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Author: Leping Yang
Publisher: Springer
ISBN: 1493908383
Category : Mathematics
Languages : en
Pages : 130
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Book Description
On-orbit operations optimization among multiple cooperative or noncooperative spacecraft, which is often challenged by tight constraints and shifting parameters, has grown to be a hot issue in recent years. The authors of this book summarize related optimization problems into four planning categories: spacecraft multi-mission planning, far-range orbital maneuver planning, proximity relative motion planning and multi-spacecraft coordinated planning. The authors then formulate models, introduce optimization methods, and investigate simulation cases that address problems in these four categories. This text will serve as a quick reference for engineers, graduate students, postgraduates in the fields of optimization research and on-orbit operation mission planning.
Author: Leping Yang
Publisher: Springer
ISBN: 1493908383
Category : Mathematics
Languages : en
Pages : 130
Get Book Here
Book Description
On-orbit operations optimization among multiple cooperative or noncooperative spacecraft, which is often challenged by tight constraints and shifting parameters, has grown to be a hot issue in recent years. The authors of this book summarize related optimization problems into four planning categories: spacecraft multi-mission planning, far-range orbital maneuver planning, proximity relative motion planning and multi-spacecraft coordinated planning. The authors then formulate models, introduce optimization methods, and investigate simulation cases that address problems in these four categories. This text will serve as a quick reference for engineers, graduate students, postgraduates in the fields of optimization research and on-orbit operation mission planning.
Author: Zachary Kahl Funke
Publisher:
ISBN:
Category :
Languages : en
Pages : 214
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Book Description
Satellites at geosynchronous orbital altitudes are highly valuable for national defense, but are also difficult to access and monitor. Uncrewed inspection spacecraft could supervise various essential defense platforms and deter covert rendezvous by adversaries with malicious intent. 'Neighborhood watch' satellites tasked with this situational awareness mission should be designed and operated in such a way as to maximize their lifespan and efficacy. Motivated by this requirement, this thesis explores the prolonged medium- to close-range spacecraft proximity operations problem from the perspective of continuous optimal trajectory control. A numerical optimization framework is presented for developing and analyzing fuel-, energy-, and time-optimal trajectories with multiple phases using Gauss pseudospectral collocation software. Emphasis is placed on energy efficiency during inspection, for which accurate dynamical models play a critical role in formationkeeping fuel consumption. Various scenarios are analyzed for minimum-energy solutions, such as tactical phasing and insertion into periodic trajectories, avoidance of 'no-fly' zones, inclusion of coupling attitude dynamics, and operations with highly-eccentric targets. This thesis focuses primarily on proximity operations carried out in geosynchronous orbital regimes and neglects orbit perturbations, instead determining the pure cost of linearizing Keplerian gravity using the Hill-Clohessy-Wiltshire model. Error in relative position, angular rate of circumnavigation, and fuel use to enforce linearized periodic trajectories are characterized. It was determined that proximity operations utilizing low-thrust high-specific-impulse solar electric propulsion are well-suited to minimum-energy trajectory optimization with this method. While the contributed analysis tool is not suitable for on-board optimal trajectory generation, it provides a framework to perform useful pre-mission analyses.
Author: Marc David DiPrinzio
Publisher:
ISBN: 9781624105821
Category : Orbital rendezvous (Space flight)
Languages : en
Pages : 1238
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Book Description
Author: Tito A. Ciriani
Publisher: Springer Science & Business Media
ISBN: 1475737521
Category : Computers
Languages : en
Pages : 453
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Book Description
Operations Research in Space and Air is a selection of papers reflecting the experience and expertise of international OR consulting companies and academic groups. The global market and competition play a crucial part in the decision making processes within the Space and Air industries and this book gives practical examples of how advanced applications can be used by Space and Air industry management. The material within the book provides both the basic background for the novice modeler and a useful reference for experienced modelers. Students, researchers and OR practitioners will appreciate the details of the modeling techniques, the processes that have been implemented and the computational results that demonstrate the benefits in applying OR in the Space and Airline industries. Advances in PC and Workstations technology, in optimiza tion engines and in modeling techniques now enable solving problems, never before attained by Operations Research. In recent years the Ital ian OR Society (AfRO, www. airo. org) has organized annual forums for researchers and practitioners to meet together to present and dis cuss the various scientific and technical OR achievements. The OR in Space 8 Air session of AfR02001 and AfR02002 Conferences, together with optimization tools' applications, presented recent results achieved by Alenia Spazio S. p. A. (Turin), Alitalia, Milan Polytechnic and Turin Polytechinc. With additional contributions from academia and indus try they have enabled us to capture, in print, today's 'state-of-the-art' optimization and data mining solutions.
Author: Giorgio Fasano
Publisher: Springer Science & Business Media
ISBN: 1461444683
Category : Mathematics
Languages : en
Pages : 409
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Book Description
This volume presents a selection of advanced case studies that address a substantial range of issues and challenges arising in space engineering. The contributing authors are well-recognized researchers and practitioners in space engineering and in applied optimization. The key mathematical modeling and numerical solution aspects of each application case study are presented in sufficient detail. Classic and more recent space engineering problems – including cargo accommodation and object placement, flight control of satellites, integrated design and trajectory optimization, interplanetary transfers with deep space manoeuvres, low energy transfers, magnetic cleanliness modeling, propulsion system design, sensor system placement, systems engineering, space traffic logistics, and trajectory optimization – are discussed. Novel points of view related to computational global optimization and optimal control, and to multidisciplinary design optimization are also given proper emphasis. A particular attention is paid also to scenarios expected in the context of future interplanetary explorations. Modeling and Optimization in Space Engineering will benefit researchers and practitioners working on space engineering applications. Academics, graduate and post-graduate students in the fields of aerospace and other engineering, applied mathematics, operations research and optimal control will also find the book useful, since it discusses a range of advanced model development and solution techniques and tools in the context of real-world applications and new challenges.
Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781731304773
Category :
Languages : en
Pages : 126
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Book Description
The purpose of this research is to provide Space Station Freedom protective structures design insight through the coupling of design/material requirements, hypervelocity impact phenomenology, meteoroid and space debris environment sensitivities, optimization techniques and operations research strategies, and mission scenarios. The goals of the research are: (1) to develop a Monte Carlo simulation tool which will provide top level insight for Space Station protective structures designers; (2) to develop advanced shielding concepts relevant to Space Station Freedom using unique multiple bumper approaches; and (3) to investigate projectile shape effects on protective structures design. Mog, Robert A. and Helba, Michael J. and Hill, Janeil B. Unspecified Center HYPERVELOCITY IMPACT; MONTE CARLO METHOD; OPTIMIZATION; SPACE STATION FREEDOM; SPACECRAFT SHIELDING; SPACECRAFT SURVIVABILITY; BUMPERS; METEOROID CONCENTRATION; OPERATIONS RESEARCH; PROJECTILES; SPACE DEBRIS; SPACE STATION STRUCTURES...
Author: Emmanuel Blazquez
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
In the context of Human Spaceflight exploration mission scenario, with the Deep Space Gateway (DSG) on a Near Rectilinear Halo Orbit (NRHO) about Earth-Moon Lagrangian Point (EML), Rendezvous and Docking (RVD) operational activities are mandatory and critical for assembly of the DSG to be performed by the Orion spacecraft. Orion will also handle cargo delivery and crew exchange missions and they all require RVD. There is extensive experience with RVD in the two-body problem in Low Earth Orbit to various space stations or around Low Lunar Orbit quasi circular, the latter by Apollo in manual RVD. Despite that no operational RVD has yet been performed in the vicinity of the Lagrangian points, where Keplerian dynamics is not applicable. There are some drawbacks from the complexity, but also some strong advantages that need to be researched in depth by the work proposed here. Despite vast literature on families of trajectories about the Lagrangian points and transfers in the Cis-Lunar realm, the scientific community has, at the moment, very few relevant research results in the non Keplerian dynamic domain. However, in recent years one can be seen the emergence of some sparse publications on the subject, which can be explained by the studies related to DSG and Orion missions. Within the partners, semi-analytical tools have been developed to compute and model families of orbits like NRHO, DRO, Lyapunov, Halo and Lissajous about the Lagrangian points in the Circular Restricted Three Body Problem (CR3BP). Hence there is a good starting point for the research for the overall rendezvous strategy considering vehicle and operations constraints. The proposed PhD project is expected to further and strengthen the work already carried out and some of the celestial mechanics tools developed. Further to that research shall be performed regarding the GNC design for such missions and the accuracies that can be achieved with today technologies and what is required. Assuming the DSG to be the target, RVD will be performed in this project by visiting vehicles arriving from the Earth.
Author: Giorgio Fasano
Publisher: Springer
ISBN: 3319415085
Category : Mathematics
Languages : en
Pages : 492
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Book Description
This book presents a selection of advanced case studies that cover a substantial range of issues and real-world challenges and applications in space engineering. Vital mathematical modeling, optimization methodologies and numerical solution aspects of each application case study are presented in detail, with discussions of a range of advanced model development and solution techniques and tools. Space engineering challenges are discussed in the following contexts: •Advanced Space Vehicle Design •Computation of Optimal Low Thrust Transfers •Indirect Optimization of Spacecraft Trajectories •Resource-Constrained Scheduling, •Packing Problems in Space •Design of Complex Interplanetary Trajectories •Satellite Constellation Image Acquisition •Re-entry Test Vehicle Configuration Selection •Collision Risk Assessment on Perturbed Orbits •Optimal Robust Design of Hybrid Rocket Engines •Nonlinear Regression Analysis in Space Engineering •Regression-Based Sensitivity Analysis and Robust Design •Low-Thrust Multi-Revolution Orbit Transfers •Modeling and Optimization of Balance Layout Problems •Pilot-Induced Oscillations Alleviation •Modeling and Optimization of Hybrid Transfers to Near-Earth Objects •Probabilistic Safety Analysis of the Collision Between Space Debris and Satellite •Flatness-based Low-thrust Trajectory Optimization for Spacecraft Proximity Operations The contributing authors are expert researchers and practitioners in either the space engineering and/or in the applied optimization fields. Researchers and practitioners working in various applied aspects of space engineering will find this book practical and informative. Academics, graduate and post-graduate students in aerospace engineering, applied mathematics, operations research, optimization, and optimal control, will find this book useful.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
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Book Description
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781730783005
Category : Science
Languages : en
Pages : 72
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Book Description
This guide instructs users in the operation of a Proximity Operations Planning System. This system uses an interactive graphical method for planning fuel-efficient rendezvous trajectories in the multi-spacecraft environment of the space station and allows the operator to compose a multi-burn transfer trajectory between orbit initial chaser and target trajectories. The available task time (window) of the mission is predetermined and the maneuver is subject to various operational constraints, such as departure, arrival, spatial, plume impingement, and en route passage constraints. The maneuvers are described in terms of the relative motion experienced in a space station centered coordinate system. Both in-orbital plane as well as out-of-orbital plane maneuvering is considered. A number of visual optimization aids are used for assisting the operator in reaching fuel-efficient solutions. These optimization aids are based on the Primer Vector theory. The visual feedback of trajectory shapes, operational constraints, and optimization functions, provided by user-transparent and continuously active background computations, allows the operator to make fast, iterative design changes that rapidly converge to fuel-efficient solutions. The planning tool is an example of operator-assisted optimization of nonlinear cost functions. Grunwald, Arthur J. and Ellis, Stephen R. Ames Research Center...
