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Development Of A Thrust Stand Micro Balance To Assess Micropropulsion Performance
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Book Synopsis Development of a Thrust Stand Micro-Balance to Assess Micropropulsion Performance by :
Download or read book Development of a Thrust Stand Micro-Balance to Assess Micropropulsion Performance written by and published by . This book was released on 2005 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: As proposed spacecraft and their associated thrusters have become smaller, technology has been developed to meet the demand for performance measurements for the extremely low force levels produced. For such thrusters, it is also desirable to measure the mass changes resulting from the utilization of propellant associated with either the steady state thrust or transient impulses. A thrust stand and novel data analysis method is presented to make both thrust (or impulse) and mass change measurements concurrently. It is shown that very accurate and repeatable measurements of mass can be made using an existing thrust stand system. Furthermore, it is shown that impulse and mass measurements can be resolved at the same time from a single thrust stand trace.
Book Synopsis 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4400 - 05-4449 by :
Download or read book 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4400 - 05-4449 written by and published by . This book was released on 2005 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thrust Stand Micro-Mass Balance Diagnostic Techniques for the Direct Measurement of Specific Impulse (Preprint). by :
Download or read book Thrust Stand Micro-Mass Balance Diagnostic Techniques for the Direct Measurement of Specific Impulse (Preprint). written by and published by . This book was released on 2007 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: A technique has been developed to directly measure the specific impulse from pulsed thruster systems. The technique is especially useful for propulsion devices that utilize solid propellants where a direct measurement of the propellant mass flow is extremely difficult. A torsion balance is used with a horizontal axis of rotation. A thruster is placed on the balance such that the impulse of the thruster firing and the change in mass due to the expending of propellant act in the same direction. The coupled force measurements can then be decoupled to assess the ratio of the impulse to the weight of propellant expended, also known as the specific impulse. A model has been developed to show the utility of the technique for pulsed systems with a firing time less than the natural period of the balance. In this study, a laser ablation thruster using Buna, Viton and Teflon propellants was investigated. Specific impulse measurements on the order of 200 sec have been demonstrated with the laser ablation thruster.
Book Synopsis 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4050 - 05-4099 by :
Download or read book 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-4050 - 05-4099 written by and published by . This book was released on 2005 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impulse and Thrust Test of a Sublimating-solid Micropropulsion System by : Richard W. Forsythe
Download or read book Impulse and Thrust Test of a Sublimating-solid Micropropulsion System written by Richard W. Forsythe and published by . This book was released on 1966 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Micropropulsion for Nanosatellites by : Kean How Cheah
Download or read book Space Micropropulsion for Nanosatellites written by Kean How Cheah and published by Elsevier. This book was released on 2022-03-19 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: Space Micropropulsion for Nanosatellites: Progress, Challenges and Future features the latest developments and progress, the challenges faced by different researchers, and insights on future micropropulsion systems. Nanosatellites, in particular cubesats, are an effective test bed for new technologies in outer space. However, most of the nanosatellites have no propulsion system, which subsequently limits their maneuverability in space. - Explains why nanosatellite requirements need unique micro-technologies to help develop a compliant propulsion system - Features an overview of nanosatellites and the global nanosatellite market - Covers chemical and electric micropropulsion and the latest developments
Download or read book Aerospace America written by and published by . This book was released on 2005 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Micro Newton Thruster Development by : Franz Georg Hey
Download or read book Micro Newton Thruster Development written by Franz Georg Hey and published by Springer. This book was released on 2018-03-01 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Franz Georg Hey summarises the development and testing of a micro-Newton thrust balance, as well as the downscaling of a High Efficiency Multistage Plasma Thruster to micro-Newton thrust levels. The balance is tailored to fully characterise thruster candidates for the space based gravitational wave detector LISA. Thus, thrust noise measurements in sub-micro-Newton regime can be performed in the overall LISA bandwidth. The downscaled thruster can be operated down to serval tens of micro-Newton with a comparably high specific impulse. About the Author Franz Georg Hey works as mechanical, thermal, propulsion architect and technical lead of the micro‐Newton propulsion laboratory of Europe’s leading air and spacecraft manufacturer. The author is participating on major programmes for future satellite and electric propulsion development. The author’s research is performed in close collaboration with the Dresden University of Technology, the University of Bremen and the DLR Bremen.
Book Synopsis Construction and Performance of an Inverted Pendulum Thrust Balance by : Brett Robert Tartler
Download or read book Construction and Performance of an Inverted Pendulum Thrust Balance written by Brett Robert Tartler and published by . This book was released on 2010 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the work in this thesis was to devise a means of profiling the thrust of the MIT Space Propulsion Lab's (SPL) Diverging Cusped Field (DCF) thruster and, more generally, other thrusters of similar size and thrust levels. The former SPL thrust stand, which had been used to characterize the BHT-200 engine, was not suitable for the DCF because of its torsional style design. An entirely new, inverted pendulum-type balance needed to be built. The new design employs a vertical arm with the DCF situated at the top and a counterweight placed at the bottom. The vertical arm rotates at the fulcrum through a flexible pivot attached to a base. A horizontal thrust force from the DCF causes the balance to rotate. This motion is sensed by a linear variable differential transformer (LVDT) and counteracted by a force from a voice coil. The voice coil's neutralizing force nulls the balance back to an equilibrium position and supplies the thrust value produced by the DCF. The inverted pendulum thrust balance was built from an initial design proposed by Professor Manuel Martinez-Sanchez. Many of the electrical components found on the old thrust stand, like the LVDT and the voice coil, were incorporated into the new one. Additionally, the control software and hardware from the old stand required several changes and updates to be compatible with the new design. After the assembly of the new thrust balance, the issues of calibration and thermal drift during use were also addressed. Once a means of correcting the undesired operational forces and thermal effects had been established, the balance displayed thrust measurement within a range of 0mN to 23mN with an uncertainties as low as ±0.5mN.
Book Synopsis An Electrostatic Ion-guide and a High-resolution Thrust-stand for Characterization of Micro-propulsion Devices by :
Download or read book An Electrostatic Ion-guide and a High-resolution Thrust-stand for Characterization of Micro-propulsion Devices written by and published by . This book was released on 2015 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mots-clés de l'auteur: electrospray ; micro-thruster ; time-of-flight mass spectrometer (ToF-MS) ; ion-guide ; nano-Newton thrust stand ; thrust ; sputtering.
Book Synopsis Development of a Nano-Impulse Balance for Micropropulsion Systems by :
Download or read book Development of a Nano-Impulse Balance for Micropropulsion Systems written by and published by . This book was released on 2005 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several versions of a torsional impulse balance have been developed as a new diagnostic tool to study fundamental physical processes in micropropulsion systems. With respect to the transfer of momentum, direct measurements of the transient forces or total impulse delivered can lead to a better understanding and characterization of the efficiency of the thrust that is possible under different configurations. The impulse balance has been designed and tested with a robust calibration system to measure steady state and impulsive forces. The behavior of the impulse balance was thoroughly studied and characterized. An analytical model of the balance's motion was developed from the general equation of motion of an underdamped, harmonically oscillating system. A simple technique has been developed to accurately back out the force as a function of time from the experimental data. The latest version of the impulse balance also manages to resolve changes in mass, which is another key parameter of propulsion efficiency. These impulse balances have been used in different configurations to study many forms of micropropulsion, including the impulses caused by laser-surface interactions and the combustion of Tanner Research, Inc. MEMS-based solid propellant motors.
Book Synopsis Journal of Propulsion and Power by :
Download or read book Journal of Propulsion and Power written by and published by . This book was released on 2008 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit by :
Download or read book 34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit written by and published by . This book was released on 1998 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-3650 - 05-3699 by :
Download or read book 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit 10-13 July 2005, Tucson, Arizona: 05-3650 - 05-3699 written by and published by . This book was released on 2005 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Evaluation of the SPT-140 by :
Download or read book Performance Evaluation of the SPT-140 written by and published by . This book was released on 1997 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Review of United States Air Force and Department of Defense Aerospace Propulsion Needs by : National Research Council
Download or read book A Review of United States Air Force and Department of Defense Aerospace Propulsion Needs written by National Research Council and published by National Academies Press. This book was released on 2007-01-14 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rocket and air-breathing propulsion systems are the foundation on which planning for future aerospace systems rests. A Review of United States Air Force and Department of Defense Aerospace Propulsion Needs assesses the existing technical base in these areas and examines the future Air Force capabilities the base will be expected to support. This report also defines gaps and recommends where future warfighter capabilities not yet fully defined could be met by current science and technology development plans.
Book Synopsis Ion Propulsion for Space Flight by : Ernst Stuhlinger
Download or read book Ion Propulsion for Space Flight written by Ernst Stuhlinger and published by . This book was released on 1964 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
