Relevant bibliographies by topics / Vibrational analysis

Academic literature on the topic 'Vibrational analysis'

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Published: 4 June 2021
Last updated: 31 January 2023

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Journal articles on the topic "Vibrational analysis"

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Lian, Jijian, Yan Zheng, Chao Liang, and Bin Ma. "Analysis for the Vibration Mechanism of the Spillway Guide Wall Considering the Associated-Forced Coupled Vibration." Applied Sciences 9, no. 12 (June 25, 2019): 2572. http://dx.doi.org/10.3390/app9122572.

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During the flood discharge in large-scale hydraulic engineering projects, intense flow-induced vibrations may occur in hydraulic gates, gate piers, spillway guide walls, etc. Furthermore, the vibration mechanism is complicated. For the spillway guide wall, existing studies on the vibration mechanism usually focus on the vibrations caused by flow excitations, without considering the influence of dam vibration. According to prototype tests, the vibrations of the spillway guide wall and the dam show synchronization. Thus, this paper presents a new vibration mechanism of associated-forced coupled vibration (AFCV) for the spillway guide wall to investigate the dynamic responses and reveal coupled vibrational properties and vibrational correlations. Different from conventional flow-induced vibration theory, this paper considers the spillway guide wall as a lightweight accessory structure connected to a large-scale primary structure. A corresponding simplified theoretical model for the AFCV system is established, with theoretical derivations given. Then, several vibrational signals measured in different structures in prototype tests are handled by the cross-wavelet transform (XWS) to reveal the vibrational correlation between the spillway guide wall and the dam. Afterwards, mutual analyses of numeral simulation, theoretical derivation, and prototype data are employed to clarify the vibration mechanism of a spillway guide wall. The proposed mechanism can give more reasonable and accurate results regarding the dynamic response and amplitude coefficient of the guide wall. Moreover, by changing the parameters in the theoretical model through practical measures, the proposed vibration mechanism can provide benefits to vibration control and structural design.
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Qin, Zhu, Cao, Jiang, Gu, Wang, and Zhang. "Computational Analysis of Exotic Molecular and Atomic Vibrations in Ice XV." Molecules 24, no. 17 (August 27, 2019): 3115. http://dx.doi.org/10.3390/molecules24173115.

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It is always difficult to assign the peaks of a vibrational spectrum in the far-infrared region. The two distinct peaks seen in many ice phases are still a mystery to date. The normal modes of ice XV were calculated using the CASTEP code based on first-principles density functional theory. On the basis of vibrational modes analysis, we divided the translational modes into three categories: four-bond vibrations, which have the highest energy levels; two-bond vibrations, which have medium levels of energy; and relative vibrations between two sublattices, which have the lowest energy. Whale et al. found that some intramolecular stretching modes include the isolated vibration of only one O–H bond, whereas the others do not vibrate in ice XV. We verified this phenomenon in this study and attributed it to local tetrahedral deformation. Analysis of normal modes, especially in the translation and stretching band of ice XV, clarified the physical insights of the vibrational spectrum and can be used with other ice phases.
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Stephen, R. O., and Leonard D. M. Nokes. "Vibrational analysis." Journal of Biomedical Engineering 7, no. 4 (October 1985): 341–42. http://dx.doi.org/10.1016/0141-5425(85)90068-8.

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Jiang, Li, Zhenyue Ma, Jianwei Zhang, Mohd Yawar Ali Khan, Mengran Cheng, and Libin Wang. "Chaotic Characteristic Analysis of Vibration Response of Pumping Station Pipeline Using Improved Variational Mode Decomposition Method." Applied Sciences 11, no. 19 (September 23, 2021): 8864. http://dx.doi.org/10.3390/app11198864.

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The measured vibrational responses of the pumping station pipeline in the irrigation site were chosen to confirm the chaotic characteristics of the pumping station pipeline vibration and to determine the vibrational excitation that makes it chaotic. First, the chaotic properties of the pipeline vibration responses were investigated using a saturation correlation dimension and the maximum Lyapunov exponent. The vibration excitation with chaotic features was obtained using an improved variational mode decomposition (IVMD) method to examine the multi-time-scale chaotic characteristics of the pipeline vibration responses. The results show that the vibrational responses of each measuring point of the pipeline under different operating conditions have clear chaotic characteristics, where the chaotic characteristics of the axial points and bifurcated pipe points are relatively strong. The vibration of the operating conditions and measurement points affected by the unit’s operation and flow state change is further complicated. The intrinsic mode function (IMF) produces a low-dimensional chaotic attractor after the IVMD disrupts the vibration response. Still, the vibration excitation of the remaining components on behalf of the units does not have chaotic properties, implying that water pulsation excitation makes the pumping station pipeline vibrations chaotic. The vibration excitation caused by the unit’s operation covers the chaotic characteristics of the pipeline vibration and increases its uncertainty. The outcomes of this study provide a theoretical basis for further exploration of the vibration characteristics of pumping station pipelines, and a new method of chaos analysis is proposed.
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Zhang, Rong Hai, Ning Yuan Zhu, and Gai Pin Cai. "Surface Effect Mechanism Analysis for Vibrational Rotary Forging." Advanced Materials Research 314-316 (August 2011): 753–58. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.753.

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As a contact of vibrational rotary forging is highly nonlinear, the contact area and boundary between rotary toolhead and workpiece had more accurate calculation, made the contact boundary more tally with the actual situation. For a surface effect is of complexity for vibrational rotary forging, a vibrational rotary forging visco-elasticity plasticity model was built, and the visco-elasticity spatial matrix and the visco-plasticity spatial matrix were derived by the generalized Hooke's law in elasticity theory and the increase theory in mechanics of plasticity, then by the finite element founction of MATLAB for the surface effect analyzed during the vibrational rotary forging deformation, it is shown as blow: the surface effect should be appeared with high frequency vibration or low frequency vibration, but there are some conditions for surface effect produced during plastic process, and then the hypothesis that the friction vector is reversal of deformation load, and it is benefit to deformation process during the part of time in vibration period is validated.
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Mrozek, Piotr, Ewa Mrozek, and Andrzej Werner. "Electronic Speckle Pattern Interferometry for Vibrational Analysis of Cutting Tools." Acta Mechanica et Automatica 12, no. 2 (June 1, 2018): 135–40. http://dx.doi.org/10.2478/ama-2018-0021.

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Abstract A Michelson interferometer based ESPI system for static and vibration out of plane displacement measurements is presented. The aim of the article is to demonstrate the usability of ESPI non-contact measurement method in the field of machining. The correlation fringe patterns were visualized using custom software. The accuracy of ESPI interferometer was verified by the comparison with measurement results collected using industrial XL-80 laser system. The efficacy in vibration analysis was tested by studying the mode shapes and resonant frequencies of the transverse vibrations of square plates. The measurement methodology was used to determine natural frequencies and the shapes of vibrational modes of NFTe 100x1.2/64-II circular slitting saw. As a result the values of rotational speed that should be avoided during machining were determined.
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Selim, Mahmoud M., and Taher A. Nofal. "Vibrational analysis of nanoplate with surface irregularity via Kirchhoff plate theory." Nanomaterials and Nanotechnology 11 (January 1, 2021): 184798042110011. http://dx.doi.org/10.1177/18479804211001148.

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In this work, an attempt is done to apply the Kirchhoff plate theory to find out the vibrational analyses of a nanoplate incorporating surface irregularity effects. The effects of surface irregularity on natural frequency of vibration of nanomaterials, especially for nanoplates, have not been investigated before, and most of the previous research have been carried for regular nanoplates. Therefore, it must be emphasized that the vibrations of irregular nanoplate are novel and applicable for the nanodevices, in which nanoplates act as the main structure of the nanocomposite. The surface irregularity is assumed in the parabolic form at the surface of the nanoplate. A novel equation of motion and frequency equation is derived. The obtained results provide a better representation of the vibration behavior of irregular nanoplates. It has been observed that the presence of surface irregularity affects considerably on the natural frequency of vibrational nanoplates. In addition, it has been seen that the natural frequency of nanoplate decreases with the increase of surface irregularity parameter. Finally, it can be said, the present results may serve as useful references for designing oscillators and nanoscale devices, in which nanoplates act as a structural component for most prevalent nanocomposites structural element.
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Darbha, K., S. Ling, and A. Dasgupta. "Stress Analysis of Surface-Mount Interconnections Due to Vibrational Loading." Journal of Electronic Packaging 119, no. 3 (September 1, 1997): 183–88. http://dx.doi.org/10.1115/1.2792232.

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Recently, accelerated testing of surface mount interconnects under combined temperature and vibration environments has been recognized to be a necessary activity to ensure enhanced test-time compression. Successful use of vibration stresses requires a clear understanding of the correlation between vibrational damage and thermomechanical damage in surface mount solder joints. Hence, fatigue due to vibrational loading is important and accurate quantitative models are required to model effects due to vibrational fatigue. The proposed analysis in this paper contributes towards development of such quantitative models. This paper presents an approximate method to analyze stresses in surface mount solder joints subjected to vibration loading, using a generalized multidomain Rayleigh-Ritz approach (Ling and Dasgupta, 1995). The advantage of this approach is in its computational efficiency, compared to general-purpose finite element methods. Ling developed this approach in the context of thermomechanical stress analysis of solder joints. In this paper, the technique is modified and adapted for analyzing stresses caused by out-of-plane flexural dynamic modes of the printed wiring boards (PWBs). The analysis uses a two-step procedure where the local PWB curvatures are first estimated and the resulting deformations in the solder interconnect are then determined. The input boundary conditions for the first step are the bending moments in the PWB due to random vibrations. The stiffness of the interconnect assembly is then predicted using an energy method and curved-beam analysis. The bending moment and the computed stiffness of the interconnect assembly are then used to predict the local curvature of the PWB under any given surface-mount component by using an eigenfunction technique developed by Suhir (Suhir, 1988). In the second step of the analysis, the local curvature of the PWB is used as a boundary condition to predict the state of deformations, stresses, and strains in the solder joint using a modified version of the multidomain Rayleigh-Ritz approach. The overall method is applied to a specific example (J-lead solder joint) for illustrative purposes, and compared to finite element predictions for validation.
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Posada-Amarillas, Alvaro, and Ignacio L. Garzón. "Vibrational analysis ofNinclusters." Physical Review B 54, no. 15 (October 15, 1996): 10362–65. http://dx.doi.org/10.1103/physrevb.54.10362.

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Vinoth Kumar, K., T. G. Loganathan, A. Bharath, B. Shyam Sundar, and K. K. Abishek. "Comparative structural vibration analysis of machinery and GFRP with Al7075." MATEC Web of Conferences 144 (2018): 01009. http://dx.doi.org/10.1051/matecconf/201814401009.

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The current scenario of the industries is that the major losses in efficiency of a machine are due to vibration and friction. To reduce the detrimental effects of vibration we need to decrease the frequency and amplitude of vibration or completely eliminate vibration. To do that one must quantify vibration that already occurs in machinery and structural components. Which is the aim of this paper. The intention of the paper is to obtain and characterize the vibration signature of equipment used in a company and composite material. We have designed a setup to vibrational properties composites, vibrational signature of industrial equipment .To study vibration properties, micro-electrical mechanical systems (MEMS) based accelerometers are used to measure acceleration of the material about the datum when displaced. The data obtained is processed in MATLAB using ARDUINO relayed to computer to convert the data to frequency spectra using Fast-Fourier transforms (FFT). We ultimately compared the vibrational properties of two lathes used at a metal fabrication plant operating at different Conditions and quantified the vibration results using Fast Fourier Transforms (FFT) algorithm. The vibration signatures of a composite is studied along with which various properties like Damping Coefficient, Free Vibration, GFRP, Natural Frequency applications are studied.
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Dissertations / Theses on the topic "Vibrational analysis"

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Mahdi, Hassan Hamoodi. "Vibrational modal analysis of rotating machines." Thesis, University of Hertfordshire, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303391.

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James, Philippe Pierre. "A technique for the assessment of strength of coupling between statistical energy analysis subsystems." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245304.

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Lavalle, Juan Carlos. "Failure detection in transformers using vibrational analysis." Thesis, Massachusetts Institute of Technology, 1986. http://hdl.handle.net/1721.1/106705.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1986.
MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING
Bibliography: leaves 191-194.
by Juan Carlos Lavalle.
M.S.
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Hirai, Kazuo. "Time-energy analysis of molecular vibrational spectra /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/8518.

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Dosche, Carsten, Michael U. Kumke, F. Ariese, A. N. Bader, C. Gooijer, P. I. Dosa, S. Han, et al. "Shpol’skii spectroscopy and vibrational analysis of [N]phenylenes." Universität Potsdam, 2003. http://opus.kobv.de/ubp/volltexte/2007/1307/.

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Vibrationally resolved fluorescence spectra of four angular [N]phenylenes were recorded with laser excited Shpol’skii spectroscopy (LESS) in an n-octane matrix at 10 K. In general, the same vibrational frequencies were observed in the fluorescence excitation and emission spectra, indicating that the geometries of ground and electronically excited state are very similar. Because of intensity borrowing from the S2 state, vibrations of two different symmetries were observed in the fluorescence excitation spectra of angular [3]phenylene and zig-zag[5]phenylene. This finding allowed the location of the S2 state for these compounds. DFT calculations(RB3LYP/6-31G*) of the ground state vibrational frequencies were made. The calculated vibrational modes were in reasonably good agreement with the experimental data. A new very low-frequency vibration of approximately 100 cm-1 was predicted and experimentally confirmed for all [N]phenylenes investigated. This vibration seems to be unique for [N]phenylenes and is attributed to an in-plane movement of the carbon backbone.
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Farhat, Ali Y. "Vibrational analysis of composite double layer skeletal structures." Thesis, University of Surrey, 1992. http://epubs.surrey.ac.uk/624/.

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Tahmasian, Sevak. "Design, Analysis, and Optimization of Vibrational Control Strategies." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/52564.

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This dissertation presents novel vibrational control strategies for mechanical control-affine systems with high-frequency, high-amplitude inputs. Since these control systems use high-frequency, zero-mean, periodic inputs, averaging techniques are widely used in the analysis of their dynamics. By studying their time-averaged approximations, new properties of the averaged dynamics of this class of systems are revealed. Using these properties, the problem of input optimization of vibrational control systems was formulated and solved by transforming the problem to a constrained optimization one. Geometric control theory provides powerful tools for studying the control properties of control-affine systems. Using the concepts of vibrational and geometric controls and averaging tools, a closed-loop control strategy for trajectory tracking of a class of underactuated mechanical control-affine systems is developed. In the developed control law, the fact that for underactuated systems, the actuated coordinates together with the corresponding generalized velocities can be considered as generalized inputs for the unactuated dynamics plays the main role. Using the developed control method, both actuated and unactuated coordinates of the system are able to follow slowly time-varying prescribed trajectories on average. The developed control method is applied for altitude control of flapping wing micro-air vehicles by considering the sweeping (flapping) angle of the wings as the inputs. Using the feathering (pitch) angles of the wings as additional inputs, and using non-symmetric flapping, the control method is then extended for three-dimensional flight control of flapping wing micro-air vehicles.
Ph. D.
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Wood, Michael G. "Damage analysis of bridge structures using vibrational techniques." Thesis, Aston University, 1992. http://publications.aston.ac.uk/11832/.

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Much research is currently centred on the detection of damage in structures using vibrational data. The work presented here examined several areas of interest in support of a practical technique for identifying and locating damage within bridge structures using apparent changes in their vibrational response to known excitation. The proposed goals of such a technique included the need for the measurement system to be operated on site by a minimum number of staff and that the procedure should be as non-invasive to the bridge traffic-flow as possible. Initially the research investigated changes in the vibrational bending characteristics of two series of large-scale model bridge-beams in the laboratory and these included ordinary-reinforced and post-tensioned, prestressed designs. Each beam was progressively damaged at predetermined positions and its vibrational response to impact excitation was analysed. For the load-regime utilised the results suggested that the infuced damage manifested itself as a function of the span of a beam rather than a localised area. A power-law relating apparent damage with the applied loading and prestress levels was then proposed, together with a qualitative vibrational measure of structural damage. In parallel with the laboratory experiments a series of tests were undertaken at the sites of a number of highway bridges. The bridges selected had differing types of construction and geometric design including composite-concrete, concrete slab-and-beam, concrete-slab with supporting steel-troughing constructions together with regular-rectangular, skewed and heavily-skewed geometries. Initial investigations were made of the feasibility and reliability of various methods of structure excitation including traffic and impulse methods. It was found that localised impact using a sledge-hammer was ideal for the purposes of this work and that a cartridge `bolt-gun' could be used in some specific cases.
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Ding, Xinli. "Generalized critical points analysis of acetylene vibrational dynamics /." view abstract or download file of text, 2004. http://wwwlib.umi.com/cr/uoregon/fullcit?p3120621.

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Thesis (Ph. D.)--University of Oregon, 2004.
Typescript. Includes vita and abstract. Includes bibliographical references (leaves 145-154). Also available for download via the World Wide Web; free to University of Oregon users.
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Briscoe, Anthony Roy. "Asymmetric vibrational power transmission in fluid filled pipes." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241147.

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Books on the topic "Vibrational analysis"

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Zanyar, Movasaghi, and Rehman Shazza, eds. Vibrational spectroscopy for tissue analysis. Boca Raton: CRC Press, 2013.

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Geoffrey, Dent, and Royal Society of Chemistry (Great Britain). Information Services., eds. Industrial analysis with vibrational spectroscopy. Cambridge, UK: Royal Society of Chemistry, Information Services, 1997.

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Goldman, Steve. Vibration spectrum analysis: A practical approach. 2nd ed. New York: Industrial Press, 1999.

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Vibration spectrum analysis: A practical approach. New York, N.Y: Industrial Press Inc., 1991.

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Haris, P. I., and Feride Severcan. Vibrational spectroscopy in diagnosis and screening. Amsterdam: IOS Press, 2012.

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F, Maddams W., ed. The vibrational spectroscopy of polymers. Cambridge [Cambridgeshire]: Cambridge University Press, 1992.

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Griffiths, Peter R. Applications of vibrational spectroscopy in food science. Hoboken, N.J: Wiley, 2011.

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Surface enhanced vibrational spectroscopy. Hoboken, NJ: Wiley, 2006.

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Wood, Michael George. Damage analysis of bridge structures using vibrational techniques. Birmingham: Aston University. Department of Mechanical Engineering, 1992.

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Srinivasan, Gokulakrishnan. Vibrational spectroscopic imaging for biomedical applications. New York: McGraw-Hill, 2010.

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Book chapters on the topic "Vibrational analysis"

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Damnjanović, Milan, and Ivanka Milošsević. "Vibrational Analysis." In Line Groups in Physics, 95–111. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11172-3_7.

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Cepeda-Rizo, Juan, Jeremiah Gayle, and Joshua Ravich. "Vibrational Analysis Case Studies." In Thermal and Structural Electronic Packaging Analysis for Space and Extreme Environments, 197–225. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003247005-17.

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Keiderling, Timothy A. "Vibrational Circular Dichroism." In Circular Dichroism and the Conformational Analysis of Biomolecules, 555–98. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-2508-7_16.

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Ibach, H., and J. E. Müller. "Vibrational Analysis of Adsorbed Molecules." In Catalyst Characterization Science, 392–403. Washington, DC: American Chemical Society, 1985. http://dx.doi.org/10.1021/bk-1985-0288.ch034.

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Tashiro, Kohji. "Structure Analysis by Vibrational Spectroscopy." In Structural Science of Crystalline Polymers, 399–660. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-15-9562-2_5.

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Nihonyanagi, Satoshi, and Tahei Tahara. "Vibrational Sum Frequency Generation Spectroscopy." In Compendium of Surface and Interface Analysis, 801–7. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6156-1_127.

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Kishige, H., K. Teshima, and M. Nishida. "Shock Focusing Analysis with Vibrational Excitation." In Shock Waves @ Marseille IV, 93–98. Berlin, Heidelberg: Springer Berlin Heidelberg, 1995. http://dx.doi.org/10.1007/978-3-642-79532-9_14.

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Long, Frederick H. "Vibrational Spectroscopic Methods for Quantitative Analysis." In Handbook of Stability Testing in Pharmaceutical Development, 223–40. New York, NY: Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-85627-8_11.

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Gan, Buntara S. "Self-vibrational Analysis of a Tensegrity." In Lecture Notes in Mechanical Engineering, 87–99. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3239-6_7.

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Gamsjaeger, Sonja, Richard Mendelsohn, Klaus Klaushofer, and Eleftherios P. Paschalis. "Vibrational Spectroscopic Analysis of Hard Tissues." In Infrared and Raman Spectroscopic Imaging, 153–80. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527678136.ch4.

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Conference papers on the topic "Vibrational analysis"

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Abbott, Bartram S., and Charles L. Beckel. "Vibrational analysis of B4C." In Boron-rich solids. AIP, 1991. http://dx.doi.org/10.1063/1.40848.

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Farinazzo, Eduardo, Marcus Oliveira Filho, and Emilio Janssen. "Vibrational Analysis of Cracked Hooks." In 24th ABCM International Congress of Mechanical Engineering. ABCM, 2017. http://dx.doi.org/10.26678/abcm.cobem2017.cob17-0564.

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Lauzon, Robert G., and John T. DeWolf. "Nondestructive Evaluation with Vibrational Analysis." In A Collection of Expanded Papers on Nondestructive Testing from Structures Congress '93. Reston, VA: American Society of Civil Engineers, 1995. http://dx.doi.org/10.1061/9780784401316.002.

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Hughes, K. J., A. Hati, C. Nelson, and D. Howe. "Vibrational analysis of stabilized lasers." In 2012 IEEE International Frequency Control Symposium (FCS). IEEE, 2012. http://dx.doi.org/10.1109/fcs.2012.6243680.

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Duan, Shanzhong (Shawn), Lars Mattison, and Teresa Binkley. "Multibody Dynamics Model for Analysis of Human Body Response to Vibrations." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-86880.

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Some laboratory studies have showed that vibrational stimulation can enhance muscle strength and improve bone density, but it is not clearly understood how frequency and magnitude of vibration have effects on human muscles and bones. In this paper, a whole-body vibration case study is presented to help understand mechanism of human body responses to vibration intervention. A whole body vibration platform is used to provide a source of vibrational intervention. A person steps up and stands on the platform to experience whole-body vibration. Based on this whole-body vibration intervention case, a multibody biomechanical model is created to represent the human body and the WBV platform, and a sinusoidal force function is used to stand for vibrational input from the platform. Kane’s methods are used to derive equations of motion of this multibody biomechanical system. The model will be used to carry out computer simulation and to analyze how human body response to vibrations.
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Sadeghi, Reza, Firooz Bakhtiari-Nejad, and Taha Goudarzi. "Vibrational Analysis of Human Femur Bone." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85114.

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Femur bone is the longest and largest bone in the human skeleton. This bone connects the pelvic bone to the knee and carries most of the body weight. The static behavior of femur bone has been a center of investigation for many years while little attention has been given to its dynamic and vibrational behavior, which is of great importance in sports activities, car crashes and elderly falls. Investigation of natural frequencies and mode shapes of bone structures are important to understand the dynamic and vibrating behaviors. Vibrational analysis of femoral bones is presented using finite element method. In the analysis, the bone was modeled with isotropic and orthotropic mechanical properties. The effect of surrounding bone muscles has also been accounted for as a viscoelastic medium embedding the femur bone. Natural frequencies extracted considering the effects of age aggravated by weakening the elastic modulus and density loss. The effects of real complex bone geometry on natural frequencies are studied and are compared with a simple circular cross-sectional model.
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Krause, M., P. Kuran, and L. Dunsch. "A vibrational spectroscopic structure analysis of." In ELECTRONIC PROPERTIES OF NOVEL MATERIALS--SCIENCE AND TECHNOLOGY OF MOLECULAR NANOSTRUCTURES. ASCE, 1999. http://dx.doi.org/10.1063/1.59772.

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Revel, Gian M., Alessandro Scalise, and Lorenzo Scalise. "Vibrational analysis of tendons' mechanical properties." In Fifth International Conference on Vibration Measurements by Laser Techniques, edited by Enrico P. Tomasini. SPIE, 2002. http://dx.doi.org/10.1117/12.468157.

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Deiparine, Michael. "Vibrational Analysis of an Indoor APM." In Eighth International Conference on Automated People Movers. Reston, VA: American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40582(2001)81.

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Richardson, Daniel, Marley Kunzler, and Daniel Guildenbecher. "Hydrogen Femtosecond Vibrational CARS Thermometry in Solid Propellant Flames." In Laser Applications to Chemical, Security and Environmental Analysis. Washington, D.C.: OSA, 2018. http://dx.doi.org/10.1364/lacsea.2018.lm2c.6.

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Reports on the topic "Vibrational analysis"

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Moore, Craig D., Todd Johnson, Mike Martens, Mike Syphers, E. McCrory, Mike McGee, Rob Reilly, and /Fermilab. C0 Vibrational analysis. Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/15017293.

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Moore, Craig D. Vibrational analysis of tevatron quadrupoles. Office of Scientific and Technical Information (OSTI), January 1996. http://dx.doi.org/10.2172/1131107.

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3

Krupenin, Vitaly. TO THE ANALYSIS OF VIBRATIONAL CONDUCTING SYSTEMS WITH INCLUSIVE SHOCK VARIATIONS. Bulletin of Science and Technical Development, 2018. http://dx.doi.org/10.18411/vntr2018-125-2.

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Korzeniewski, C., B. S. Pons, P. P. Schmidt, and M. W. Severson. An analysis of the Vibrational Spectrum of Carbon Monoxide on Platinum Metal Electrodes. Fort Belvoir, VA: Defense Technical Information Center, October 1986. http://dx.doi.org/10.21236/ada173366.

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Scapinello, Mattia, Enrico Girlanda, and Nicola Petrone. Vibrational analysis of a flexible bicycle stem during indoor in-vivo cycling on a two rollers servohydraulic test bench. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317533.

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Herbert, John M. Symbolic derivation of high-order Rayleigh-Schroedinger perturbation energies using computer algebra: Application to vibrational-rotational analysis of diatomic molecules. Office of Scientific and Technical Information (OSTI), January 1997. http://dx.doi.org/10.2172/491448.

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Rahman, Shahedur, Rodrigo Salgado, Monica Prezzi, and Peter J. Becker. Improvement of Stiffness and Strength of Backfill Soils Through Optimization of Compaction Procedures and Specifications. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317134.

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Abstract:
Vibration compaction is the most effective way of compacting coarse-grained materials. The effects of vibration frequency and amplitude on the compaction density of different backfill materials commonly used by INDOT (No. 4 natural sand, No. 24 stone sand, and No. 5, No. 8, No. 43 aggregates) were studied in this research. The test materials were characterized based on the particle sizes and morphology parameters using digital image analysis technique. Small-scale laboratory compaction tests were carried out with variable frequency and amplitude of vibrations using vibratory hammer and vibratory table. The results show an increase in density with the increase in amplitude and frequency of vibration. However, the increase in density with the increase in amplitude of vibration is more pronounced for the coarse aggregates than for the sands. A comparison of the maximum dry densities of different test materials shows that the dry densities obtained after compaction using the vibratory hammer are greater than those obtained after compaction using the vibratory table when both tools were used at the highest amplitude and frequency of vibration available. Large-scale vibratory roller compaction tests were performed in the field for No. 30 backfill soil to observe the effect of vibration frequency and number of passes on the compaction density. Accelerometer sensors were attached to the roller drum (Caterpillar, model CS56B) to measure the frequency of vibration for the two different vibration settings available to the roller. For this roller and soil tested, the results show that the higher vibration setting is more effective. Direct shear tests and direct interface shear tests were performed to study the impact of particle characteristics of the coarse-grained backfill materials on interface shear resistance. The more angular the particles, the greater the shear resistance measured in the direct shear tests. A unique relationship was found between the normalized surface roughness and the ratio of critical-state interface friction angle between sand-gravel mixture with steel to the internal critical-state friction angle of the sand-gravel mixture.
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Fries, Joseph C. Black Hawk Helicopter Vibration Analysis Due to Main Rotor Damage, Directional Constituents of the Resultant Vibrations. Fort Belvoir, VA: Defense Technical Information Center, March 2001. http://dx.doi.org/10.21236/ada394672.

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9

Koo, Ja-Suk, Jae-Seock Choi, and Tae-Ryong Jeon. Vibration Fatigue Analysis of Automotive Bracket. Warrendale, PA: SAE International, May 2005. http://dx.doi.org/10.4271/2005-08-0200.

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Muniyasamy, K., R. Govindarajan, N. Jayaram, and Ravi Kharul. Vibration Fatigue Analysis of Motorcycle Front Fender. Warrendale, PA: SAE International, October 2005. http://dx.doi.org/10.4271/2005-32-0030.

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