Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 18 of 18 for “"Reusable Launch Vehicle"”.
-
Dynamic Inversion and Backstepping Controller Robustness Analysis for a Reusable Launch Vehicle
… responsive space (ORS), which is the ability to launch military assets into space without the long set up time currently required. Part of the solution to ORS is to develop a reusable booster vehicle capable of sending any vehicle into orbit, then descending back to the atmosphere and landing …
-
Model predictive control for ascent load management of a reusable launch vehicle
… of ascent, winds have a significant impact on a launch vehicle's angle of attack, and can induce large structural loads on the vehicle. Traditional methods for mitigating these loads involve measuring the winds prior to launch and designing trajectories to minimize the vehicle angle of attack …
-
Benchmark characterization for reusable launch vehicle onboard trajectory generation using a Legendre psuedospectral [sic] optimization method
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2002.
-
Model predictive control for terminal area energy management and approach and landing for a reusable launch vehicle
The space industry plans to develop new reusable launch vehicles. The new vehicles will need advanced, new guidance and control systems. Since 1996 Draper Laboratory has been developing the next generation guidance and control for reusable launch vehicles in which guidance and control is integrated …
-
Design of a robust integrated guidance and control algorithm for the landing of an autonomous reusable launch vehicle
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1998.
-
Vehicle concept exploration and avionics architecture design for a fast package delivery system
… as a possible commercial application of advanced reusable launch vehicle technologies. The market was divided into two distinct segments: an on-demand charter service for urgent deliveries, and a scheduled service similar to today's overnight delivery services. System reliability is a strong …
-
Fatigue Microcracking of Composite Material IM7/977-2
… linerless composite fuel tank to a man-rated, reusable launch vehicle requires greater understanding of the micro-fracture behavior which can lead to propellant permeation through the tank wall. Transverse matrix cracks in unidirectional wound, or placed, plies can provide a path for permeation …
-
New methodologies for onboard generation of Terminal Area Energy Management trajectories for autonomous reusable launch vehicles
… capability greatly increases an autonomous reusable launch vehicle's capacity for recovering from unexpected disturbances or anomalous conditions. Such capability dispenses with the routine of pre-defined, mission specific trajectories and contingencies, which has been in use since the early …
-
Integrated entry guidance and control for autonomous reusable launch vehicles
… and control approach employed on current reusable launch vehicles is based on classical control techniques developed for the Space Shuttle more than 20 years ago. This approach partitions the guidance and control tasks into separate loops resulting in a complex control architecture that …
-
Onboard trajectory generation for the unpowered landing of autonomous Reusable Launch Vehicles
… with the pre-defined trajectories used. in Reusable Launch Vehicle (RLV) guidance since the early days of the Shuttle era. This shift, enabled by a new breed of algorithms harnessing modern computer power, offers improvements in performance, robustness, operational cost, and safety. This …
-
Finite time suboptimal control design of nonlinear systems with θ-D technique and implementation to aerospace applications
… other three aerospace applications, including Reusable Launch Vehicle (RLV) landing problem, multiple satellites docking problem, and satellite maneuvering considering J<sub>2</sub> perturbation problem. In this research, contrary to the finite-time state dependent Riccati equation (FSDRE) …
-
A predictor-corrector guidance algorithm design for a low L/D autonomous re-entry vehicle
The Precision Landing Reusable Launch Vehicle (PL-RLV) is a low L/D, 2-stage craft with a mission plan that calls for low cost, speedy retrieval, and quick turn-around-times for successive flights. A guidance scheme that best adheres to these goals and captures the vehicle's capability is desired. …
-
Exploring fast package delivery from a systems perspective
… opportunity for synergistic development with reusable launch vehicle and supersonic transportation technologies. However, a systems analysis of Fast Package Delivery has determined this market to be a difficult arena to enter. FPD has two modes of service. On one end is a mode for which the …
-
An extended analytic range corrector method for the space shuttle entry guidance algorithm
… for off-nominal entry conditions and ensure the vehicle flies the correct range to the runway, the nominal reference drag profile is modified on-line utilizing analytic expressions for the derivative of range with respect to the relevant drag profile parameter. This new profile is then used to …
-
Supply, demand, and entrepreneurial ventures in the space launch industry
… affordable space transportation, using reusable launch vehicles (RL Vs) to place payloads into orbit at a fraction of today's exorbitant costs, will become a reality within the next few decades. As the railroads unlocked the American West, and as the modern airplane shrank our planet, …
-
Optimal Engine Selection and Trajectory Optimization using Genetic Algorithms for Conceptual Design Optimization of Resuable Launch Vehicles
Proper engine selection for Reusable Launch Vehicles (RLVs) is a key factor in the design of low cost reusable launch systems for routine access to space. RLVs typically use combinations of different types of engines used in sequence over the duration of the flight. Also, in order to properly …
-
Cost-effective and sustainable scenarios for future reusable space transportation and re-entry systems
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Tight Discrete Formulations to Enhance Solvability with Applications to Production, Telecommunications, and Air Transportation Problems
… commercial space traffic, due to the advent of Reusable Launch Vehicle (RLV) technology. Currently, each shuttle launch cordons off a large region of Special Use Airspace (SUA) in which no commercial aircraft are permitted to enter for the specified duration. Of concern to airspace planners is …