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You searched for subject:(spaceflight mechanics). Showing records 1 – 3 of 3 total matches.

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Penn State University

1. Kuppa, Koundinya. Long-term Orbit Propagation Using Symplectic Integration Algorithms.

Degree: 2016, Penn State University

Understanding the evolution of satellite orbits in the long-term is of great importance in astrodynamics. In order to achieve this, accurate propagation of the orbital dynamics of the satellite is required. This paper presents implementation and evaluation of a class of numerical integration methods known as symplectic algorithms. This class of algorithms is highly regarded in scientific applications, especially in long-term studies. The objective of this paper is to demonstrate the superior accuracy and efficient speed of several algorithms of this class and obtain long-term state of satellites under the several influencing forces. Within each application, several cases with different values for parameters such as the time step and duration are executed. In addition, long-term orbital evolution of a satellite in various orbital regimes is conducted. The results indicate that the symplectic algorithms are more accurate for orbit propagation at various time increments tested. In addition, the symplectic algorithms are more computationally efficient in all but a few cases. Advisors/Committee Members: David Bradley Spencer, Thesis Advisor/Co-Advisor.

Subjects/Keywords: astrodynamics; orbital mechanics; symplectic integration; numerical integration; orbit propagation; spaceflight mechanics

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Kuppa, K. (2016). Long-term Orbit Propagation Using Symplectic Integration Algorithms. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/29463

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Kuppa, Koundinya. “Long-term Orbit Propagation Using Symplectic Integration Algorithms.” 2016. Thesis, Penn State University. Accessed October 25, 2020. https://submit-etda.libraries.psu.edu/catalog/29463.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Kuppa, Koundinya. “Long-term Orbit Propagation Using Symplectic Integration Algorithms.” 2016. Web. 25 Oct 2020.

Vancouver:

Kuppa K. Long-term Orbit Propagation Using Symplectic Integration Algorithms. [Internet] [Thesis]. Penn State University; 2016. [cited 2020 Oct 25]. Available from: https://submit-etda.libraries.psu.edu/catalog/29463.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kuppa K. Long-term Orbit Propagation Using Symplectic Integration Algorithms. [Thesis]. Penn State University; 2016. Available from: https://submit-etda.libraries.psu.edu/catalog/29463

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


University of Arizona

2. Kidd, John Nocon. Development and Optimization of Low Energy Orbits for Advancing Exploration of the Solar System .

Degree: 2015, University of Arizona

The architecture of a system which enables the cost-effective exploration of the solar system is proposed. Such a system will make use of the benefits of the natural dynamics represented in the Circular Restricted Three-Body Problem (CRTBP). Additionally, a case study of the first missions which apply the lessons from the CRTBP is examined. The guiding principle of the proposed system is to apply lessons learned from both the Apollo project for deep space exploration and the International Space Station for long term habitation in space as well as modular space vehicle design. From this preliminary system design, a number of missions are outlined. These missions form the basis of an evolvable roadmap to fully develop the infrastructure required for long-term sustained manned exploration of the solar system. This roadmap provides a clear and concise pathway from current exploration capabilities to the current long-term goal of sustained manned exploration of Mars. The primary method employed in designing the staging orbits is the "Single Lunar Swingby", each of the component segment trajectory design processes is explored in detail. Additionally, the method of combining each of these segments together in a larger End-to-End optimizer environment within the General Mission Analysis Tool (GMAT) is introduced, called the Multiple Shooting Method. In particular, a specific Baseline Parking Orbit, or BPO, is chosen and analyzed. This BPO serves as the parking home orbit of any assets not currently in use. A BPO of amplitude (14000, 28000, 6000) kilometers. The BPO has full coverage to both the Earth and the Moon and orbit station-keeping may be conducted at a cost of less than 1 m/s over a 14 year period. This provides a cost-effective platform from which more advanced exploration activities can be based, both robotic and manned. One of the key advanced exploration activities considered is manned exploration of Mars, one of the current long-term goals of NASA. Trajectories from the BPO to Mars and back to Earth are explored and show approximately 50% decrease in required ΔV provided by the spacecraft. Advisors/Committee Members: Furfaro, Roberto (advisor), Head, Larry (committeemember), Gaylor, David (committeemember).

Subjects/Keywords: Interplanetary; Mission Design; Optimization; Orbital Mechanics; Spaceflight Dynamics; Systems & Industrial Engineering; Exploration Architecture

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Kidd, J. N. (2015). Development and Optimization of Low Energy Orbits for Advancing Exploration of the Solar System . (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/560837

Chicago Manual of Style (16th Edition):

Kidd, John Nocon. “Development and Optimization of Low Energy Orbits for Advancing Exploration of the Solar System .” 2015. Masters Thesis, University of Arizona. Accessed October 25, 2020. http://hdl.handle.net/10150/560837.

MLA Handbook (7th Edition):

Kidd, John Nocon. “Development and Optimization of Low Energy Orbits for Advancing Exploration of the Solar System .” 2015. Web. 25 Oct 2020.

Vancouver:

Kidd JN. Development and Optimization of Low Energy Orbits for Advancing Exploration of the Solar System . [Internet] [Masters thesis]. University of Arizona; 2015. [cited 2020 Oct 25]. Available from: http://hdl.handle.net/10150/560837.

Council of Science Editors:

Kidd JN. Development and Optimization of Low Energy Orbits for Advancing Exploration of the Solar System . [Masters Thesis]. University of Arizona; 2015. Available from: http://hdl.handle.net/10150/560837


Brno University of Technology

3. Koziel, David. Návrh vesmírné mise: Space mission design.

Degree: 2020, Brno University of Technology

In this work, there are basic laws and knowledge relating to space flights into an orbit around the Earth. Also, there are instructions for beginners, who want to work with the GMAT program (General Mission Analysis Tool), which is the program used for designing space missions. In the final part of the work, there is also a use of the program demonstrated on a specific mission of a satellite (CubeSat) into the Geostationary Earth Orbit. In this section, there is a described method of work, individual relevant functions of the program and possibilities, and a way of work in it. Finally, graphical and data outputs of the simulation are evaluated. Therefore, the output of the work is complex characteristics of the basics of problems of space mission design and a brief GMAT software guide, which could be used in the future to teach. Advisors/Committee Members: Zikmund, Pavel (advisor), Navrátil, Jan (referee).

Subjects/Keywords: Manuál GMAT R2018a; General Mission Analysis Tool; geostacionární oběžná dráha; návrh vesmírné mise; návod pro GMAT; základy vesmírného letu; orbitální mechanika; výpočtová simulace; geostacionární družice; Manual GMAT R2018a; General Mission Analysis Tool; geostationary orbit; space mission design; GMAT instructions; basics of spaceflight; orbital mechanics; computational simulation; geostationary satellite

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Koziel, D. (2020). Návrh vesmírné mise: Space mission design. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/192566

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Koziel, David. “Návrh vesmírné mise: Space mission design.” 2020. Thesis, Brno University of Technology. Accessed October 25, 2020. http://hdl.handle.net/11012/192566.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Koziel, David. “Návrh vesmírné mise: Space mission design.” 2020. Web. 25 Oct 2020.

Vancouver:

Koziel D. Návrh vesmírné mise: Space mission design. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2020 Oct 25]. Available from: http://hdl.handle.net/11012/192566.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Koziel D. Návrh vesmírné mise: Space mission design. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/192566

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.