Force Limited Vibration Testing Monograph

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ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Force Limited Vibration Testing Monograph by : Terry D. Scharton

Download or read book Force Limited Vibration Testing Monograph written by Terry D. Scharton and published by . This book was released on 1997 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Validation of Force Limited Vibration Testing at NASA Langley Research Center

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ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Validation of Force Limited Vibration Testing at NASA Langley Research Center by : Chad E. Rice

Download or read book Validation of Force Limited Vibration Testing at NASA Langley Research Center written by Chad E. Rice and published by . This book was released on 2003 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Force Limited Vibration Testing Monograph

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Publisher : CreateSpace
ISBN 13 : 9781499162974
Total Pages : 118 pages
Book Rating : 4.1/5 (629 download)

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Book Synopsis Force Limited Vibration Testing Monograph by : T. D. Scharton

Download or read book Force Limited Vibration Testing Monograph written by T. D. Scharton and published by CreateSpace. This book was released on 2014-04-15 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work described in this paper was carried out by the Jet Propulsion Laboratory, California Institute of Technology under a contact with the National Aeronautics and Space Administration. The support of the NASA Headquarters Office of Chief Engineer for the development and documentation of the force limited vibration testing technology described in this monograph is gratefully acknowledged.

Validation of Force Limited Vibration Testing at NASA Langley Research Center

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721573219
Total Pages : 36 pages
Book Rating : 4.5/5 (732 download)

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Book Synopsis Validation of Force Limited Vibration Testing at NASA Langley Research Center by : National Aeronautics and Space Administration (NASA)

Download or read book Validation of Force Limited Vibration Testing at NASA Langley Research Center written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-20 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibration tests were performed to develop and validate the forced limited vibration testing capability at the NASA Langley Research Center. The force limited vibration test technique has been utilized at the Jet Propulsion Laboratory and other NASA centers to provide more realistic vibration test environments for aerospace flight hardware. In standard random vibration tests, the payload is mounted to a rigid fixture and the interface acceleration is controlled to a specified level based on a conservative estimate of the expected flight environment. In force limited vibration tests, both the acceleration and force are controlled at the mounting interface to compensate for differences between the flexible flight mounting and rigid test fixture. This minimizes the over test at the payload natural frequencies and results in more realistic forces being transmitted at the mounting interface. Force and acceleration response data was provided by NASA Goddard Space Flight Center for a test article that was flown in 1998 on a Black Brant sounding rocket. The measured flight interface acceleration data was used as the reference acceleration spectrum. Using this acceleration spectrum, three analytical methods were used to estimate the force limits. Standard random and force limited vibration tests were performed and the results are compared with the flight data. Rice, Chad and Buehrle, Ralph D. Langley Research Center NASA/TM-2003-212404, L-18280, NAS 1.15:212404

Benefits of Force Limiting Vibration Testing

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ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Benefits of Force Limiting Vibration Testing by :

Download or read book Benefits of Force Limiting Vibration Testing written by and published by . This book was released on 1999 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Development of a Force Specification for a Force-limited Random Vibration Test

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ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (683 download)

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Book Synopsis Development of a Force Specification for a Force-limited Random Vibration Test by :

Download or read book Development of a Force Specification for a Force-limited Random Vibration Test written by and published by . This book was released on 1996 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibration testing, techniques have been developed and employed that reduce the overtesting caused by the essentially infinite mechanical impedance of the shaker in conventional vibration tests. With these ''force-limiting'' techniques, two vibration test specifications are used: the conventional acceleration specification, and an interface force specification. The vibration level of the shake table is controlled such that neither the table acceleration nor the force transmitted to the test item exceeds its specification, hence the name ''dual control'' vibration test. The effect of limiting the shake table vibration to the force specification is to reduce (''notch'') the shaker acceleration near some of the test item's resonance frequencies. Several methods of deriving the force specification have been described in the literature. A new method is proposed in this paper that is based on a modal method of coupling two dynamic systems, in this case the ''source'' or launch vehicle, and the ''load'' or payload. The only information that is required is an experimentally-measurable frequency-response function (FRF) called the dynamic mass for both the source and the load. The method, referred to as the coupled system, modal approach (CSMA) method, is summarized and compared to an existing method of determining the force specification for force-limited vibration testing.

Force Limited Vibration Testing

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Publisher : Independently Published
ISBN 13 : 9781795771450
Total Pages : 66 pages
Book Rating : 4.7/5 (714 download)

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Book Synopsis Force Limited Vibration Testing by : NASA

Download or read book Force Limited Vibration Testing written by NASA and published by Independently Published. This book was released on 2019-02-03 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Force Limited Vibration Testing NASA-HDBK-7004C We print NASA's handbooks and standards for the convenience of those that use them on a daily basis. We print all of these a full 8 1/2 by 11 with large text so they are easy to read. Yes, color books are expensive to print so unless the information relies on the use of color for proper interpretation or understanding, we print most books in black and white to keep the cost down. All these documents are available for download for free from NASA, however printing them all over a network printer would take days. Why buy a book you can download free? We print this so you don't have to. All these books are available for free download from the government web site. Some are available only in electronic media. Some online docs are missing pages or barely legible. We at 4th Watch Publishing are former government employees, so we know how government employees actually use the standards. When a new standard is released, an engineer prints it out, punches holes and puts it in a 3-ring binder. While this is not a big deal for a 5 or 10-page document, many NIST documents are over 100 pages and printing a large document is a time- consuming effort. So, an engineer that's paid $75 an hour is spending hours simply printing out the tools needed to do the job. That's time that could be better spent doing engineering. We publish these documents so engineers can focus on what they were hired to do - engineering. It's much more cost-effective to just order the latest version from Amazon.com If there is a standard you would like published, let us know. Our web site is www.usgovpub.com Here are some other titles we print on Amazon.com NASA-STD-5001BStructural Design and Test Factors of Safety for Spaceflight Hardware NASA-STD-5006AGeneral Welding Requirements for Aerospace Materials NASA-STD-5008BProtective Coating of Carbon Steel, Stainless Steel, and Aluminum on Launch Structures, Facilities, and Ground Support Equipment NASA-STD-5009ANondestructive Evaluation Requirements for Fracture-Critical Metallic Components NASA-STD-5012BStrength and Life Assessment Requirements for Liquid-Fueled Space Propulsion System Engines NASA-STD-5019AFracture Control Requirements for Spaceflight Hardware NASA-STD-5005DStandard for The Design and Fabrication of Ground Support Equipment NASA-HDBK-8739.21Workmanship Manual for Electrostatic Discharge Control NASA-HDBK 8739.23ANASA Complex Electronics Handbook for Assurance Professionals NASA-HDBK-8719.14 Handbook for Limiting Orbital Debris NASA-HDBK-8709.22Safety and Mission Assurance Acronyms, Abbreviations, and Definitions NASA-HDBK-7009NASA Handbook for Models and Simulations: An Implementation Guide For NASA-STD-7009 NASA-HDBK-8739.19-2Measuring and Test Equipment Specifications NASA Measurement Quality Assurance Handbook - Annex 2 NASA-HDBK-8739.19-3Measurement Uncertainty Analysis Principles and Methods NASA Measurement Quality Assurance Handbook - Annex 3 NASA-HDBK-8739.19-4Estimation and Evaluation of Measurement Decision Risk NASA Measurement Quality Assurance Handbook - Annex 4 NASA RCMReliability-Centered Maintenance Guide for Facilities and Collateral Equipment NASA SP-2016-3404NASA Work Breakdown Structure (WBS) Handbook NASA-GB-8719.13NASA Software Safety Guidebook NPR 8715.3DNASA General Safety Program Requirements NSS 1740.16Safety Standard for Hydrogen and Hydrogen Systems NASA-STD-8719.9BNASA Lifting Standard JPR No.: 1700.1KJSC Safety and Health Handbook SP-2016-6105NASA Systems Engineering Handbook NASA CEH v.4.0NASA Cost Estimating Handbook NASA-HDBK-4006ALow Earth Orbit Spacecraft Charging Design Handbook

Force-limited Vibration Tests Aplied to the FORTE' Satellite

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ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (683 download)

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Book Synopsis Force-limited Vibration Tests Aplied to the FORTE' Satellite by :

Download or read book Force-limited Vibration Tests Aplied to the FORTE' Satellite written by and published by . This book was released on 1996 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: A force limited random vibration test was conducted on a small satellite called FORTE(prime). This type of vibration test reduces the over testing that can occur in a conventional vibration test. Two vibration specifications were used in the test: The conventional base acceleration specification, and an interface force specification. The vibration level of the shaker was controlled such that neither the table acceleration nor the force transmitted to the test item exceeded its specification. The effect of limiting the shake table vibration to the force specification was to reduce (or ''notch'') the shaker acceleration near some of the satellite's resonance frequencies. This paper describes the force limited test conducted for the FORTE(prime) satellite. The satellite and its dynamic properties are discussed, and the concepts of force limiting theory are summarized. The hardware and setup of the test are then described, and the results of the force limited vibration test are discussed.

Investigation of the Semi-empirical Method for Force Limited Vibration Testing

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (11 download)

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Book Synopsis Investigation of the Semi-empirical Method for Force Limited Vibration Testing by : Vijayamohan Rao Dharanipathi

Download or read book Investigation of the Semi-empirical Method for Force Limited Vibration Testing written by Vijayamohan Rao Dharanipathi and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conventional vibration testing of aerospace hardware is normally performed by controlling the acceleration input to the base of a test item to the specifications, namely the envelope of the acceleration peaks of the flight environment. In the nineties, NASA JPL led the development and implementation of an improved method called Force Limited Vibration (FLV) testing. In addition to controlling the input acceleration, the FLV testing measures and limits the reaction forces between the test item and the shaker. This force limiting technique results in acceleration notching at predominant natural frequencies of the test item. Due to its partly empirical nature, the crucial coefficient, C 2, still requires some judgment for its selection. Although the semiempirical method is very powerful and has been implemented successfully on several space missions, there is still some work required to realize it and make it acceptable to everyone. The objective of this study is to present a comprehensive and complete analytical and experimental investigation on the semi-empirical method.

Force Limited Vibration Testing Monograph Final Report... NASA-RP-1403... Oct. 7, 1997

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (213 download)

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Book Synopsis Force Limited Vibration Testing Monograph Final Report... NASA-RP-1403... Oct. 7, 1997 by : United States. National Aeronautics and Space Administration

Download or read book Force Limited Vibration Testing Monograph Final Report... NASA-RP-1403... Oct. 7, 1997 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1998* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Investigation of the C2 Parameter of Force Limited Vibration Testing for Multiple Degrees-of-freedom Systems

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (336 download)

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Book Synopsis Investigation of the C2 Parameter of Force Limited Vibration Testing for Multiple Degrees-of-freedom Systems by : Paul Marchand

Download or read book Investigation of the C2 Parameter of Force Limited Vibration Testing for Multiple Degrees-of-freedom Systems written by Paul Marchand and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Application of the Semi-Empirical Force-Limiting Approach for the Connect Scan Testbed

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Publisher : BiblioGov
ISBN 13 : 9781289091453
Total Pages : 38 pages
Book Rating : 4.0/5 (914 download)

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Book Synopsis Application of the Semi-Empirical Force-Limiting Approach for the Connect Scan Testbed by : Lucas Staab

Download or read book Application of the Semi-Empirical Force-Limiting Approach for the Connect Scan Testbed written by Lucas Staab and published by BiblioGov. This book was released on 2013-06 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The semi-empirical force-limited vibration method was developed and implemented for payload testing to limit the structural impedance mismatch (high force) that occurs during shaker vibration testing. The method has since been extended for use in analytical models. The Space Communications and Navigation Testbed (SCAN Testbed), known at NASA Glenn Research Center (GRC) as, the Communications, Navigation, and Networking re-Configurable Testbed (CoNNeCT) project utilized force-limited testing and analysis following the semi-empirical approach. This presentation presents the steps in performing a force-limited analysis and then compares the results to test data recovered during the CoNNeCT force-limited random vibration qualification test that took place at NASA Glenn Research Center (GRC) in the Structural Dynamics Laboratory (SDL) December 19, 2010 - January 7, 2011. A compilation of lessons learned and considerations for future force-limited tests is also included.

Force Limited Random Vibration Testing: the Computation of the Semi-empirical Constant C2 for a Real Test Article and Unknown Supporting Structure

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ISBN 13 : 9789036540964
Total Pages : 214 pages
Book Rating : 4.5/5 (49 download)

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Book Synopsis Force Limited Random Vibration Testing: the Computation of the Semi-empirical Constant C2 for a Real Test Article and Unknown Supporting Structure by : Jacob Job Wijker

Download or read book Force Limited Random Vibration Testing: the Computation of the Semi-empirical Constant C2 for a Real Test Article and Unknown Supporting Structure written by Jacob Job Wijker and published by . This book was released on 2016 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Investigation of the C2 Parameter of Force Limited Vibration Testing for Multiple Degrees-of-freedom Systems

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (336 download)

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Book Synopsis Investigation of the C2 Parameter of Force Limited Vibration Testing for Multiple Degrees-of-freedom Systems by : Paul Marchand

Download or read book Investigation of the C2 Parameter of Force Limited Vibration Testing for Multiple Degrees-of-freedom Systems written by Paul Marchand and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Developing Force-limited Random Vibration Test Specifications for Nonlinear Systems Using the Frequency-shift Method

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ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (429 download)

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Book Synopsis Developing Force-limited Random Vibration Test Specifications for Nonlinear Systems Using the Frequency-shift Method by : Gregory L. Davis

Download or read book Developing Force-limited Random Vibration Test Specifications for Nonlinear Systems Using the Frequency-shift Method written by Gregory L. Davis and published by . This book was released on 1999 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advanced Aerospace Applications, Volume 1

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Publisher : Springer Science & Business Media
ISBN 13 : 1441993029
Total Pages : 362 pages
Book Rating : 4.4/5 (419 download)

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Book Synopsis Advanced Aerospace Applications, Volume 1 by : Tom Proulx

Download or read book Advanced Aerospace Applications, Volume 1 written by Tom Proulx and published by Springer Science & Business Media. This book was released on 2011-04-02 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Aerospace Applications, Volume 1. Proceedings of the 29th IMAC, A Conference and Exposition on Structural Dynamics, 2011, the first volume of six from the Conference, brings together 32 contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on Aeroelasticity, Ground Testing, Dynamic Testing of Aerospace Structures, and Random Vibration.

Nineteenth Space Simulation Conference Cost Effective Testing for the 21st Century

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ISBN 13 :
Total Pages : 446 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Nineteenth Space Simulation Conference Cost Effective Testing for the 21st Century by :

Download or read book Nineteenth Space Simulation Conference Cost Effective Testing for the 21st Century written by and published by . This book was released on 1997 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: