Author: M. A. CordnerPublisher:
ISBN:
Category :
Languages : en
Pages : 313
Book Description
Hybrid Propulsion System Transmission Evaluation, Phase 1
Author: M. A. CordnerHybrid Propulsion System Transmission Evaluation
Author: M. A. CordnerPublisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 313
Book Description
Hybrid Propulsion Technology Program, Phase 1. Volume 1: Executive Summary
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781729024096
Category : Science
Languages : en
Pages : 26
Book Description
The study program was contracted to evaluate concepts of hybrid propulsion, select the most optimum, and prepare a conceptual design package. Further, this study required preparation of a technology definition package to identify hybrid propulsion enabling technologies and planning to acquire that technology in Phase 2 and demonstrate that technology in Phase 3. Researchers evaluated two design philosophies for Hybrid Rocket Booster (HRB) selection. The first is an ASRM modified hybrid wherein as many components/designs as possible were used from the present Advanced Solid Rocket Motor (ASRM) design. The second was an entirely new hybrid optimized booster using ASRM criteria as a point of departure, i.e., diameter, thrust time curve, launch facilities, and external tank attach points. Researchers selected the new design based on the logic of optimizing a hybrid booster to provide NASA with a next generation vehicle in lieu of an interim advancement over the ASRM. The enabling technologies for hybrid propulsion are applicable to either and vehicle design may be selected at a downstream point (Phase 3) at NASA's discretion. The completion of these studies resulted in ranking the various concepts of boosters from the RSRM to a turbopump fed (TF) hybrid. The scoring resulting from the Figure of Merit (FOM) scoring system clearly shows a natural growth path where the turbopump fed solid liquid staged combustion hybrid provides maximized payload and the highest safety, reliability, and low life cycle costing. Unspecified Center NAS8-37775...
Scientific and Technical Aerospace Reports
Author: Energy Research Abstracts
Author: Hybrid Propulsion Technology Program
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722441067
Category :
Languages : en
Pages : 100
Book Description
Three candidate hybrid propulsion (HP) concepts were identified, optimized, evaluated, and refined through an iterative process that continually forced improvement to the systems with respect to safety, reliability, cost, and performance criteria. A full scale booster meeting Advanced Solid Rocket Motor (ASRM) thrust-time constraints and a booster application for 1/4 ASRM thrust were evaluated. Trade studies and analyses were performed for each of the motor elements related to SRM technology. Based on trade study results, the optimum HP concept for both full and quarter sized systems was defined. The three candidate hybrid concepts evaluated are illustrated. Schuler, A. L. and Wiley, D. R. Unspecified Center...
Air Pollution Technical Publications of the U.S. Environmental Protection Agency
Author: United States. Environmental Protection AgencyPublisher:
ISBN:
Category : Air
Languages : en
Pages : 350
Book Description
Hybrid Propulsion Technology Program: Phase 1
Author: National Aeronautics and Space Adm NasaPublisher: Independently Published
ISBN: 9781792760242
Category : Science
Languages : en
Pages : 40
Book Description
A number of booster propulsion system concepts are being considered for the next generation of manned and unmanned space launch vehicles. The one propulsion system concept that has potential for reducing costs with increased safety, reliability, and performance is hybrid propulsion (HP). A HP system may be thought of as a liquid propulsion system with solid fuel or a solid propulsion system with a liquid oxidizer. The liquid propulsion features that are most attractive are the higher specific impulse, clean exhaust, separated propellants, and oxidizer loading just prior to launch. The most attractive solid propulsion features includes low life cycle costs, no rotating machinery, compact size, and a robust case. In addition, a HP system has a robust LO2 tank; provides thrust control for ignition, to alleviate flight loads, and for thrust termination; and uses an inert grain that is not sensitive to anomalies such as cracks, voids, and separations. The object is to develop the technology to enable the application of HP to manned and unmanned space launch vehicles. This program will identify the necessary technology, acquire that technology, and demonstrate that technology. This volume is the executive summary. Schuler, A. L. and Wiley, D. R. NASA-CR-183972, NAS 1.26:183972, GDSS-HPT-89-001-VOL-1 NAS8-37777...
Modeling and Control of Hybrid Propulsion System for Ground Vehicles
Author: Yuan ZouPublisher: Springer
ISBN: 3662536730
Category : Technology & Engineering
Languages : en
Pages : 331
Book Description
This book focuses on the systematic design of architectures, parameters and control of typical hybrid propulsion systems for wheeled and tracked vehicles based on a combination of theoretical research and engineering practice. Adopting a mechatronic system dynamics perspective, principles and methods from the fields of optimal control and system optimization are applied in order to analyze the hybrid propulsion configuration and controller design. Case investigations for typical hybrid propulsion systems of wheeled and tracked ground vehicles are also provided.
Review of the 21st Century Truck Partnership
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309122082
Category : Transportation
Languages : en
Pages : 130
Book Description
The 21st Century Truck Partnership (21CTP), a cooperative research and development partnership formed by four federal agencies with 15 industrial partners, was launched in the year 2000 with high hopes that it would dramatically advance the technologies used in trucks and buses, yielding a cleaner, safer, more efficient generation of vehicles. Review of the 21st Century Truck Partnership critically examines and comments on the overall adequacy and balance of the 21CTP. The book reviews how well the program has accomplished its goals, evaluates progress in the program, and makes recommendations to improve the likelihood of the Partnership meeting its goals. Key recommendations of the book include that the 21CTP should be continued, but the future program should be revised and better balanced. A clearer goal setting strategy should be developed, and the goals should be clearly stated in measurable engineering terms and reviewed periodically so as to be based on the available funds.