Author: Matthew James Abrahamson
Publisher:
ISBN:
Category :
Languages : en
Pages : 243
Book Description
New trajectory planning concepts are explored for rapidly planning a long range, boost-through- reentry mission, using a lightweight, highly maneuverable reentry vehicle. An Aimpoint Map, a set of all possible piercepoints through which a boost-through-reentry trajectory can be flown to a fixed target, contains valuable information about the joint capabilities of the booster and the reentry vehicle. At each piercepoint in the Aimpoint Map, a set of velocities and flight path angles exist that can be reached from launch as well as a set of velocities and flight path angles that allow the target to be reached from the piercepoint. The intersection of these velocity and flight path angle sets provides important information for the trajectory planner about the margins available at each piercepoint in the Aimpoint Map. Boost-through-reentry trajectory optimization is used with a six degrees-of-freedom (6DOF) vehicle model to provide a quantitative assessment of the limiting capabilities of the vehicle flight subject to complex terminal and path constraints. Particular constraints of interest include energy management, max g's, heating rate, final velocity and flight path angle, angle of attack, over-flight considerations, approach azimuth, and booster stage disposal.
Boost Through Reentry Trajectory Planning for Maneuvering Reentry Vehicles
Author: Matthew James Abrahamson
Publisher:
ISBN:
Category :
Languages : en
Pages : 243
Book Description
New trajectory planning concepts are explored for rapidly planning a long range, boost-through- reentry mission, using a lightweight, highly maneuverable reentry vehicle. An Aimpoint Map, a set of all possible piercepoints through which a boost-through-reentry trajectory can be flown to a fixed target, contains valuable information about the joint capabilities of the booster and the reentry vehicle. At each piercepoint in the Aimpoint Map, a set of velocities and flight path angles exist that can be reached from launch as well as a set of velocities and flight path angles that allow the target to be reached from the piercepoint. The intersection of these velocity and flight path angle sets provides important information for the trajectory planner about the margins available at each piercepoint in the Aimpoint Map. Boost-through-reentry trajectory optimization is used with a six degrees-of-freedom (6DOF) vehicle model to provide a quantitative assessment of the limiting capabilities of the vehicle flight subject to complex terminal and path constraints. Particular constraints of interest include energy management, max g's, heating rate, final velocity and flight path angle, angle of attack, over-flight considerations, approach azimuth, and booster stage disposal.
Publisher:
ISBN:
Category :
Languages : en
Pages : 243
Book Description
New trajectory planning concepts are explored for rapidly planning a long range, boost-through- reentry mission, using a lightweight, highly maneuverable reentry vehicle. An Aimpoint Map, a set of all possible piercepoints through which a boost-through-reentry trajectory can be flown to a fixed target, contains valuable information about the joint capabilities of the booster and the reentry vehicle. At each piercepoint in the Aimpoint Map, a set of velocities and flight path angles exist that can be reached from launch as well as a set of velocities and flight path angles that allow the target to be reached from the piercepoint. The intersection of these velocity and flight path angle sets provides important information for the trajectory planner about the margins available at each piercepoint in the Aimpoint Map. Boost-through-reentry trajectory optimization is used with a six degrees-of-freedom (6DOF) vehicle model to provide a quantitative assessment of the limiting capabilities of the vehicle flight subject to complex terminal and path constraints. Particular constraints of interest include energy management, max g's, heating rate, final velocity and flight path angle, angle of attack, over-flight considerations, approach azimuth, and booster stage disposal.
Trajectory Planning for a Fixed-trim Reentry Vehicle
Author: Jeffrey J. Bladt
Publisher:
ISBN:
Category :
Languages : en
Pages : 348
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 348
Book Description
Optimal Trajectories for Maneuvering Reentry Vehicles
Author: Aditya Undurti
Publisher:
ISBN:
Category :
Languages : en
Pages : 189
Book Description
Many demanding aerospace missions today require maneuverable re-entry vehicles that can fly trajectories that have stringent path and terminal constraints, including those that cannot be written as drag or energy constraints. This work presents a method based on trajectory optimization techniques to assess the capabilities of the re-entry vehicle by computing the landing and re-entry footprints while meeting these conditions. The models used also account for important non-linear effects seen during hypersonic flight. Several different vehicles are studied, and the effects of parameters such the maximum G-loading, stagnation point heat rate, and the maximum L/D are analyzed.
Publisher:
ISBN:
Category :
Languages : en
Pages : 189
Book Description
Many demanding aerospace missions today require maneuverable re-entry vehicles that can fly trajectories that have stringent path and terminal constraints, including those that cannot be written as drag or energy constraints. This work presents a method based on trajectory optimization techniques to assess the capabilities of the re-entry vehicle by computing the landing and re-entry footprints while meeting these conditions. The models used also account for important non-linear effects seen during hypersonic flight. Several different vehicles are studied, and the effects of parameters such the maximum G-loading, stagnation point heat rate, and the maximum L/D are analyzed.
Trajectory Optimization of a Maneuvering Ballistic Re-entry Vehicle
Author: Allen Dean Dayton
Publisher:
ISBN:
Category : Ballistic missiles
Languages : en
Pages : 296
Book Description
Publisher:
ISBN:
Category : Ballistic missiles
Languages : en
Pages : 296
Book Description
Maneuverable Reentry Vehicle Trajectory Footprints: Calculation and Propertiess
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Maneuverable Reentry Vehicle Trajectory Footprints
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
Trajectory Control for a Low-lift Maneuverable Reentry Vehicle Using State Feedback
Author: Axel Roenneke
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 324
Book Description
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 324
Book Description
Re-entry Vehicle Dynamics
Author: Frank J. Regan
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 442
Book Description
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 442
Book Description
Design of Trajectory Optimization Approach for Space Maneuver Vehicle Skip Entry Problems
Author: Runqi Chai
Publisher: Springer
ISBN: 9811398453
Category : Technology & Engineering
Languages : en
Pages : 207
Book Description
This book explores the design of optimal trajectories for space maneuver vehicles (SMVs) using optimal control-based techniques. It begins with a comprehensive introduction to and overview of three main approaches to trajectory optimization, and subsequently focuses on the design of a novel hybrid optimization strategy that combines an initial guess generator with an improved gradient-based inner optimizer. Further, it highlights the development of multi-objective spacecraft trajectory optimization problems, with a particular focus on multi-objective transcription methods and multi-objective evolutionary algorithms. In its final sections, the book studies spacecraft flight scenarios with noise-perturbed dynamics and probabilistic constraints, and designs and validates new chance-constrained optimal control frameworks. The comprehensive and systematic treatment of practical issues in spacecraft trajectory optimization is one of the book’s major features, making it particularly suited for readers who are seeking practical solutions in spacecraft trajectory optimization. It offers a valuable asset for researchers, engineers, and graduate students in GNC systems, engineering optimization, applied optimal control theory, etc.
Publisher: Springer
ISBN: 9811398453
Category : Technology & Engineering
Languages : en
Pages : 207
Book Description
This book explores the design of optimal trajectories for space maneuver vehicles (SMVs) using optimal control-based techniques. It begins with a comprehensive introduction to and overview of three main approaches to trajectory optimization, and subsequently focuses on the design of a novel hybrid optimization strategy that combines an initial guess generator with an improved gradient-based inner optimizer. Further, it highlights the development of multi-objective spacecraft trajectory optimization problems, with a particular focus on multi-objective transcription methods and multi-objective evolutionary algorithms. In its final sections, the book studies spacecraft flight scenarios with noise-perturbed dynamics and probabilistic constraints, and designs and validates new chance-constrained optimal control frameworks. The comprehensive and systematic treatment of practical issues in spacecraft trajectory optimization is one of the book’s major features, making it particularly suited for readers who are seeking practical solutions in spacecraft trajectory optimization. It offers a valuable asset for researchers, engineers, and graduate students in GNC systems, engineering optimization, applied optimal control theory, etc.
Investigation of the Performance Characteristics of Re-entry Vehicles
Author: Charles A. Bilbey
Publisher:
ISBN:
Category : Space vehicles
Languages : en
Pages : 146
Book Description
Publisher:
ISBN:
Category : Space vehicles
Languages : en
Pages : 146
Book Description