Download or read book Shock Spectrum Measurements written by Frank W. Galbraith and published by . This book was released on 1965 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: A total of twelve reed gages were installed to measure displacement shock spectre resulting from Project Gnome underground nuclear explosion.
Download or read book Shock Spectrum Measurements written by M. V. Barton and published by . This book was released on 1962 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twelve reed gages were installed for horizontal and vertical displacement shock spectrum measurements on the GNOME event. Seven of the 12 reed gages were placed on the earth's surface at various ranges from surface zero. Four of the gages were placed in the GNOME tunnel. One gage was placed in the International MineralsAND Chemical Corporation Mine (Shaft No. 4) approximately nine miles from the GNOME site. Usable data were obtained from nine of the 10 records recovered to date. The gage in the IMC mine recorded no displacements. Records from the gages in tunnel nearest zero were not recovered. (Author).
Download or read book Shock Spectrum Measurements written by Frank W. Galbraith and published by . This book was released on 1970 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ground shock spectrum measurements were made for the Prairie Flat 500-ton HE test and for the associated HEST test using mechanical reed gages. These tests were conducted at the Defence Research Establishment Suffield at Ralston, Alberta, Canada, and were sponsored by the Defense Atomic Support Agency. A total of 33 gages were used for the 500-ton test. Of these, 22 were in the free-field soil at ranges having overpressures of 840 (expected 1000), 600, and 300 psi and were oriented to measure vertical, horizontal-radial, and horizontal-transverse ground shock at the surface and at depths of 5 and 10 feet. The remaining 11 gages were in three model structures at overpressures of 600, 450, and 300 psi and were oriented vertically and horizontal-radially. The results of the 500-ton test indicated greater than expected ground shock. The model structures responded about as the free field at their mid-depths except for resonances peculiar to the structures themselves. The 500-ton free-field ground shock was somewhat greater than that from the HEST test especially in the horizontal direction. The spectra measured within the structures for the HEST and 500-ton tests were quite similar. (Author).
Download or read book Mechanical Vibration and Shock Measurements written by Jens Trampe Broch and published by . This book was released on 1980 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Measurement System Phase Response on Shock Spectrum Computation written by P. L. Walter and published by . This book was released on 1983 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the standard methods for characterizing mechanical shock is by means of the shock spectrum. The principal application of the shock spectrum in aerospace technology is to permit component shock test specifications to be generated, independent of specific time histories. Inattention to the dynamics of the instrumentation system used to measure mechanical shock can result in distorted test data. Erroneous component test specifications will originate from shock spectra calculations based on these distorted data. This documents' premise is that measurement system design is frequently based upon amplitude response considerations with phase response ignored. In structural testing nonlinear phase response in measurement systems results in distorted transient data being recorded for analysis with resultant error in the computed shock spectra. Design guidelines are provided in this work to preclude these errors from occuring.
Download or read book Principles and Techniques of Shock Data Analysis written by Ronald D. Kelly and published by . This book was released on 1971 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Footprints in Cambridge and Aviation Industries of China written by Yanzhong Zhang and published by Springer Nature. This book was released on 2021-10-21 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a collection of academician Yanzhong Zhang’s research papers published in English. It represents the development of aerospace systems engineering and information technology in China over the past 4 decades. Regarded as the crucial reference materials of related disciplines, it falls into three categories, namely, information technique, aeronautical engineering strategy issue of development, as well as PhD thesis.
Download or read book Shock Spectra Measurements Using Multiple Mechanical Gages written by V. F. DeVost and published by . This book was released on 1967 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance and characteristics of a family of oscillatory and nonoscillatory mechanical gages, used to measure shock spectrally, are discussed. The gages are simple, self-recording, mass-spring devices ranging in natural frequency from 12 Hz to 18.1 kHz. Response of the gages to simple and complex shocks is compared with analog responses to the same shocks. The use of a number of mechanical gages to measure shock significantly minimizes individual gage error and defines spectra of shock accurately enough to estimate some of the critical parameters and characteristics of shock. (Author).
Download or read book Mechanical Vibration and Shock Analysis Sinusoidal Vibration written by Christian Lalanne and published by John Wiley & Sons. This book was released on 2010-01-05 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Vibration and Shock Analysis, Second Edition Volume 1: Sinusoidal Vibration The relative and absolute response of a mechanical system with a single degree of freedom is considered for arbitrary excitation, and its transfer function defined in various forms. The characteristics of sinusoidal vibration are examined in the context both of the real world and of laboratory tests, and for both transient and steady state response of the single-degree-of-freedom system. Viscous damping and then nonlinear damping are considered. The various types of swept sine perturbations and their properties are described and, for the one-degree-of-freedom system, the consequence of an inappropriate choice of sweep rate are considered. From the latter, rules governing the choice of suitable sweep rates are developed. The Mechanical Vibration and Shock Analysis five-volume series has been written with both the professional engineer and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and extremely significant areas of mechanical engineering, from both a theoretical and practical point of view. The five volumes cover all the necessary issues in this area of mechanical engineering. The theoretical analyses are placed in the context of both the real world and the laboratory, which is essential for the development of specifications.
Download or read book Mechanical Vibration and Shock Analysis Mechanical Shock written by Christian Lalanne and published by John Wiley & Sons. This book was released on 2010-01-05 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Vibration and Shock Analysis, Second Edition Volume 2: Mechanical Shock This volume considers the shock response spectrum, its various definitions, its properties, and the assumptions involved in its calculation. In developing the practical application of these concepts, the shock shapes or profiles most often used in test facilities are presented, together with their characteristics and indications of how to establish test configurations comparable with those of the real-world, measured environment. Following this analysis there is a case study of how to meet these specifications using standard laboratory equipment, shock machines, electrodynamic exciters driven by a time signal or a response spectrum. Discussion of the limitations, advantages and disadvantages of each method is presented. The Mechanical Vibration and Shock Analysis five-volume series has been written with both the professional engineer and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and extremely significant areas of mechanical engineering, from both a theoretical and practical point of view. The five volumes cover all the necessary issues in this area of mechanical engineering. The theoretical analyses are placed in the context of both the real world and the laboratory, which is essential for the development of specifications.
Download or read book The Science and Engineering of Mechanical Shock written by Carl Sisemore and published by Springer. This book was released on 2019-05-08 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book fills a unique position in the literature as a dedicated mechanical shock analysis book. Because shock events can be extremely damaging, mechanical shock is an important topic for engineers to understand. This book provides the reader with the tools needed to quantitatively describe shock environments and their damage potential on aerospace, civil, naval and mechanical systems. The authors include the relevant history of how shock testing and analysis came to its current state and a discussion of the different types of shock environments typically experienced by systems. Development of single-degree-of-freedom theory and the theory of the shock response spectra are covered, consistent with treatment of shock spectra theory in the literature. What is unique is the expansion to other types of spectra including less common types of shock spectra and energy spectra methods using fundamental principles of structural dynamics. In addition, non-spectral methods are discussed with their applications. Non-spectral methods are almost completely absent from the current books on mechanical shock. Multi-degree-of-freedom shock spectra and multi-degree-of-freedom testing are discussed and the theory is developed. Addressing an emerging field for laboratory shock testing, the authors bring together information currently available only in journals and conference publications. The volume is ideal for engineers, structural designers, and structural materials fabricators needing a foundation to practically analyze shock environments and understand their role in structural design.
Download or read book Mechanical Vibration and Shock Signal Processing Shock Response Spectrum Analysis written by British Standards Institute Staff and published by . This book was released on 2007-06-29 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibration, Vibration measurement, Mechanical shock, Data processing, Signal processing, Data, Spectra, Wave properties and phenomena, Mathematical calculations
Download or read book The Shock and Vibration Bulletin written by and published by . This book was released on 1961 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanical Vibration and Shock Analysis Mechanical Shock written by Christian Lalanne and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanical Vibration and Shock Analysis, Second Edition Volume 2: Mechanical Shock This volume considers the shock response spectrum, its various definitions, its properties, and the assumptions involved in its calculation. In developing the practical application of these concepts, the shock shapes or profiles most often used in test facilities are presented, together with their characteristics and indications of how to establish test configurations comparable with those of the real-world, measured environment. Following this analysis there is a case study of how to meet these specifications using standard laboratory equipment, shock machines, electrodynamic exciters driven by a time signal or a response spectrum. Discussion of the limitations, advantages and disadvantages of each method is presented. The Mechanical Vibration and Shock Analysis five-volume series has been written with both the professional engineer and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and extremely significant areas of mechanical engineering, from both a theoretical and practical point of view. The five volumes cover all the necessary issues in this area of mechanical engineering. The theoretical analyses are placed in the context of both the real world and the laboratory, which is essential for the development of specifications.
Download or read book Mechanical Vibration and Shock Analysis Mechanical Shock written by Christian Lalanne and published by John Wiley & Sons. This book was released on 2014-04-17 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume considers the shock response spectrum, its various definitions, properties and the assumptions involved in its calculation. In developing the practical application of these concepts, the forms of shock most often used with test facilities are presented together with their characteristics and indications of how to establish test configurations comparable with those in the real, measured environment. This is followed by a demonstration of how to meet these specifications using standard laboratory equipment – shock machines, electrodynamic exciters driven by a time signal or a response spectrum – with a discussion on the limitations, advantages and disadvantages of each method.
Download or read book Shock Spectrum Analysis of the Response of a Spring Mass System written by Reginald Hansard Jones and published by . This book was released on 1962 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Variables Upon Pyrotechnically Induced Shock Response Spectra written by James Lee Smith and published by . This book was released on 1988 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
