PROPULSION 2000 PROGRAM Phase 2
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Naval Postgraduate School
NPS-97-06-003 NAVAL POSTGRADUATE SCHOOL MONTEREY, CALIFORNIA SHIP ANTI BALLISTIC MISSILE RESPONSE (SABR) by LT Allen P. Johnson LT David C. Leiker LT Bryan Breeden ENS Parker Carlisle LT Willard Earl Duff ENS Michael Diersing LT Paul F. Fischer ENS Ryan Devlin LT Nathan Hornback ENS Christopher Glenn TDSI Students LT Chris Hoffmeister, USN LT John Kelly, USN LTC Tay Boon Chong, SAF LTC Yap Kwee Chye, SAF MAJ Phang Nyit Sing, SAF CPT Low Wee Meng, SAF CPT Ang Keng-ern, SAF CPT Ohad Berman, IDF Mr. Fann Chee Meng, DSTA, Singapore Mr. Chin Chee Kian, DSTA, Singapore Mr. Yeo Jiunn Wah, DSTA, Singapore June 2006 Approved for public release; distribution is unlimited. Prepared for: Deputy Chief of Naval Operations for Warfare Requirements and Programs (OPNAV N7), 2000 Navy Pentagon, Rm. 4E392, Washington, D.C. 20350-2000 THIS PAGE INTENTIONALLY LEFT BLANK REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302, and to the Office of Management and Budget, Paperwork Reduction Project (0704-0188) Washington, DC 20503. 1. AGENCY USE ONLY (Leave blank) 2. REPORT DATE 3. -
Enabling Sustainable Exploration Through the Commercial Development of Space
54th International Astronautical Congress 2003 (IAC 2003) Bremen, Germany 29 September - 3 October 2003 Volume 1 of 8 ISBN: 978-1-61839-418-7 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 Some format issues inherent in the e-media version may also appear in this print version. Copyright© (2003) by the International Astronautical Federation All rights reserved. Printed by Curran Associates, Inc. (2012) For permission requests, please contact the International Astronautical Federation at the address below. International Astronautical Federation 94 bis, Avenue de Suffren 75015 PARIS - France Phone: +33 1 45 67 42 60 Fax: +33 1 42 73 21 20 [email protected] Additional copies of this publication are available from: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 USA Phone: 845-758-0400 Fax: 845-758-2634 Email: [email protected] Web: www.proceedings.com TABLE OF CONTENTS VOLUME 1 Enabling Sustainable Exploration through the Commercial Development of Space .................................................................................1 Mark Nall, Joseph Casas Space Telescope Mission Design For L2 Point Stationing .............................................................................................................................6 Jill M. Cattrysse Interplanetary Missions Utilising Capture and Escape Through Lagrange Points..................................................................................14 Stephen Kemble A Numerical Study of the Gravitational -
Breakthrough Propulsion Study Assessing Interstellar Flight Challenges and Prospects
Breakthrough Propulsion Study Assessing Interstellar Flight Challenges and Prospects NASA Grant No. NNX17AE81G First Year Report Prepared by: Marc G. Millis, Jeff Greason, Rhonda Stevenson Tau Zero Foundation Business Office: 1053 East Third Avenue Broomfield, CO 80020 Prepared for: NASA Headquarters, Space Technology Mission Directorate (STMD) and NASA Innovative Advanced Concepts (NIAC) Washington, DC 20546 June 2018 Millis 2018 Grant NNX17AE81G_for_CR.docx pg 1 of 69 ABSTRACT Progress toward developing an evaluation process for interstellar propulsion and power options is described. The goal is to contrast the challenges, mission choices, and emerging prospects for propulsion and power, to identify which prospects might be more advantageous and under what circumstances, and to identify which technology details might have greater impacts. Unlike prior studies, the infrastructure expenses and prospects for breakthrough advances are included. This first year's focus is on determining the key questions to enable the analysis. Accordingly, a work breakdown structure to organize the information and associated list of variables is offered. A flow diagram of the basic analysis is presented, as well as more detailed methods to convert the performance measures of disparate propulsion methods into common measures of energy, mass, time, and power. Other methods for equitable comparisons include evaluating the prospects under the same assumptions of payload, mission trajectory, and available energy. Missions are divided into three eras of readiness (precursors, era of infrastructure, and era of breakthroughs) as a first step before proceeding to include comparisons of technology advancement rates. Final evaluation "figures of merit" are offered. Preliminary lists of mission architectures and propulsion prospects are provided. -
Review of Laser Lightcraft Propulsion System (Preprint) 5B
This document is made available through the declassification efforts and research of John Greenewald, Jr., creator of: The Black Vault The Black Vault is the largest online Freedom of Information Act (FOIA) document clearinghouse in the world. The research efforts here are responsible for the declassification of hundreds of thousands of pages released by the U.S. Government & Military. Discover the Truth at: http://www.theblackvault.com Form Approved REPORT DOCUMENTATION PAGE OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing this collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Department of Defense, Washington Headquarters Services, Directorate for Information Operations and Reports (0704-0188), 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ADDRESS. 1. REPORT DATE (DD-MM-YYYY) 2. REPORT TYPE 3. DATES COVERED (From - To) 16-10-2007 Technical Paper 4. TITLE AND SUBTITLE 5a. CONTRACT NUMBER Review of Laser Lightcraft Propulsion System (Preprint) 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER Eric Davis (Institute for Advanced Studies at Austin); Franklin Mead (AFRL/RZSP) 48470159 5e. -
Review: Laser-Ablation Propulsion
JOURNAL OF PROPULSION AND POWER Vol. 26, No. 4, July–August 2010 Review: Laser-Ablation Propulsion Claude Phipps Photonic Associates, LLC, Santa Fe, New Mexico 87508 Mitat Birkan U.S. Air Force Office of Scientific Research, Arlington, VA 22203-1768 Willy Bohn BohnLaser Consult, 70569 Stuttgart, Germany Hans-Albert Eckel DLR, German Aerospace Center, 70569 Stuttgart, Germany Hideyuki Horisawa Tokai University, Hiratsuka 259-1292, Japan Thomas Lippert Paul Scherrer Institut, 5232 Villigen PSI Switzerland Max Michaelis University of KwaZulu–Natal, Durban 4001, South Africa Yuri Rezunkov Sosnovy Bor, Leningrad Region, Russia Akihiro Sasoh Nagoya University, Nagoya 464-8603, Japan Wolfgang Schall 71111 Waldenbuch, Germany Stefan Scharring DLR, German Aerospace Center, 70569 Stuttgart, Germany and John Sinko Kratos Defense and Security Solutions, Inc., Huntsville, Alabama 35805 DOI: 10.2514/1.43733 Claude Phipps earned B.S. and M.S. degrees from Massachusetts Institute of Technology and a Ph.D. from Stanford University in 1972. He worked in the Inertial Confinement Fusion Program at Lawrence Livermore Laboratory for two years and, since 1974, as a Senior Research Staff Member in the Advanced Optical Systems Group at Los Alamos (LANL). There, he conducted a research program on mechanical and thermal coupling of pulsed lasers to targets using high-energy-laser facilities in the United States and United Kingdom, and he developed a model for vacuum laser impulse prediction. From 1994 to 1995, he was Associate Director of the Alliance for Photonic Technology at LANL. In 1995, he formed Photonic Associates, which is devoted to applications of laser space propulsion. He is the author of 110 papers and 40 invited talks and an editor of a book on laser ablation, and he has been the organizer and chair of seven symposia on high-power laser ablation. -
Vector Control of an Induction Motor Based on a DSP
Vector Control of an Induction Motor based on a DSP Master of Science Thesis QIAN CHENG LEI YUAN Department of Energy and Environment Division of Electric Power Engineering CHALMERS UNIVERSITY OF TECHNOLOGY G¨oteborg, Sweden 2011 Vector Control of an Induction Motor based on a DSP QIAN CHENG LEI YUAN Department of Energy and Environment Division of Electric Power Engineering CHALMERS UNIVERSITY OF TECHNOLOGY G¨oteborg, Sweden 2011 Vector Control of an Induction Motor based on a DSP QIAN CHENG LEI YUAN © QIAN CHENG LEI YUAN, 2011. Department of Energy and Environment Division of Electric Power Engineering Chalmers University of Technology SE–412 96 G¨oteborg Sweden Telephone +46 (0)31–772 1000 Chalmers Bibliotek, Reproservice G¨oteborg, Sweden 2011 Vector Control of an Induction Motor based on a DSP QIAN CHENG LEI YUAN Department of Energy and Environment Division of Electric Power Engineering Chalmers University of Technology Abstract In this thesis project, a vector control system for an induction motor is implemented on an evaluation board. By comparing the pros and cons of eight candidates of evaluation boards, the TMS320F28335 DSP Experimenter Kit is selected as the digital controller of the vector control system. Necessary peripheral and interface circuits are built for the signal measurement, the three-phase inverter control and the system protection. These circuits work appropriately except that the conditioning circuit for analog-to-digital con- version contains too much noise. At the stage of the control algorithm design, the designed vector control system is simulated in Matlab/Simulink with both S-function and Simulink blocks. The simulation results meet the design specifications well. -
Abstract Controlling Ac Motor Using Arduino
ABSTRACT CONTROLLING AC MOTOR USING ARDUINO MICROCONTROLLER Nithesh Reddy Nannuri, M.S. Department of Electrical Engineering Northern Illinois University, 2014 Donald S Zinger, Director Space vector modulation (SVM) is a technique used for generating alternating current waveforms to control pulse width modulation signals (PWM). It provides better results of PWM signals compared to other techniques. CORDIC algorithm calculates hyperbolic and trigonometric functions of sine, cosine, magnitude and phase using bit shift, addition and multiplication operations. This thesis implements SVM with Arduino microcontroller using CORDIC algorithm. This algorithm is used to calculate the PWM timing signals which are used to control the motor. Comparison of the time taken to calculate sinusoidal signal using Arduino and CORDIC algorithm was also done. NORTHERN ILLINOIS UNIVERSITY DEKALB, ILLINOIS DECEMBER 2014 CONTROLLING AC MOTOR USING ARDUINO MICROCONTROLLER BY NITHESH REDDY NANNURI ©2014 Nithesh Reddy Nannuri A THESIS SUBMITTED TO THE GRADUATE SCHOOL IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE MASTER OF SCIENCE DEPARTMENT OF ELECTRICAL ENGINEERING Thesis Director: Dr. Donald S Zinger ACKNOWLEDGEMENTS I would like to express my sincere gratitude to Dr. Donald S. Zinger for his continuous support and guidance in this thesis work as well as throughout my graduate study. I would like to thank Dr. Martin Kocanda and Dr. Peng-Yung Woo for serving as members of my thesis committee. I would like to thank my family for their unconditional love, continuous support, enduring patience and inspiring words. Finally, I would like to thank my friends and everyone who has directly or indirectly helped me for their cooperation in completing the thesis. -
A DSP Based Servo System Using Permanent Magnet Synchronous
A DSP Based Servo System Using Permanent Magnet Synchronous Motors PMSM Longya Xu, Minghua Fu, and Li Zhen The Ohio State University Department of Electrical Engineering 2015 Neil Avenue Columbus, OH 43210 Abstract- A digital servo system using a Digital Signal Pro cessor DSP is presented in this pap er. A Permanent Magnet Synchronous Motor PMSM with rotor p osition enco der and Hall sensor is used. The eld oriented vector control technique is employed to achieve robust p erformance and fast torque resp onse. The system uses p osition and sp eed regulations as the system outer lo op, and the current regulation with vector control as the inner lo op. A DSP system using TI's TMS320C240 is develop ed, and the prop osed digital control strategy is implemented in the DSP. Key Words: Vector Control, Motion Control, Servo System, Digital Control, Permanent Mag- net Synchronous Motor PMSM, Digital Signal Pro cessor DSP I. Intro duction Precise motion control plays an imp ortant role in various areas such as automation industry, semiconductor industry, etc. Permanent magnet synchronous motors PMSM are ideal for advanced motion control systems for their p otentials of high eciency, high torque to current ratio, and low inertia. Advances in Digital Signal Pro cessors DSP have greatly enhanced the p otential of PMSM in servo applications. Digital control can b e implemented in the DSP, which makes it sup erior to analog based stepp er control, since the controller is much more compact, reliable, and exible. High p erformance of PMSM can be obtained by means of eld oriented vector control, which is only realizable in a digital based system. -
Field Oriented Control 3-Phase Ac-Motors
Field Orientated Control of 3-Phase AC-Motors Literature Number: BPRA073 Texas Instruments Europe February 1998 IMPORTANT NOTICE Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. TI warrants performance of its semiconductor products and related software to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. Certain applications using semiconductor products may involve potential risks of death, personal injury, or severe property or environmental damage ("Critical Applications"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. Inclusion of TI products in such applications is understood to be fully at the risk of the customer. Use of TI products in such applications requires the written approval of an appropriate TI officer. Questions concerning potential risk applications should be directed to TI through a local SC sales office. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards should be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. -
Nasa and the Search for Technosignatures
NASA AND THE SEARCH FOR TECHNOSIGNATURES A Report from the NASA Technosignatures Workshop NOVEMBER 28, 2018 NASA TECHNOSIGNATURES WORKSHOP REPORT CONTENTS 1 INTRODUCTION .................................................................................................................................................................... 1 What are Technosignatures? .................................................................................................................................... 2 What Are Good Technosignatures to Look For? ....................................................................................................... 2 Maturity of the Field ................................................................................................................................................... 5 Breadth of the Field ................................................................................................................................................... 5 Limitations of This Document .................................................................................................................................... 6 Authors of This Document ......................................................................................................................................... 6 2 EXISTING UPPER LIMITS ON TECHNOSIGNATURES ....................................................................................................... 9 Limits and the Limitations of Limits ........................................................................................................................... -
Electromechanical Thrust Vector Control Systems for the Vega-C Launcher
DOI: 10.13009/EUCASS2019-186 8TH EUROPEAN CONFERENCE FOR AERONAUTICS AND SPACE SCIENCES (EUCASS) Electromechanical Thrust Vector Control Systems for the Vega-C launcher Gael Dée *, Tillo Vanthuyne ** , Alessandro Potini ***, Ignasi Pardos ****, Guerric De Crombrugghe ***** * SABCA Haachtsesteenweg 1470, 1130 Brussels. Email: [email protected] ** SABCA Haachtsesteenweg 1470, 1130 Brussels. Email: [email protected] *** AVIO Via degli Esplosivi, 1 Colleferro (RM), Italy. Email: [email protected] **** ESA/ESRIN Largo Galileo Galilei 1, 00044 Frascati, Italy. Email: [email protected] ***** SABCA Haachtsesteenweg 1470, 1130 Brussels. Email: [email protected] Abstract SABCA has designed electrical Thrust Vector Control (TVC) systems for the new VEGA-C launcher stages, based on the experience and lessons learned of the VEGA TVCs in operation since the first VEGA flight in February 2012. The paper presents the main drivers and lessons learned introduced in the design of this new generation of TVC systems. 1. Introduction The VEGA-C launcher, currently under development, is the evolution of the VEGA European launcher. It has been introduced to Increase performances, with a 2200 kg load capacity in LEO (a 700 kg increase with regard to VEGA) Reduce operating costs Reduce dependency on non-European sources Like VEGA, VEGA-C consists of 3 stages based on solid propulsion engines and a 4th stage based on a liquid propulsion engine. The first stage is based on the new P120C solid rocket motor, which is the largest monolithic carbon fibre SRM ever built. The P120C motor is also used as booster for the new Ariane 6 launcher, serving as a common building block for both launchers. -
Rita MBAYED Contribution to the Control of the Hybrid Excitation
Année 2012 UNIVERSITE DE CERGY PONTOISE THESE Présentée pour obtenir le grade de DOCTEUR DE L’UNIVERSITE DE CERGY PONTOISE Ecole doctorale: Sciences et Ingénierie Spécialité: Génie Electrique Soutenance publique prévue le 12 Décembre 2012 Par Rita MBAYED Contribution to the Control of the Hybrid Excitation Synchronous Machine for Embedded Applications JURY Rapporteurs : Prof. Gérard CHAMPENOIS Université de Poitiers Prof. Eric SEMAIL Ecole Nationale d'Arts et Métiers ParisTech Examinateurs : Prof. Francis LABRIQUE Université Catholique de Louvain Prof. Mohamed GABSI Ecole Normale Supérieure Cachan Dr. Vincent LANFRANCHI Université de Technologie de Compiègne Directeur de thèse : Prof. Eric MONMASSON Université de Cergy Pontoise Co-directeurs : Prof. GeorgesSALLOUM Université Libanaise Dr. Lionel VIDO Université de Cergy Pontoise Laboratoire SATIE - UCP/UMR 8029, 1 rue d’Eragny, 95031 Neuville sur Oise France The secret is comprised in three words: Work, finish, publish. Michael Faraday Ere many generations pass, our machinery will be driven by a power obtainable at any point of the universe. This idea is not novel. Men have been led to it long ago by instinct or reason; it has been expressed in many ways, and in many places, in the history of old and new. We find it in the delightful myth of Antheus, who derives power from the earth; we find it among the subtle speculations of one of your splendid mathematicians and in many hints and statements of thinkers of the present time. Throughout space there is energy. Is this energy static or kinetic? If static our hopes are in vain; if kinetic - and this we know it is, for certain - then it is a mere question of time when men will succeed in attaching their machinery to the very wheelwork of nature.