Download or read book Development of the Architectural Simulation Model for Future Launch Systems and Its Application to an Existing Launch Fleet written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: A significant portion of lifecycle costs for launch vehicles are generated during the operations phase. Research indicates that operations costs can account for a large percentage of the total life-cycle costs of reusable space transportation systems. These costs are largely determined by decisions made early during conceptual design. Therefore, operational considerations are an important part of vehicle design and concept analysis process that needs to be modeled and studied early in the design phase. However, this is a difficult and challenging task due to uncertainties of operations definitions, the dynamic and combinatorial nature of the processes, and lack of analytical models and the scarcity of historical data during the conceptual design phase. Ultimately, NASA would like to know the best mix of launch vehicle concepts that would meet the missions launch dates at the minimum cost. To answer this question, we first need to develop a model to estimate the total cost, including the operational cost, to accomplish this set of missions. In this project, we have developed and implemented a discrete-event simulation model using ARENA (a simulation modeling environment) to determine this cost assessment. Discrete-event simulation is widely used in modeling complex systems, including transportation systems, due to its flexibility, and ability to capture the dynamics of the system. The simulation model accepts manifest inputs including the set of missions that need to be accomplished over a period of time, the clients (e.g., NASA or DoD) who wish to transport the payload to space, the payload weights, and their destinations (e.g., International Space Station, LEO, or GEO). A user of the simulation model can define an architecture of reusable or expendable launch vehicles to achieve these missions. Launch vehicles may belong to different families where each family may have it own set of resources, processing times, and cost factors. The goal is to capture the required
Download or read book Launch Options for the Future Summary Buyer s Guide written by and published by . This book was released on 1988 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the National Aerospace Initiative written by National Research Council and published by National Academies Press. This book was released on 2004-06-16 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Aerospace Initiative (NAI) was conceived as a joint effort between the Department of Defense (DOD) and the National Aeronautics and Space Administration (NASA) to sustain the aerospace leadership of the United States through the acceleration of selected aerospace technologies: hypersonic flight, access to space, and space technologies. The Air Force became concerned about the NAI's possible consequences on Air Force programs and budget if NAI program decisions differed from Air Force priorities. To examine this issue, it asked the NRC for an independent review of the NAI. This report presents the results of that assessment. It focuses on three questions asked by the Air Force: is NAI technically feasible in the time frame laid out; is it financially feasible over that period; and is it operationally relevant.
Download or read book Space Modeling and Simulation written by Larry B. Rainey and published by AIAA. This book was released on 2004 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was sponsored by the U.S. Air Force Academy Space Mission Analysis and Design Program with support from program offices at the Air Force Space and Missile Systems Center, the National Reconnaissance Office, the U.S. Department of Transportation, and organizations within the National Aeronautics and Space Administration.
Download or read book Reusable Launch Vehicle written by Committee on Reusable Launch Vehicle Technology and Test Program and published by National Academies Press. This book was released on 1996-01-22 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The key to opening the use of space to private enterprise and to broader public uses lies in reducing the cost of the transportation to space. More routine, affordable access to space will entail aircraft-like quick turnaround and reliable operations. Currently, the space Shuttle is the only reusable launch vehicle, and even parts of it are expendable while other parts require frequent and extensive refurbishment. NASA's highest priority new activity, the Reusable Launch Vehicle program, is directed toward developing technologies to enable a new generation of space launchers, perhaps but not necessarily with single stage to orbit capability. This book assesses whether the technology development, test and analysis programs in propulsion and materials-related technologies are properly constituted to provide the information required to support a December 1996 decision to build the X-33, a technology demonstrator vehicle; and suggest, as appropriate, necessary changes in these programs to ensure that they will support vehicle feasibility goals.
Download or read book Launch Options for the Future written by United States. Congress. Office of Technology Assessment and published by U.S. Government Printing Office. This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1992 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evolutionary Approach to Space Launch Commercialization written by Brian G. Chow and published by . This book was released on 1993 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study classifies launch contracts into three types: government (GLs), commercial (CLs) and commercial-like launches (CLLs). Contrary to a view that GLs are more reliable, it found that the launch reliabilities under all three types cannot be considered statistically different with 95 percent confidence. An analytic approach was developed to determine whether a particular government launch program should be procured commercially. The study recommends an evolutionary approach to space launch commercialization, starting with small launchers and then medium-lift launchers such as the Deltas and Atlases. Whether the Titan IVs should be commercialized in the future depends on how well the commercialization of medium-lift launchers fares. The study also recommends that the Department of Defense concentrate its new launcher development on the most commercially relevant range, which is the capability to lift 10,000 to 50,000 pounds of payload into low earth orbits. Other recommendations are related to the deletion of undesirable contract features and steps to strengthen launch competitiveness.
Download or read book Space System Architecture Analysis and Wargaming written by Larry B. Rainey and published by CRC Press. This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space System Architecture Analysis and Wargaming covers two topics that are not currently covered in literature on subdisciplines of astronautics. It provides modeling and simulation tools to architect space systems and analysis, including detailed discussions of various tools: STK, SEAS, SOAP, AFSIM, EADSIM, and STORM.
Download or read book Alternatives for Future U S Space launch Capabilities written by and published by . This book was released on 2006 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Orbital Express Project of Bristol Aerospace and MicroSat Launch Systems Inc written by Geoffrey V. Hughes and published by AIAA. This book was released on 1996 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Orbital Express Project of Bristol Aerospace and MicroSat Launch Systems, Inc. is an important case study for universities, business schools, and companies wishing to study the actual development process of a new productin this case a small satellite launch vehicleand the tribulations associated with initiating such a project. Using actual company documentation, this study traces the cooperative attempt by the joint venture of International MicroSat and Bristol Aerospace to build a small launch vehicle. It is the only case study in existence concerning the Orbital Express project and covers both the technology and business aspects of the project.
Download or read book A Discrete event Simulation Model for Evaluating Air Force Reusable Military Launch Vehicle Prelaunch Operations written by Adam T. Stiegelmeier and published by . This book was released on 2006 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Architecture Education for Engineers and Architects written by Sandra Häuplik-Meusburger and published by Springer. This book was released on 2016-03-30 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book considers two key educational tools for future generations of professionals with a space architecture background in the 21st century: (1) introducing the discipline of space architecture into the space system engineering curricula; and (2) developing space architecture as a distinct, complete training curriculum. Professionals educated this way will help shift focus from solely engineering-driven transportation systems and “sortie” missions towards permanent off-world human presence. The architectural training teaches young professionals to operate at all scales from the “overall picture” down to the smallest details, to provide directive intention–not just analysis–to design opportunities, to address the relationship between human behavior and the built environment, and to interact with many diverse fields and disciplines throughout the project lifecycle. This book will benefit individuals and organizations responsible for planning transportation and habitat systems in space, while also providing detailed information on work and design processes for architects and engineers.
Download or read book A Framework for Safe System Design in Space Launch Vehicles written by Barret William Schlegelmilch and published by . This book was released on 2018 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: A hazard analysis for the test firing of NASA's Space Launch System core stage is performed using a systems-based alternative to the traditional reliability-based method. The method used, Systems-Theoretic Process Analysis (STPA), is shown to be a versatile and powerful tool in this application and by extension the development of future space launch vehicles. The Boeing Company has been selected by NASA as the prime contractor for the Space Launch System (SLS) cryogenic stages. As such, they are working with NASA to develop a comprehensive hazard analysis for core stage test firing and eventual launch operations. Developing, testing, and launching rockets is an inherently complex and high risk endeavor. Preceding the launch itself, one of the highest risk times in the operation of a rocket is the static fire testing, also called a hot fire. Hundreds of parameters need to be monitored in real time in order to ensure the system is operating nominally and equipment damage (and possible injury or death) will not occur. Depending on the point of the testing and the resultant speed at which events are occurring, different levels of automatic safing conditions and operator actions are required to protect the vehicle. Traditionally, the way these safing conditions are derived is through the evaluation of hazard reports, which are themselves based on a "reliability" model: hazards are seen to arise from the failure of individual components and are thus primarily mitigated through increasing component reliability or adding in redundancy. With the level of complexity and required safety of today's launch systems, it is beneficial to evaluate a new approach to identifying the underlying hazards in a system, including ones that arise from unsafe component interactions and not simply failures
Download or read book Design of Rockets and Space Launch Vehicles written by Donald L. Edberg and published by American Institute of Aeronautics and Astronautics Incorporated. This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: With growing interest in space activity and numerous new launchers in development, this book is a timely, comprehensive survey of important concepts and applications. It enhances understanding and provides exposure to practical aspects of design, manufacturing, testing, and engineering associated with these topics.
Download or read book Architecting Spacecraft With Sysml written by Sanford Friedenthal and published by Createspace Independent Publishing Platform. This book was released on 2017-10-21 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Guide to Apply a Model-based Systems Engineering Approach with SysML to Specify and Architect Systems. This book provides a straightforward guide to develop an architecture model of aSmall Satellite using the Systems Modeling Language (SysML(r)). SysML is a general-purpose modeling language used to specify and architect systems. Model-based Systems Engineering (MBSE) is intended to produce an integratedsystem model using SysML which reflects multiple views of the system to specify theinteraction and interconnection of its components, and their functions, states,interfaces, and performance and physical characteristics. The system model canenhance quality, reuse, and shared understanding of the system. This book can be used by instructors and students to learn how to apply MBSE with SysML, as wellas practitioners of MBSE and organizations as a reference approach for their application.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1996 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
