Design Optimization of Space Launch Vehicles for Minimum Cost Using a Genetic Algorithm

Bayley, Douglas; Hartfield, Roy J.

doi:10.2514/6.2007-5852

Cited by 25 publications

(13 citation statements)

References 17 publications

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“…Another disadvantage of GAs is that a global optimum solution is not always guaranteed. 16 Considering the disadvantages of GAs, the pattern search algorithm, which is also a direct search method, is added to the optimization process. This algorithm has strong local searching capability and is faster than GAs.…”

Section: Analytical Constellation Design Methodsmentioning

confidence: 99%

Constellation design for responsive visiting based on ground track adjustment

Xiang

Liu

Chen

2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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Many responsive civilian or military space missions require that a certain ground site of interest be visited in a fairly short period (e.g., 12 h or less). To this end, a constellation must be utilized, since a single satellite is usually unable to fulfill such a task if the ground site is selected on the whole terrestrial surface responding to random user requirements. In this paper, the design approaches of such a constellation for responsive visiting based on ground track adjustment are investigated. By using the difference in orbit period between the maneuvered satellite and the reference satellite to make the ground track shift, reachable domain belts are generated. In terms of orbit maneuvering, two-and one-impulse maneuvers are analyzed and compared. Based on the reachable domain belts of a single satellite, two constellation design methods are proposed. The first one is an analytical method which is presented to achieve global reach and implemented by uniformly splicing together the widest belts of all satellites within the range of [0 , 180 ]. The second one is an optimized method proposed to further reduce the number of satellites, by splicing together all the reachable domain belts rather than only the widest belts in the equator. A hybrid algorithm that consists of the genetic algorithm and the pattern search algorithm is proposed to minimize the number of satellites. Numerical examples are provided to illustrate the two proposed constellation design methods and validate the global reach performance.

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Section: Analytical Constellation Design Methodsmentioning

confidence: 99%

Constellation design for responsive visiting based on ground track adjustment

Xiang

Liu

Chen

2017

Proceedings of the Institution of Mechanical Engineers, Part G:

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“…Ross, Hastings et al used the Multi-Attribute Tradespace Exploration methodology to study several projects, for instance, the Terrestrial Observer Swarm (X-TOS) [7]. Bayley et al used a genetic algorithm to optimize the architecture of a launch vehicle [8]. De Weck et al also used real options to analyze architectures for constellations of communications satellites [9].…”

Section: System Architecting and Decision Support Toolsmentioning

confidence: 99%

A rule-based decision support tool for architecting Earth observing missions

Selva

Crawley

2012

2012 IEEE Aerospace Conference

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A decision support tool is presented that is especially tailored for architecting Earth observing missions and programs. The tool features both a cost model and a performance model. This paper focuses on the description of the performance model. Indeed, while considerable effort has been put into the development of cost estimating models, comparably much less effort has been put into the development of quantitative methods to assess how well Earth Observing Mission satisfy scientific and societal needs. A literature review revealed that existing methods include a commercial approach, a value-of-information approach, end-to-end simulation, assimilation in Observing System Simulation Experiments, and simple expert judgment. Limitations of these methods include limited applicability, computational complexity, low modeling fidelity (e.g. abstraction of synergies between measurements), and subjectivity. Our method uses a knowledge-based system to store and manage large quantities of expert knowledge in the form of rules-of-thumb that replace expensive computations.Scientific and societal measurement requirements and instrument capabilities are expressed in the form of logical rules and data structures. An efficient pattern matching algorithm performs the comparison of the measurement requirements and the measurement capabilities on the basis of 64 different measurement attributes. The system is demonstrated on the Earth Science Decadal Survey. While the system is still under development, it shows great potential to enhance traceability in the modeling of scientific and societal value of Earth observing missions. Furthermore, the recursive nature of rule-based systems shows potential to model synergies between instruments and measurements, at a sufficient level of fidelity for architectural trade studies, especially for the ones conducted in committees with experts such as Decadal Surveys.

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“…in atmospheric and exo-atmospheric phases of the mission. This accuracy can be characterized by the value of the dispersions posteriori of the corresponding components of the mentioned vectors [8]. Now let's consider the possible integration schemes for GINS and GPS receiver with respect to this technical problem.…”

Section: Problem Settingmentioning

confidence: 99%

Selecting Design Objectives for an Integrated Guidance System of a Commercial Launch Vehicle with Application of GPS Technologies

Zosimovych¹

2013

TOAEJ

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In this article have been proposed the design objectives for an integrated guidance system of a commercial launch vehicle with application of GPS technologies and has been set a technical problem of the conceptual design of an integrated navigation system for the space launch vehicle qualified to inject small artificial Earth satellites into low and medium circular orbits. The conceptual design of the integrated navigation system based on GPS technology involves determination of its structure, models and algorithms, providing the required accuracy and reliability in injecting payloads with due regard to restrictions on weight and dimensions of the system.

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Design Optimization of Space Launch Vehicles for Minimum Cost Using a Genetic Algorithm

Cited by 25 publications

References 17 publications

Constellation design for responsive visiting based on ground track adjustment

Constellation design for responsive visiting based on ground track adjustment

A rule-based decision support tool for architecting Earth observing missions

Selecting Design Objectives for an Integrated Guidance System of a Commercial Launch Vehicle with Application of GPS Technologies

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