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Relevant bibliographies by topics / Transient vibration

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Academic literature on the topic 'Transient vibration'

Author: Grafiati

Published: 4 June 2021

Last updated: 29 January 2023

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Journal articles on the topic "Transient vibration"

1

Zhao, H., F. K. Choy, and M. J. Braun. "Transient and Steady State Vibration Analysis of a Wavy Thrust Bearing." Journal of Tribology 128, no. 1 (2005): 139–45. http://dx.doi.org/10.1115/1.2033900.

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This paper describes a numerical procedure for analyzing the dynamics of transient and steady state vibrations in a wavy thrust bearing. The major effects of the wavy geometry and the operating parameters on the dynamic characteristics of the bearing had been discussed in a previous paper; the present paper thus concentrates on examining the relationships between the development of the transient and steady state vibrations when operating conditions are parametrically varied. Special attention is given to the development of steady state vibrations from initial transients with comparisons and consequences to the overall system stability. Numerical based vibration signature analysis procedures are then used to identify and quantify the transient vibrations. The conclusions provide general indicators for designing wavy thrust bearings that are less susceptible to transients induced by external perturbations.

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Hine, M. "Transient Synthesis Using a Fourier Transform Envelope: An Alternative to Swept-Sine Vibration Testing." Journal of the IEST 39, no. 5 (1996): 17–22. http://dx.doi.org/10.17764/jiet.2.39.5.y736q45216l175r6.

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Transient vibration test offer an alternative to the conventional swept-sine vibration test, with controllable conservatism. A method of deriving a single vibration test transient from several spacecraft flight transients is described. These transients were from different physical locations on the spacecraft. The test transient was derived by taking the inverse Fourier transform of an envelope of the Fourier transforms of the flight transients. The inverse transformation was performed using the real and imaginary parts of that Fourier transform forming the envelope amplitude at each frequency. The test transient therefore has the same frequency content and maximum amplitudes as the flight transients. A generic test transient was therefore produced that duplicates many operating conditions at separate physical locations. It could be applied to many different structural components of a spacecraft, simplifying a vibration test program. The transient vibration test produces significantly less overtest than a conventional swept-sine vibration test.

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Felszeghy, Stephen F. "Steady-State Residual Vibrations in High-Speed, Dwell-Type, Rotating Disk Cam-Follower Systems." Journal of Vibration and Acoustics 127, no. 1 (2005): 12–17. http://dx.doi.org/10.1115/1.1855928.

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Followers driven by high-speed, dwell-type, rotating disk cams can exhibit undesirable residual vibrations during dwell. These vibrations have been studied with linear models mostly using results from transient vibration analysis, assuming quiescent initial conditions. Here, the residual vibrations are studied with closed-form solutions to the steady-state vibrations obtained with a circular convolution integral. The steady-state vibrations, which can extend over the entire cam cycle, are periodic and continuous. It is shown that significant differences exist between the residual vibration results obtained from steady-state analysis and those obtained from transient analysis. The undamped steady-state vibrations exhibit resonances. Away from the resonance conditions, the steady-state residual vibration amplitudes are consistently smaller than those predicted by transient analysis. The results from the two approaches agree quantitatively only for relatively stiff and damped follower systems.

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Feliks, Jacek, Paweł Tomach, Dariusz Foszcz, Tomasz Gawenda, and Tomasz Olejnik. "Research on the New Drive of a Laboratory Screen with Rectilinear Vibrations in Transient States." Energies 14, no. 24 (2021): 8444. http://dx.doi.org/10.3390/en14248444.

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The paper presents the results of research on the vibrating motion of a laboratory screen with a rectilinear (segmental) trajectory of vibrations during its start-up and braking. The investigations were carried out on a modernized stand equipped with a system of two vibrating motors applied in newer solutions of industrial screens, which are mounted directly on the riddle. The tests were carried out for three different frequencies using three-axis acceleration sensors. The analysed parameter was the increase in the amplitude of vibrations in transient states compared to the amplitude during the stable operation of the device. The maximum multiplication of the vibration amplitude of the classic drive system during start-up was 9.7 (mm/mm) in the vertical direction and 5.7 (mm/mm) for the new system. During braking, the maximum multiplication of the vibration amplitude of the classic drive system was 6.9 (mm/mm) vertically, while for the drive system with vibration motors, it was 11.4 (mm/mm). The absence of flexible couplings in the drive system reduces the damping of vibrations and increases the value of amplitude during the start-up and free braking of the machine. This does not have a major influence on the correct operation of the machine in a steady state. However, the use of the new drive system resulted in a significant reduction in power demand and shortened the start-up time, which has a positive effect on the operating costs of the machine.

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Cieplok, Grzegorz. "Estimation of the resonance amplitude in machines with inertia vibrator in the coast-down phase." Mechanics & Industry 19, no. 1 (2018): 102. http://dx.doi.org/10.1051/meca/2017035.

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The work concerns mechanical systems with transient resonance formed as a result of an unbalanced rotating mass passing through an area of the system's natural frequency. In particular, this concerns over-resonant vibrating machines driven by inertia vibrators, which during start-up and coast-down pass through the natural frequency area related to the vibrating mass – flexible suspension system. The work analyses a system consisting of a soft-mounted machine body excited into vibrations by means of the inertia vibrator in order to designate the amplitude of resonant vibration, taking into consideration strong coupling between movements of the body and vibrator. The research results are presented in the form of nomograms and approximation formulas expressed in terms of relative parameters. The results of the theoretical research were verified on the laboratory model and industrial machines.

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Keogh, P. S., M. O. T. Cole, and C. R. Burrows. "Multi-State Transient Rotor Vibration Control Using Sampled Harmonics." Journal of Vibration and Acoustics 124, no. 2 (2002): 186–97. http://dx.doi.org/10.1115/1.1448321.

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A technique is introduced to achieve transient vibration attenuation in a multi-input, multi-output flexible rotor/magnetic bearing system. The strategy employs feedback control of measured harmonic components of rotor vibration. Whereas previous harmonic controllers have been based only on steady state vibration characteristics, the new controller also incorporates the transient dynamics. The controller may still be designed from measured data and is determined from target transient vibrational responses arising from step changes in particular disturbances. Account is taken of delays arising from evaluation of harmonic components. Furthermore, stability boundaries for the controller are shown to have significant tolerance to measurement error. The controller is validated experimentally in a flexible rotor/magnetic bearing system and mass loss tests are used to demonstrate rapid decrease in vibration levels with near elimination of transient overshoot.

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Tapper, Elliot B., and Nezam H. Afdhal. "Vibration-controlled transient elastography." Current Opinion in Gastroenterology 31, no. 3 (2015): 192–98. http://dx.doi.org/10.1097/mog.0000000000000169.

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Dohnal, F. "Experimental studies on damping by parametric excitation using electromagnets." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 226, no. 8 (2012): 2015–27. http://dx.doi.org/10.1177/0954406212439515.

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Transient vibrations in mechanical systems are a common problem in engineering. Several theoretical studies have shown analytically and numerically that a vibrating system can be stabilised or its vibrations can be reduced when excited close to a specific parametric combination resonance frequency. At this operation, the transient vibrations are effectively damped by parametric excitation. The basic step in exploiting this method is its experimental implementation in mechanical systems. In this review, recent experiments are discussed for a simple chain mass system, a continuous cantilever and a flexible rotor system. The parametric excitation is realised by electromagnetic variable-stiffness actuators driven by a periodic open-loop control. It is demonstrated experimentally that a parametrically excited structure can exhibit enhanced damping properties. A certain level of the excitation amplitude has to be exceeded to achieve the damping effect in which the existing damping in the system is artificially amplified. Upon exceeding this value, the additional artificial damping provided to the system is significant and most effective for vibration suppression of the lower vibration modes.

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Zhang, Jianjun, Qibo Ni, Jing Wang, and Feng Guo. "Transient thermal elastohydrodynamic lubrication of point contacts subjected to normal vibration." Industrial Lubrication and Tribology 68, no. 5 (2016): 536–47. http://dx.doi.org/10.1108/ilt-06-2015-0085.

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Purpose Vibration exists widely in all machineries working under high speed. The unpredictability of vibration and the change of the relative surface speed may result in difficulties in the elastohydrodynamic lubrication (EHL) analysis. By far, few studies on EHL relating to vibration have been published. The purpose of the present study is to investigate the effect of the vertical vibrations and the influence of temperature on the thermal EHL contacts. Design/methodology/approach The lubricant was assumed to be Newtonian fluid. The time-dependent numerical solutions were achieved instant after instant in each period of the vibration. At each instant, the pressure field was solved with a multi-level technique, the surface deformation was solved with a multi-level multi-integration method and the temperature filed was solved with a finite different scheme through a sweeping progress. The periodic error was checked at each end of the vibration period until the responses of pressure, film thickness and temperature were all periodic functions with the frequency of the roller’s vibrations. Findings The results reveal that normal vibration produces little drastic change of pressure, film thickness and temperature in EHL. Under some conditions, the vibrations of the roller can produce transient dimples within the contact conjunction. It is also showed that the lubrication in the same sliding is better than the opposite sliding. Research limitations/implications For the unpredictability of vibration, it is not easy to do the experiment to realize a real comparison with numerical results. The reach does not show any verification and consider the effect of non-Newtonian fluid. Originality/value The effect of the vertical vibrations on the thermal EHL point contact hast been studied. The effects of both the amplitude and the frequency on the predicted load-carrying capacity, minimum film thickness, center pressure and center temperature and the coefficient of friction were investigated. The role of the thermal effect was given.

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SHEVTSOVA, VALENTINA, ILYA I. RYZHKOV, DENIS E. MELNIKOV, YURI A. GAPONENKO, and ALIAKSANDR MIALDUN. "Experimental and theoretical study of vibration-induced thermal convection in low gravity." Journal of Fluid Mechanics 648 (April 7, 2010): 53–82. http://dx.doi.org/10.1017/s0022112009993442.

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Vibrations acting on a fluid with density gradient induced by temperature variations can cause relative flows. High-frequency vibration leads to the appearance of time-averaged (mean) flows (or streaming flows), which can essentially affect heat and mass transfer processes. This phenomenon is most pronounced in the absence of other external forces (in particular, static gravity). In this work, an extensive experimental and computational study of thermal vibrational convection in a reduced-gravity environment of a parabolic flight is performed. The transient evolution of the temperature field in a cubic cell subjected to translational vibration is investigated by optical digital interferometry. The mean flow structures previously reported in numerical studies are confirmed. The transition from four-vortex flow to a pattern with a large diagonal vortex and two small vortices is observed in the transient state. The experiments reveal a significant enhancement of heat transfer by vibrational mean flows with increasing the vibrational strength. Three-dimensional direct numerical simulation with real microgravity profile and two-dimensional numerical modelling based on averaging approach provide a very good agreement with the experimental results. The influence of residual gravity on heat transfer and bifurcation scenario is first investigated numerically and correlated with the experimental data. It is demonstrated that gravity effects on non-uniformly heated fluids can be reproduced in weightlessness by applying vibrations to the system.

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Dissertations / Theses on the topic "Transient vibration"

1

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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Queen, Bruce Leon. "Methods to reduce transient floor vibrations." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-03172010-020557/.

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Byun, Chansup. "Free vibration and nonlinear transient analysis of imperfect laminated structures." Diss., This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-07282008-135342/.

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Chen, Zhidong. "Machine condition monitoring based on the analysis of transient vibration signals." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/NQ58400.pdf.

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Robinson, Matthew. "Prediction of sound and vibration response using transient statistical energy analysis." Thesis, University of Liverpool, 2012. http://livrepository.liverpool.ac.uk/5493/.

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Transient sounds generated from structure-borne and airborne excitation are very common in buildings and cause the majority of disturbances in dwellings. The maximum sound pressure level corresponds well with annoyance and disturbance and current guidelines use this descriptor to describe the threshold for sleep disturbance. Hence this thesis addresses a need for methods to quantify transient sound sources and prediction models that can determine maximum sound pressure levels due to these sound sources. Statistical Energy Analysis (SEA) provides a framework that describes sound radiation and structure-borne sound transmission in buildings. SEA is used in this thesis as a basis on which to develop Transient Statistical Energy Analysis (TSEA) for building acoustics. The TSEA power balance describes energy exchange between subsystems in the time domain and is controlled by the time interval. Limits for the time interval are proposed based upon energy decay and path statistics of the source subsystem. New methods are proposed for measuring and quantifying the transient power input from airborne and structure-borne excitation. Detailed analysis is also used to quantify the signal processing errors, due the time-weighted level detector and filters, associated with the measurement of maximum levels. The use of steady-state SEA coupling loss factors in TSEA for sound radiation and structure-borne sound transmission is validated through good agreement in comparisons of measurements and predictions of maximum sound and vibration levels. This validation is extended to complex transient sources that have been incorporated into TSEA, such as the ISO rubber ball, transients overlaying stationary noise and airborne transients. Case studies of heavyweight buildings show that accurate predictions of maximum sound pressure and vibration levels are given if Ns ≥ 1 and Mav ≥ 0.5. TSEA has also been validated for the prediction of structural decay curves, numerical experiments have been carried out to quantify the error in the estimation of the total loss factor and to develop an improvement to the evaluation of decay curves.

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Jetann, Charles Anthony. "Development of the response coefficient-root function method for the transient vibration serviceability design of flat concrete floors." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/41565/1/Charles_Jetann_Thesis.pdf.

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The vibration serviceability limit state is an important design consideration for two-way, suspended concrete floors that is not always well understood by many practicing structural engineers. Although the field of floor vibration has been extensively developed, at present there are no convenient design tools that deal with this problem. Results from this research have enabled the development of a much-needed, new method for assessing the vibration serviceability of flat, suspended concrete floors in buildings. This new method has been named, the Response Coefficient-Root Function (RCRF) method. Full-scale, laboratory tests have been conducted on a post-tensioned floor specimen at Queensland University of Technology’s structural laboratory. Special support brackets were fabricated to perform as frictionless, pinned connections at the corners of the specimen. A series of static and dynamic tests were performed in the laboratory to obtain basic material and dynamic properties of the specimen. Finite-element-models have been calibrated against data collected from laboratory experiments. Computational finite-element-analysis has been extended to investigate a variety of floor configurations. Field measurements of floors in existing buildings are in good agreement with computational studies. Results from this parametric investigation have led to the development of new approach for predicting the design frequencies and accelerations of flat, concrete floor structures. The RCRF method is convenient tool to assist structural engineers in the design for the vibration serviceability limit-state of in-situ concrete floor systems.

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Li, Laihang. "Transient Vibration Amplification in Nonlinear Torsional Systems with Application to Vehicle Powertrain." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1385369839.

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Cheng, Yukun. "Study on efficient piezoelectric energy harvesting with frequency self-tuning." ASME 2015 International Mechanical Engineering Congress and Exposition, 2015. http://hdl.handle.net/1993/31645.

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A frequency self-tuning energy harvesting methodology is proposed to achieve efficient energy harvesting. To simulate the self-tuning process, a theoretical model of the harvester made of an aluminum beam bonded with piezoelectric patches is developed for numerical simulation. The energy harvesting is realized by converting ambient vibration to electric charge through piezoelectric patches on the host beam. To accomplish the frequency self-tuning process, a control voltage is applied on a piezoelectric stack actuator to tune the natural frequency of the beam harvester matching the major excitation frequency of the ambient vibration with large power generation. Two tuning methods with different electric circuits are developed to find the efficient and feasible self-tuning process, which is then further verified by the finite element method. Research findings show that the optimal frequency self-tuning method significantly increases the power output from the harvester by more than 26 times compared with the one without tuning.<br>October 2016

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9

Mu, Cheng. "Robust active vibration control of flexible rotor-bearing systems under steady and transient conditions." Thesis, University of Bath, 1994. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387119.

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Mohd, Yusoff Sabariah. "Clustering classification and human perception of automative steering wheel transient vibrations." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/15849.

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In the 21st century, the proliferation of steer-by-wire systems has become a central issue in the automobile industry. With such systems there is often an objective to minimise vibrations on the steering wheel to increase driver comfort. Nevertheless, steering wheel vibration is also recognised as an important medium that assists drivers in judging the vehicle's subsystems dynamics as well as to indicate important information such as the presence of danger. This has led to studies of the possible role of vibrational stimuli towards informing drivers of environment conditions such as road surface types. Numerous prior studies were done to identify how characteristics of steering wheel vibrational stimuli might influence driver road surface detection which suggested that there is no single, optimal, acceleration gain that could improve the detection of all road surface types. There is currently a lack of studies on the characteristics of transient vibrations of steering wheel as appear to be an important source of information to the driver road surface detection. Therefore, this study is design to identify the similarity characteristics of transient vibrations for answering the main research question: "What are the time-domain features of transient vibrations that can optimise driver road surface detection?" This study starts by critically reviewing the existing principles of transient vibrations detection to ensure that the identified transient vibrations from original steering wheel vibrations satisfy with the definition of transient vibrations. The study continues by performing the experimental activities to identify the optimal measurement signal for both identification process of transient vibrations and driver road surface detection without taking for granted the basic measurement of signal processing. The studies then identify the similarity of transient vibrations according to their time-domain features. The studies done by performing the high-dimensional reduction techniques associated with clustering methods. Result suggests that the time-domain features of transient vibrations that can optimise driver road surface detection were found to consist of duration (Δt), amplitude (m/s2), energy (r.m.s) and Kurtosis.

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Books on the topic "Transient vibration"

1

Wilcoski, James. The CERL equipment fragility and protection procedure (CEFAPP): Experimental definition of equipment vulnerability to transient support motions. US Army Corps of Engineers, Construction Engineering Research Laboratories, 1997.

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2

Fleming, David P. Transient vibration prediction for rotors on ball bearings using load-dependent non-linear bearing stiffness. National Aeronautics and Space Administration, Glenn Research Center, 2002.

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3

J, Braun M., American Society of Mechanical Engineers. Winter Meeting, and American Society of Mechanical Engineers. Fluids Engineering Division., eds. Second International Multiphase Fluid Transient Symposium: Presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, San Francisco, California, December 10-15, 1989. ASME, 1989.

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International, Multiphase Fluid Transients Symposium (2nd 1989 San Francisco Calif ). Second International Multiphase Fluid Transient Symposium: Presented at the Winter Annual Meeting of the American Society of Mechanical Engineers, San Francisco, California, December 10-15, 1989. The Society, 1989.

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5

United States. Federal Transit Administration. Office of Planning and Environment. Transit noise and vibration impact assessment. U.S. Department of Transportation, Federal Transit Administration, Office of Planning and Environment, 2006.

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6

Brebbia, Carlos A. Time-dependent and Vibration Problems. Springer Berlin Heidelberg, 1985.

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Jacox, Marilyn E. Vibrational and electronic energy levels of polyatomic transient molecules. American Chemical Society and the American Institute of Physics for the National Institute of Standards and Technology, 1994.

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Authority, San Francisco County Transportation. Doyle Drive: South access to the Golden Gate Bridge : final noise and vibration study. San Francisco County Transportation Authority, 2004.

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9

executive, Health and safety. Transient Vibration Guidelines for Fast Acting Valves Screening Assessment. Health and Safety Executive (HSE), 2002.

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Mehl, Jonathan David. Finite element modelling of the transient response of viscoelastically damped structures. 1995.

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Book chapters on the topic "Transient vibration"

1

Thomson, William T. "Transient Vibration." In Theory of Vibration with Applications. Springer US, 1993. http://dx.doi.org/10.1007/978-1-4899-6872-2_5.

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Mansur, W. J., and C. A. Brebbia. "Transient Elastodynamics." In Time-dependent and Vibration Problems. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-662-29651-6_5.

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Mansur, W. J., and C. A. Brebbia. "Transient Elastodynamics." In Time-dependent and Vibration Problems. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82398-5_5.

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Karnovsky, Igor A., and Evgeniy Lebed. "Active and Parametric Vibration Protection of Transient Vibrations." In Theory of Vibration Protection. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28020-2_13.

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Mansur, W. J., and C. A. Brebbia. "Further Developments on the Solution of the Transient Scalar Wave Equation." In Time-dependent and Vibration Problems. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-662-29651-6_4.

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Mansur, W. J., and C. A. Brebbia. "Further Developments on the Solution of the Transient Scalar Wave Equation." In Time-dependent and Vibration Problems. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82398-5_4.

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Sandrin, Laurent. "Liver Stiffness Measurement Using Vibration-Controlled Transient Elastography." In Liver Elastography. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-40542-7_3.

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Ross, C. T. F., T. Johns, and Emile. "Vibration of Ring-Stiffened Cones Submerged in Water." In Transient/Dynamic Analysis and Constitutive Laws for Engineering Materials. Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3655-3_18.

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Makovička, Daniel, and Daniel Makovička. "Response Analysis of Building Loaded by Groundborne Transient Vibration." In III European Conference on Computational Mechanics. Springer Netherlands, 2006. http://dx.doi.org/10.1007/1-4020-5370-3_748.

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Zhang, Xinquan, A. Senthil Kumar, and Mustafizur Rahman. "Effects of Cutting and Vibration Parameters on Transient Cutting Force in Elliptical Vibration Cutting." In Communications in Computer and Information Science. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-35197-6_54.

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Conference papers on the topic "Transient vibration"

1

Hu, Yu-Kan, Sanjay Mahajan, and Kevin Zhang. "Brake Squeal DOE Using Nonlinear Transient Analysis." In Noise & Vibration Conference & Exposition. SAE International, 1999. http://dx.doi.org/10.4271/1999-01-1737.

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Zhao, Hongmei, F. K. Choy, and M. J. Braun. "Transient and Steady State Vibration Analysis of a Wavy Thrust Bearing." In ASME/STLE 2004 International Joint Tribology Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/trib2004-64144.

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This paper describes a numerical procedure for analyzing the dynamics of transient and steady state vibrations in a wavy thrust bearing. The major effects of the wavy geometry and the operating parameters on the dynamic characteristics of the bearing had been discussed in previous work. The present study thus concentrates on examining the relationships between the development of the transient and steady state vibrations when operating conditions including rotational speed and load magnitude are parametrically varied. Special attention is given to the development of steady state vibrations from initial transients with comparisons and consequences to the overall system stability. Numerical based vibration signature analysis procedures are then used to identify and quantify the transient vibrations. The conclusions provide general indicators for designing wavy thrust bearings that are less susceptible to transients induced by external perturbations.

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3

Ronacher, Arno Wilhelm, Mushtaq Hussain, Werner Biermayer, and Wolfgang Stücklschwaiger. "Evaluating Vehicle Interior Noise Quality Under Transient Driving Conditions." In Noise & Vibration Conference & Exposition. SAE International, 1999. http://dx.doi.org/10.4271/1999-01-1683.

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Kojima, Naoya, Jian Yu Chang, and Yasutomo Fujimura. "The Measurement of Transient Vibration Intensity Using Three Channel Method." In Noise & Vibration Conference & Exposition. SAE International, 1993. http://dx.doi.org/10.4271/931273.

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Owrutsky, Jeffrey C., Andrea B. Grafton, Adam D. Dunkelberger, Blake S. Simpkins, and Elizabeth S. Ryland. "Transient studies of vibration-cavity polaritons." In Physical Chemistry of Semiconductor Materials and Interfaces XX, edited by Daniel Congreve, Christian Nielsen, Andrew J. Musser, and Derya Baran. SPIE, 2021. http://dx.doi.org/10.1117/12.2594303.

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Kang, Min Kyoo, Jin Hong Kim, HyuckJin Oh, Wookjin Jang, Sangwoo Lee, and Young Hwan Lee. "Transient Nonlinear Full-Vehicle Vibration Analysis." In WCX™ 17: SAE World Congress Experience. SAE International, 2017. http://dx.doi.org/10.4271/2017-01-1553.

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Bremner, Paul, Scott Clifton, and Chris Todter. "A Transient SEA Model for Transmission of Non-Stationary Wind Noise." In Noise and Vibration Conference & Exhibition. SAE International, 2019. http://dx.doi.org/10.4271/2019-01-1473.

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Dhaenens, Marcel, Gijs Van Der Linden, Jakob Nehl, and Rainer Thiele. "Analysis of Transient Noise Behavior of a Truck Diesel Engine." In SAE 2001 Noise & Vibration Conference & Exposition. SAE International, 2001. http://dx.doi.org/10.4271/2001-01-1566.

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Parbat, Aniket, and Anil Charan. "Development and Application of an Objective Metric for Transient Engine Clatter Noise." In Noise and Vibration Conference & Exhibition. SAE International, 2019. http://dx.doi.org/10.4271/2019-01-1519.

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Scholl, David, and Scott Amman. "A New Wavelet Technique for Transient Sound Visualization and Application to Automotive Door Closing Events." In Noise & Vibration Conference & Exposition. SAE International, 1999. http://dx.doi.org/10.4271/1999-01-1682.

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Reports on the topic "Transient vibration"

1

Ratcliffe, Colin P. Correcting a Significant and Consistent Error in the Modal Damping Obtained using Transient Vibration Data. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada359146.

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Tadjbakhsh, Iradj G. Dynamic Instability and Transient Vibrations in Gas-Propelled Guns. Defense Technical Information Center, 1992. http://dx.doi.org/10.21236/ada248443.

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Douberly, Gary Elliott. Final Technical Report: Vibrational Spectroscopy of Transient Combustion Intermediates Trapped in Helium Nanodroplets. Office of Scientific and Technical Information (OSTI), 2017. http://dx.doi.org/10.2172/1409044.

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Cinar, A. Vibrational control of chemical reactors: Selectivity enhancement, stabilization and improvement of transient behavior. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6532352.

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VIBRO-ACOUSTICAL PERFORMANCE OF A STEEL BEAM OF GROOVE PROFILE: FIELD TEST AND NUMERICAL ANALYSIS. The Hong Kong Institute of Steel Construction, 2022. http://dx.doi.org/10.18057/icass2020.p.063.

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Abstract:

To meet the development needs of rail transit, steel beams are more widely used in bridges, which brings more significant vibration and noise problems. In this paper, the dynamic characteristics of a steel beam of groove profile are investigated through field test and numerical analysis. Firstly, under the hammering excitation, the vibration response of the slabs in a descending order are right web, left web and bottom slab. The vibration response is related to the distance from the response position to the excitation source and the stiffness of slabs. Then, a numerical model of the steel beam is established based on the hybrid FE-SEA method. The results of field test are consistent with the numerical simulation, which confirms the effectiveness of the hybrid FE-SEA method when analyzing the steel beam. Finally, by comparing the sound power level radiated from different slabs in three zones, it can be concluded that the sound power level is related to the distance from the test position to the excitation source. The overall sound power level will increase when canceling transverse connection system, and center excitation has a more significant effect than off-center excitation.

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