Academic literature on the topic 'Sine sweep vibration'

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Journal articles on the topic "Sine sweep vibration"

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Hine, M. "Swept Sine Vibration Test Conservatism." Journal of the IEST 38, no. 6 (1995): 13–17. http://dx.doi.org/10.17764/jiet.2.38.6.kt3t17530875g171.

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The excessive overtest associated with the swept sine vibration test method was measured quantitatively using the index of conservatism and the associated overtest factor for a dynamic mass model of a typical spacecraft component. The response to a fixed amplitude sine sweep test was compared with the flight transient vibration environment for sweep rates of 2, 4, and 6 octaves/min and 300 Hz/min. A response-limited test was also conducted at 6 octaves/min. The conservatism was measured using several characterizations; namely: number of peaks exceeding, ranked peaks, shock response spectrum, s
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Li, Xiao Lin, and Xia Yan. "Simulation of Sinusoidal Vibration Control Algorithm Based on Hydraulic Vibration Table." Advanced Materials Research 1016 (August 2014): 198–203. http://dx.doi.org/10.4028/www.scientific.net/amr.1016.198.

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In this paper, the model of hydraulic vibration system is established and sinusoidal vibration control algorithm is discussed and studied. A sinusoidal control hydraulic vibration system is designed. By simulation, this system has good frequency response characteristic and sine sweep control function.
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Oh, Chang Jun, Hee Nam Choi, and Bong Soo Kang. "Vibration Control of an Electromagnetic Shaker by Sweep Sine Signal." Transactions of the Korean Society of Mechanical Engineers - A 42, no. 7 (2018): 687–92. http://dx.doi.org/10.3795/ksme-a.2018.42.7.687.

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Kos, Vanja Pahor, Janko Slavič, and Miha Boltežar. "Fatigue Damage for Sweep-Sine and Random Accelerated Vibration Testing." Advances in Mechanical Engineering 7, no. 2 (2014): 340545. http://dx.doi.org/10.1155/2014/340545.

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Dossogne, T., L. Masset, B. Peeters, and J. P. Noël. "Nonlinear dynamic model upgrading and updating using sine-sweep vibration data." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 475, no. 2229 (2019): 20190166. http://dx.doi.org/10.1098/rspa.2019.0166.

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Dynamic modelling is a core activity in mechanical engineering towards supporting system and control design. It is typically carried out in a computational environment, involving idealizing assumptions of diverse kinds. The most notable assumption commonly adopted in the field is the excitation-to-response linearity of the mechanical vibrations. This common practice contrasts with the day-to-day experience of test engineers, who are ever more confronted with nonlinearities when dynamically testing modern mechanical structures. A nonlinear behaviour may result from various physical mechanisms,
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Yan, Hui, Liang Chen, Hong Rui Ao, and Hong Yuan Jiang. "The Experimental Research of Vibration Isolation Performance of MR Isolator at High Temperature." Applied Mechanics and Materials 184-185 (June 2012): 525–28. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.525.

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Transmissibility is the main performance evaluation index of Metal Rubber (MR) isolator, which can be got by sine sweep frequency test. At different temperature, the sine sweep frequency test is done with different structural parameter MR isolator. The influence that relative density and pre-deformation have on transmissibility and natural frequency when temperature changed is analyzed. The changing regularity of MR isolator’s transmissibility at different temperature is explored. Research results provide the basis for designing MR isolator.
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Chai, Shao Feng, Ping Wang, Zhi Jian Wu, Jun Wang, and Gao Feng Che. "Acceleration Data Acquisition and Analysis Method of Shaking Table Test." Applied Mechanics and Materials 724 (January 2015): 205–12. http://dx.doi.org/10.4028/www.scientific.net/amm.724.205.

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Shaking table test is an important means of simulated earthquake in laboratory, slope shaking table test data provide a scientific basis for analysis of dynamic stability and instability mechanism of slopes. Sine vibration table test data processing is different from general frequency domain analysis method, need real-time data processing in time domain. Taking the sine sweep test conditions, which is one of the conditions in "Earthquake landslide and slope prevention and control technology research on shaking table test", as an example. Describes the layout of sensors in shaking table test an
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Napolitano, Kevin. "METHODS AND APPARATUS FOR VIBRATION TESTING USING MULTIPLE SINE SWEEP EXCITATION." Journal of the Acoustical Society of America 133, no. 4 (2013): 2514. http://dx.doi.org/10.1121/1.4800119.

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Palmieri, M., F. Cianetti, G. Zucca, G. Morettini, and C. Braccesi. "Spectral analysis of sine-sweep vibration: A fatigue damage estimation method." Mechanical Systems and Signal Processing 157 (August 2021): 107698. http://dx.doi.org/10.1016/j.ymssp.2021.107698.

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Chen, Tao, and Da Wei Zhang. "Development of Vibration Excitation and Control System for High Frequency Application." Applied Mechanics and Materials 246-247 (December 2012): 1283–88. http://dx.doi.org/10.4028/www.scientific.net/amm.246-247.1283.

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A complete system of vibration excitation with force feedback control for piezoelectric inertial exciter is presented. The vibration exciter is constructed and its dynamic model is established composed by piezoelectric stack, inertial mass and pretension institutions based on principle of inertia and reaction. The control system takes software program as the core part. The workflow of the digital step sine sweep control software for exciting force limit is recounted. Variety techniques are utilized to ensure real time and stability in the control process, including synchronization output and a
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Dissertations / Theses on the topic "Sine sweep vibration"

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Senturk, Sabri. "Experimental Determination Of Transfer Functions For A Car Body-in-white." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12604899/index.pdf.

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Vibration generated from various sources (engine, road surface, tires, exhaust, etc.) should be considered in the design of a car body. These vibrations travel through transfer systems (drivetrain, suspension, body, etc.) to the steering wheel, seats and other areas where it is detected by the passengers of the vehicle. Transmission routes must be studied and efforts made to keep transfer systems from amplifying vibration and to absorb it instead. Since the superior vibration transfer system is the car body, finite element analysis and experimental vibration analysis are performed on car body-
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Rahman, Ebadur. "Study of the Effect of Elastic Foundation on the Accelerated Durability Testing of Ground Vehicles." 2016. http://hdl.handle.net/1993/31540.

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Accelerated durability testing of automotive components has become a major interest as it may predict the life characteristics of the vehicle by testing fatigue failure at higher stress level within a shorter period of time. In this work, a specially designed sub-scaled experimental testing bed with the rigid and elastic supports of a simply supported beam was designed and built to compare the effects of the elastic foundation on the change of modal parameters of the tested structure which was later used to tune the FE model. Afterwards, the accelerated loading profiles of both sine sweep and
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Book chapters on the topic "Sine sweep vibration"

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Haiyang, Gao, Guo Xinglin, Xie Yicun, Yang Yanjing, and Ouyang Huajiang. "Fault Detection for a Satellite-like Structure Using Sine Sweep Vibration Test Data." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-8331-1_34.

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Manning, Jane. "COLIN MATTHEWS (b. 1946)Out in the Dark (2008)." In Vocal Repertoire for the Twenty-First Century, Volume 2. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780199390960.003.0046.

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This chapter addresses British composer Colin Matthews’s Out in the Dark (2008). This little song is but a modest sample of Matthews’s work, which covers virtually all genres. The piece’s tessitura means it can be tackled by most voices, since extremes of register and dynamic are avoided. In view of the buoyancy of timbre required, and the crucial instruction semplice, a soprano is most suitable, able to float a sweet ‘silvered’ sound with a distinctively bright sheen such as often found in singers of French songs. The tone can be ‘pure’ in the widest sense, but definitely not devoid of expression or vibrato or affectedly naïve. Apart from the initial pianissimo, no dynamics are marked, and this represents a challenge to the poise and powers of concentration of both performers. The voice part moves steadily through the work in unadorned lines, with a natural, lilting one-in-a bar feel, made more flexible by the interplay of two against three.
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Conference papers on the topic "Sine sweep vibration"

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Niu Baoliang and Yan Xia. "A FFT-based variety-sampling-rate sine-sweep vibration controller." In Proceedings of 2003 International Conference on Neural Networks and Signal Processing. IEEE, 2003. http://dx.doi.org/10.1109/icnnsp.2003.1281216.

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Jia, Dongyi, and Fengfeng Xue. "Sine Sweep Vibration Test Analysis of the Nozzle in SRM." In ICAIIS 2021: 2021 2nd International Conference on Artificial Intelligence and Information Systems. ACM, 2021. http://dx.doi.org/10.1145/3469213.3470686.

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Shiotsuka, Toshinari, Kazuo Yoshida, and Akio Nagamatsu. "Vibration Control With Neural Network Dynamic Compensator." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0600.

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Abstract An approach is presented on designing the dynamic compensator-type controller, using two kinds of neural networks. One is used for identification of system dynamic characteristics of the control object. A time history of response under sine-sweep input is used as the teaching signal of this neural network. The other is used as the neural network controller. The control input is determined with this neural network in order that a performance index concerning the state variable and the input force takes the minimum value. These two neural networks are combined reciprocally in a cascade
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Notohardjono, Budy, Shawn Canfield, Suraush Khambati, and Richard Ecker. "Verification of Mainframe Computer Structure Finite Element Model Under Vibration and Seismic Tests." In ASME 2018 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/pvp2018-84200.

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Shorter development design schedules and increasingly dense product designs create difficult challenges in predicting structural performance of a mainframe computer’s structure. To meet certain certification benchmarks such as the Telcordia Technologies Generic Requirements GR-63-CORE seismic zone 4 test profile, a physical test is conducted. This test will occur at an external location at the end of design cycle on a fully functional and loaded mainframe system. The ability to accurately predict the structural performance of a mainframe computer early in the design cycle is critical in shorte
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Wang, Weimin, Qihang Li, Jinji Gao, Timothy Dimond, and Paul Allaire. "Forward and Backward Mode Excitation of Flexible Rotor Supported by Tilting Pad Bearings: Numerical and Experimental Investigation." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26275.

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Understanding rotor modal excitations is crucial for high performance centrifugal compressors and other rotating machines. Assuring low vibration levels of such machines at operating conditions before delivery is important both for original equipment manufacturers (OEMs) and end users. In this paper, transient simulations of a full scale test rig rotor subject to sine sweep excitations are performed to investigate the forward and backward rotor whirling response. The applied sine sweep excitations are circular forward, circular backward, and elliptical forward, respectively. The effects of exc
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Nakamura, Gaku, Yukihiko Okuda, Shoichi Ebato, et al. "A Simplified Analysis Method for Elasto-Plastic Seismic Response Using the Energy Balance Equation of a Maximum Hysteresis Loop." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45531.

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With increasing magnitude of design earthquake ground motions, it is necessary to develop methods of evaluating the seismic safety margin that are more exact than the current methods. However, a standard nonlinear analysis method requires step by step calculations of the numerical time integration scheme to obtain the seismic response. The authors present a new simplified analysis method of elasto-plastic seismic response. The proposed method is formulated by the energy balance between the input energy and the dissipated energy of an equivalent single degree of freedom model for actual equipme
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Kawashita, Rimpei, Tadasuke Nishioka, Shimpei Yokoyama, Makoto Iwasaki, Shuichi Isayama, and Yuichiro Waki. "Study on Subsynchronous Vibration With Tilting Pad Journal Bearing Under Starved Lubrication." In ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/gt2018-75607.

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Industrial machines such as gas and steam turbines require high efficiency and reliability. Direct lubricated bearings have been developed and installed to reduce mechanical losses. In recent years, it has been reported in the literature that subsynchronous vibration can occur to rotor shafts with direct lubricated tilting pad journal bearings under reduced oil flow rate conditions. In this study, a test rig with a 200 mm diameter and 3.5 meter long rotor supported by a direct lubricated tilting two pad journal bearing was constructed. The primary critical speed is 2100rpm and rotational speed
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San Andrés, Luis, Sean Den, and Sung-Hwa Jeung. "Transient Response of a Short-Length (L/D=0.2) Open-Ends Elastically Supported Squeeze Film Damper: Centered and Largely Off-Centered Whirl Motions." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56492.

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Commonly employed in air breathing (gas turbine) engines, squeeze film dampers (SFDs) reduce the amplitude of rotor vibration while traversing system critical speeds or in transient events such as during a maneuver load, a hard landing, a blade loss, or an engine startup/shutdown sequence that could instantaneously shift a damper journal eccentricity (es) to near its clearance (c). Experiments investigate the dynamic force performance of an open ends, short-length (L/D=0.2) SFD test rig with radial clearance c=267 μm and undergoing centered (es/c=0) to largely off-centered (es/c → 1) whirl orb
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Vandevoordt, Kenneth P., and Michael Feng. "Dynamic Behavior of Electronic Module Spring Clips, Retention Bar, and Backplane Connector: Modeling and Testing." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11403.

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Electronic modules for a guidance system are mounted in a rack with spring clips resisting motion normal to the printed wiring board (PWB) and an aluminum bar with an elastomer pad keeping the module connected to a backplane. The elastomer pad also resists motion normal to the board. The proper boundary conditions for the spring clips, retention bar, and connector are needed in a finite element model in order to evaluate the shock and vibration transmitted to the module’s electrical components. The finite element model of the module was assembled, and an actual module was tested under random v
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Notohardjono, Budy, Richard Ecker, and Shawn Canfield. "Dynamics Modeling and Analysis of Riveted Mainframe Computer Structure." In ASME 2017 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvp2017-65140.

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A typical mainframe computer rack is narrow, tall and long. In certain installations, during its functional operation, the server can be subjected to earthquake events. The rack is a steel structure joined together with steel rivets. One of the rack’s functions is to protect the critical components such as the processor, input-output and storage drawers from excessive motion by minimizing the amount of deflection. The riveted joints pose a challenge in accurately representing more than three thousand joints in a finite element (FE) model. In the FE model, bonding together sheet metal regions a
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