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“…Examples include a series of problems related to modern technology. The aerodynamic heating and destruction of bodies when moving in the atmosphere are considered in [1]; high-temperature processes in rocket enginesin work [2]. Accounting for temperature stresses in the structural elements at high-temperature heat loads is necessary for the development of a new class of small solid-fuel rocket engines [3].…”

Section: Introductionmentioning

confidence: 99%

The stressedstrained state of a rod at crystallization considering the mutual influence of temperature and mechanical fields

Siasiev

Dreus

Horbonos

et al. 2020

EEJET

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Autophage Engines: Toward a Throttleable Solid Motor

Cited by 8 publications

References 1 publication

Analysis of ballistic aspects in the combined method for removing space objects from the nearEarth orbits

Analysis of ballistic aspects in the combined method for removing space objects from the nearEarth orbits

Development of the combined method to de-orbit space objects using an electric rocket propulsion system

The stressedstrained state of a rod at crystallization considering the mutual influence of temperature and mechanical fields

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Autophage Engines: Toward a Throttleable Solid Motor

Cited by 8 publications

References 1 publication

Analysis of ballistic aspects in the combined method for removing space objects from the near­Earth orbits

Analysis of ballistic aspects in the combined method for removing space objects from the near­Earth orbits

Development of the combined method to de-orbit space objects using an electric rocket propulsion system

The stressed­strained state of a rod at crystallization considering the mutual influence of temperature and mechanical fields

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Product

Resources

About

Analysis of ballistic aspects in the combined method for removing space objects from the nearEarth orbits

Analysis of ballistic aspects in the combined method for removing space objects from the nearEarth orbits

The stressedstrained state of a rod at crystallization considering the mutual influence of temperature and mechanical fields