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Atmospheric And Near Planet Trajectory Optimization By The Variational Steepest Descent Method
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Book Synopsis Atmospheric and Near Planet Trajectory Optimization by the Variational Steepest- Descent Method by :
Download or read book Atmospheric and Near Planet Trajectory Optimization by the Variational Steepest- Descent Method written by and published by . This book was released on 1970 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of the Variational Steepest- Descent Method to High Performance Aircraft Trajectory Optimization by :
Download or read book Application of the Variational Steepest- Descent Method to High Performance Aircraft Trajectory Optimization written by and published by . This book was released on 1970 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of Steepest-ascent and Second Variational Techniques in Solving a Restricted Class of Trajectory Optimization Problems by : Ernest Celestino Luders
Download or read book A Comparison of Steepest-ascent and Second Variational Techniques in Solving a Restricted Class of Trajectory Optimization Problems written by Ernest Celestino Luders and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Trajectory Optimization and Guidance Methods for Mars Entry by : Shuang Li
Download or read book Trajectory Optimization and Guidance Methods for Mars Entry written by Shuang Li and published by Springer Nature. This book was released on with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Collection of Technical Papers by :
Download or read book A Collection of Technical Papers written by and published by . This book was released on 1978 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Variational Method for the Optimization of Interplanetary Round-trip Trajectories by : John S. MacKay
Download or read book A Variational Method for the Optimization of Interplanetary Round-trip Trajectories written by John S. MacKay and published by . This book was released on 1963 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ODIN System Technology Module Library, 1972 - 1973 by :
Download or read book ODIN System Technology Module Library, 1972 - 1973 written by and published by . This book was released on 1978 with total page 862 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Three Dimensional Boost Trajectory Optimization by the Method of Steepest Descent by : Bernard Horaist
Download or read book Three Dimensional Boost Trajectory Optimization by the Method of Steepest Descent written by Bernard Horaist and published by . This book was released on 1967 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Application of Multivariable Search Techniques to Structural Design Optimization by : Robert Thomas Jones
Download or read book Application of Multivariable Search Techniques to Structural Design Optimization written by Robert Thomas Jones and published by . This book was released on 1972 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis TRAJECTORY OPTIMIZATION BY METHOD OF STEEPEST DESCENT. VOLUME 1. FORMULATION. by :
Download or read book TRAJECTORY OPTIMIZATION BY METHOD OF STEEPEST DESCENT. VOLUME 1. FORMULATION. written by and published by . This book was released on 1967 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trajectory optimization by the method of steepest descent has been discussed in detail. The method has been generalized so that it has the ability to do the following: (1) Search for optimum initial values of the state variable; (2) Search for optimum time to stage; (3) Satisfy constraints which are functions of the state variable at the end of any stage; (4) Optimize functions of state variables at the end of any stage; (5) Search for optimum values of certain design parameters. A Generalized Steepest Descent computer program has been programmed for the CDC6000 Series Computer in the Fortran IV language. In its basic form the program is up to handle the three dimensional, point mass, vehicle flight path trajectory optimization problem. The program is capable of simultaneously handling up to fifteen state variables, six control variables and ten constraints. Most of the usual functions required in flight path studies are available within the program; others may be added as desired by simple program additions, providing the function or its derivative is defined analytically. The program may be readily extended to cover steepest descent optimization problems in other fields, by the replacement of the basic differential equation subroutine by any other set of equations of the same general type. Convergence to the optimal solution is obtained automatically by means of a control system which, by a series of logical decisions, obtains a reasonable perturbation magnitude at each iteration.
Book Synopsis A Method of Trajectory Optimization by Fast-time Repetitive Computations by : Rodney C. Wingrove
Download or read book A Method of Trajectory Optimization by Fast-time Repetitive Computations written by Rodney C. Wingrove and published by . This book was released on 1966 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optimization of a Corrugated Stiffened Composite Panel Under Uniaxial Compression by : Banarsi Lal Agarwal
Download or read book Optimization of a Corrugated Stiffened Composite Panel Under Uniaxial Compression written by Banarsi Lal Agarwal and published by . This book was released on 1973 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-Earth Orbit Trajectory Optimization in the Presence of Atmospheric Uncertainty by : Aaron Jay Brown
Download or read book Low-Earth Orbit Trajectory Optimization in the Presence of Atmospheric Uncertainty written by Aaron Jay Brown and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The previous 20 to 25 years have seen a tremendous increase in space exploration, and with that an increase in the level of logistics planning needed to ensure mission success. For spacecraft that are designed to be periodically re-supplied, a key logistics consumable is propellant, as it constitutes the greatest up-mass on re-supply vehicles. A trajectory design strategy is therefore desired that minimizes propellant usage in order to ease the demand for propellant re-supply missions. This thesis develops such a strategy in three stages, and uses the International Space Station (ISS) as its testbed, as no other LEO spacecraft is more challenging from a space logistics standpoint. First, the ISS trajectory planning problem is formulated as a constrained burn optimization problem assuming a deterministic atmosphere. The cost function is total ∆v, with constraints imposed on longitude of ascending node (LAN) and semi-major axis (SMA) altitude. Analytic derivatives are constructed for both the cost and constraints, which are necessary given the 6-week to 2-year time frames being considered. A gradient-based optimizer is then utilized to find locally-optimal solutions to real-world ISS trajectory planning problems. Second, atmospheric uncertainty is addressed by constructing a probabilistic model of space weather data using Gaussian Processes (GPs). Bayesian inference is performed using the GP model to generate mean and covariance estimates for space weather predictions, whose pedigree is assessed against test data. The predictions are then mapped into atmospheric density via the analytic Jacchia-Roberts density model, and the effect of space weather uncertainty on orbital lifetime is examined. Third, an ISS burn execution uncertainty model is developed. This model, along with the space weather uncertainty model, are deployed in a linear covariance analysis to ascertain their combined effect on LAN and SMA altitude dispersions. The deterministic constraints from the original problem are re-formulated as stochastic constraints, where now the constraint uncertainty interval is required to fall within specified bounds. An updated optimization framework is constructed using the original ∆v cost function along with the stochastic constraints to solve the trajectory optimization problem under atmospheric uncertainty. Finally, the complete architecture is summarized for deployment in an operational setting
Book Synopsis Branched Trajectory Optimization by the Method of Steepest Descent by : William J. Thurneck (Jr.)
Download or read book Branched Trajectory Optimization by the Method of Steepest Descent written by William J. Thurneck (Jr.) and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Branched Trajectory Optimization by the Projected Gradient Technique by : Joseph Gera
Download or read book Branched Trajectory Optimization by the Projected Gradient Technique written by Joseph Gera and published by . This book was released on 1969 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Branched trajectory optimization for split rocket vehicles using projected gradient or steepest descent method.
Book Synopsis Application of Multivariable Search Techniques to the Design of Low Sonic Boom Overpressure Body Shapes by :
Download or read book Application of Multivariable Search Techniques to the Design of Low Sonic Boom Overpressure Body Shapes written by and published by . This book was released on 1970 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: