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Journal articles on the topic 'Control vibration'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Kłosiński, Jacek, Ludwik Majewski, and Arkadiusz Trąbka. "Control of Two-Dimensional Vibrating System." Solid State Phenomena 164 (June 2010): 333–38. http://dx.doi.org/10.4028/www.scientific.net/ssp.164.333.

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A strategy for control of a system of two electrical vibrators mounted onto the vibrating plate of a typical small table vibrator was discussed in the present paper. The aim of the considered control system is rapid positioning of counterbalances for ensuring achievement of the assumed directions of vibrations and loading forces (where , m is unbalanced mass, ω is angular velocity of the vibrator shaft, e is distance between the unbalanced mass and the vibrator rotary axis). The strategy of the control consists in setting of different directions of vibrator rotations together with controlled change of vibration frequency and amplitude. Numerical analysis was performed. The obtained results are presented in a graphical form.

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2

Oliinyk, O. Yu. "VIBRATION FREQUENCY DENSITY CONTROL METHOD IN VIBRATION CONDITIONS." METHODS AND DEVICES OF QUALITY CONTROL, no. 2(43) (December 24, 2019): 41–47. http://dx.doi.org/10.31471/1993-9981-2019-2(43)-41-47.

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The use of existing vibration frequency measuring instruments for monitoring technological parameters inside apparatus and equipment is limited due to the presence of vibrations and industrial noise. The lack of data on the use of part of the technological apparatus as flow resonators through the unexplored basic analytical equations for determining the amplitude-frequency characteristics of such resonators determined the direction of these studies. The article is devoted to studies aimed at establishing the relationship between the vibrational field of the resonator, which is used as part of the technological apparatus with a controlled environment, and its reaction in the form of a change in the frequency or amplitude of the resonator’s own vibrations, which carries information about the properties of the substance in the apparatus. The experimental setup diagram, experimental methodology, and data on determining the oscillation frequency of the resonator under vibration conditions for metallic (corrosion-resistant steel) and non-metallic (organic glass) resonators are presented. The curves obtained from the experimental values were approximated using linear and hyperbolic approximations. It was found that the use of hyperbolic approximation reduces the average approximation error by more than six times. It was found that the error of the hyperbolic approximation error does not exceed 0.022% for a metal resonator and 0.05% for an organic glass resonator. The conducted experimental studies confirm the presence of a determinate coupling of the measured frequency characteristics of the resonator with the density, which was measured inside the equipment. The obtained data was used to develop the scientific and methodological foundations of the vibrational frequency control method in conditions of vibration using a part of the device as a resonator of the vibrational frequency sensor.

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3

Yasuda, Masashi. "Vibration control unit and vibration control body." Journal of the Acoustical Society of America 123, no. 3 (2008): 1229. http://dx.doi.org/10.1121/1.2901336.

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4

FERGUSON, N. S. "Keynote 3 Nonlinear systems for vibration control(The 12th International Conference on Motion and Vibration Control)." Proceedings of the Symposium on the Motion and Vibration Control 2014.12 (2014): _Keynote3——_Keynote3—. http://dx.doi.org/10.1299/jsmemovic.2014.12._keynote3-.

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5

Mori, Kentaro. "Vibrator, vibration unit, and vibrator control method." Journal of the Acoustical Society of America 120, no. 6 (2006): 3445. http://dx.doi.org/10.1121/1.2409421.

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6

Fang, Mingxing, Lijun Wu, Jing Cheng, Youwu Du, and Jinhua She. "Active Structural Control Based on Integration ofΗ∞Control and Equivalent-Input-Disturbance Approach." Journal of Advanced Computational Intelligence and Intelligent Informatics 20, no. 2 (March 18, 2016): 197–204. http://dx.doi.org/10.20965/jaciii.2016.p0197.

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This paper describes an approach for suppressing earthquake-induced vibrations of building structures. The design of the control system is based on the equivalent-input-disturbance approach for improving the vibration rejection performance. A control system configuration with a vibration estimator is described, and a method of designing such a control system that employsΗ∞control is presented. The vibration rejection performance is guaranteed by the control structure, in which an equivalent vibration signal on the control input channel is estimated and directly incorporated into the control input. The validity of our method is demonstrated through simulations.

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7

Nagai, Nobuyuki, Seiji Hashimoto, Yoshimitsu Fujikura, Jyunpei Takahashi, Shunji Kumagai, Makoto Kasai, Kenji Suto, and Hiroaki Okada. "Reproduction of Vehicle Vibration by Acceleration-Based Multi-Axis Control." Applied Mechanics and Materials 251 (December 2012): 129–33. http://dx.doi.org/10.4028/www.scientific.net/amm.251.129.

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This paper presents the development of the 3-axis vibrating machine precisely reproducing vehicle's acceleration characterized with multi-mode vibration. For the reproduction in vertical axis, at first, the system identification experiment of the vibrator is carried out. Using the identified model, the feedforward control based on the pole-zero cancellation method is applied to realize the ideal transfer gain of one from the acceleration reference to its output. Next, for reproducing the acceleration in horizontal plane, the continuous-path tracking (CPT) control system is constructed using the precision XY stage. In the CPT control system, the disturbance observer is introduced focusing on the accurate reproduction within limited frequency. Finally, the experimental verification of the proposed 3-axis acceleration vibration reproduction system is shown using the developed DSP-controlled 3-axis vibrating machine.

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8

KIDA, Naohiro, Shinya HONDA, and Yoshihiro NARITA. "3B11 Adaptive vibration control using self-organizing map(The 12th International Conference on Motion and Vibration Control)." Proceedings of the Symposium on the Motion and Vibration Control 2014.12 (2014): _3B11–1_—_3B11–8_. http://dx.doi.org/10.1299/jsmemovic.2014.12._3b11-1_.

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9

Zhang, Ting, and Hongguang Li. "Adaptive modal vibration control for smart flexible beam with two piezoelectric actuators by multivariable self-tuning control." Journal of Vibration and Control 26, no. 7-8 (January 6, 2020): 490–504. http://dx.doi.org/10.1177/1077546319889842.

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It has been popular for decades that the vibrations of space structures are suppressed with smart actuators. However, the higher mode vibrations are often motivated when a control strategy is applied to attenuate the vibration for the smart structures. Moreover, if the multi-mode vibration of a smart structure is suppressed with multi-actuators, a proper multivariable control law will be adopted to solve the coupling problem caused by the multi-actuators of the smart structure. Therefore, in the paper, a decoupling technique for two modal vibrations of a smart flexible beam with two piezoelectric patches is adopted by adaptive control. The proposed control law is designed with a multivariable minimum variance self-tuning control. Considering the first two orders of modal vibrations, two piezoelectric patches are configured on the flexible beam according to the strain of the first two orders of modal vibrations along the longitudinal direction of the beam. A dynamical model for the flexible beam with two piezoelectric actuators is constructed by the mode superposition method. With the dynamical model, simulations are implemented to suppress the free vibration of the flexible beam. Moreover, experiments are carried out to verify the effectiveness of the multivariable minimum variance self-tuning control for vibration suppression of the flexible structure. The control results clearly show that the free vibration amplitude of the cantilevered beam with two control voltages applied to the two piezoelectric patches is less than that with one control voltage applied to the first piezoelectric actuator. Thus, multivariable minimum variance self-tuning control is a more efficient approach for suppressing multimodal vibration for a smart flexible beam with two piezoelectric actuators compared with the conventional velocity feedback control.

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10

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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11

Jiao, Z., P. Chen, Q. Hua, and S. Wang. "Adaptive vibration active control of fluid pressure pulsations." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 217, no. 4 (June 1, 2003): 311–18. http://dx.doi.org/10.1177/095965180321700407.

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Conventionally, passive hydraulic absorbers are utilized in order to reduce the vibrations of the fluid power supply systems. It is very difficult to adapt the variable operation conditions, such as inconsistent vibration frequency and varying loads. This paper presents a new vibration active control method to diminish the vibrations of the fluid power supply efficiently. This method is adaptive and robust in controlling the fluctuating frequencies and load disturbances and is capable of keeping the vibrations at a minimum level under variable pump speeds. This paper illustrates the theory and experimentation of vibration active control of a fluid power supply pipeline system in detail. The multilayer piezoelectric technology (PZT) driven orifice valve is designed with characteristics of a proportional opening area to the control voltage, a high-frequency bandwidth and small size. The adaptive-optimum control method is adopted to adjust the control parameters at any instant against emerging disturbances. Based on the test rig, different vibration control methods were applied; the results indicate and confirm the validity of this principle.

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12

HIRAMOTO, Kazuhiko, and Sho SAITO. "1C13 Active/semi-active hybrid control framework for vibration control of mechanical systems(The 12th International Conference on Motion and Vibration Control)." Proceedings of the Symposium on the Motion and Vibration Control 2014.12 (2014): _1C13–1_—_1C13–10_. http://dx.doi.org/10.1299/jsmemovic.2014.12._1c13-1_.

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13

Sheth, Anant J., Pratikkumar Rajendralal Parmar, Brijesh L. Solanki, Nirav Sailor, Bhavin P. Gohil, and Harshitkumar A. Patel. "Vibration Control of Slab Breaker Machine by Passive Dual Mass Tuned Vibration Absorber." Applied Mechanics and Materials 592-594 (July 2014): 2112–16. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2112.

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Tuned Vibration Absorber (TVA) is the best solution available to control/suppress vibrations of any dynamic systems. Dual mass Tuned Vibration Absorber are designed and implemented for the vibration control. Though the slab barker machine is operating at various natural frequencies, the Dual mass TVA can be designed to mitigate the vibrations depending on the position of mass. The experiments were carried out for various locations of mass. And it is found that the vibration /shock waves of slab breaker machine are absorbed by using a passive TVA system. By keeping the operating condition same it is practically found that at the location of 4cm the optimal vibration reduction obtained and the amplitude is found to be reduced by 37 %.

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14

Ford, DG, A. Myers, F. Haase, S. Lockwood, and A. Longstaff. "Active vibration control for a CNC milling machine." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 2 (April 4, 2013): 230–45. http://dx.doi.org/10.1177/0954406213484224.

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There is a requirement for improved three-dimensional surface characterisation and reduced tool wear when modern computer numerical control (CNC) machine tools are operating at high cutting velocities, spindle speeds and feed rates. For large depths of cut and large material removal rates, there is a tendency for machines to chatter caused by self-excited vibration in the machine tools leading to precision errors, poor surface finish quality, tool wear and possible machine damage. This study illustrates a method for improving machine tool performance by understanding and adaptively controlling the machine structural vibration. The first step taken is to measure and interpret machine tool vibration and produce a structural model. As a consequence, appropriate sensors need to be selected and/or designed and then integrated to measure all self-excited vibrations. The vibrations of the machine under investigation need to be clearly understood by analysis of sensor signals and surface finish measurement. The active vibration control system has been implemented on a CNC machine tool and validated under controlled conditions by compensating for machine tool vibrations on time-varying multi-point cutting operations for a vertical milling machine. The design of the adaptive control system using modelling, filtering, active vibration platform and sensor feedback techniques has been demonstrated to be successful.

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15

Sun, J. Q., M. A. Norris, D. J. Rossetti, and J. H. Highfill. "Distributed Piezoelectric Actuators for Shell Interior Noise Control." Journal of Vibration and Acoustics 118, no. 4 (October 1, 1996): 676–81. http://dx.doi.org/10.1115/1.2888351.

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Structural controls have been recently used to reduce acoustic radiation from vibrating structures. It is well known that in some cases, a control system can reduce the noise and, at the same time, increase the structural vibration. This is one of the concerns with the structural control approach to solve the noise problem. Developing a control system that can reduce the noise and structural vibration at the same time is an important task. This paper proposes one of possible approaches for accomplishing this task. The emphasis of the present approach is not on control strategies, but rather on the design of distributed piezoelectric actuators for the structural control system. In the paper, we study the interior noise radiation and the structural vibrations of uniform cylindrical shells, which are taken as a simplified model of a fuselage section. Two distributed piezoelectric actuators are developed based upon the understanding of the structural-acoustic coupling properties of the system. These actuators can reduce the shell structural vibration and the interior noise at the same time in a wide range of frequencies by using only the acoustic error sensors. Hence, an optimal noise reduction is achieved. Computer simulations and the experiments have shown that the actuators can lead to global noise and vibration reduction. Excellent agreement between the analytical predictions and the experiments strongly supports the theoretical development.

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16

Shimose, Shigeru, Kanjuro Makihara, and Junjiro Onoda. "Comparison of Analog and Digital Self-Powered Systems in Multimodal Vibration Suppression." Smart Materials Research 2012 (February 21, 2012): 1–9. http://dx.doi.org/10.1155/2012/287128.

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This paper compares our analog and digital self-powered systems for vibration suppression, and shows experimental results of multimodal vibration suppression for both self-powered systems. The experimental results are evaluated in light of the damping performance and adaptability under various vibrational conditions. We demonstrate various examples of our innovative vibration suppression method, called “digital self-powered.” Proper status switching of an electric circuit made up of an inductor and a selective switch connected to a piezoelectric transducer attenuates the vibrations. The control logic calculation and the switching events are performed with a digital microprocessor that is driven by the electrical energy converted from the mechanical vibration energy. Therefore, this vibration suppression system runs without any external power supply. The self-powering feature makes this suppression method useful in various applications. To realize an ideal vibration suppression system that is both self-powered and effective in suppressing multimode vibration, sophisticated control logic is implemented in the digital microprocessor. We demonstrate that our digital self-powered system can reduce the vibrational displacements of a randomly excited multimodal structure, by as much as 35.5%.

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17

YOSHITAKE, Yutaka, Ryosuke SHIMIZU, Fumitaka SHIBAHARA, Fumiya MIYAGAWA, Shuhei KAJIHARA, and Akira HARADA. "308 Vibration Control Using Hula-Hoop : Vibration Control Effect and Vibration Control of Plane Motion." Proceedings of the Dynamics & Design Conference 2011 (2011): _308–1_—_308–9_. http://dx.doi.org/10.1299/jsmedmc.2011._308-1_.

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18

Li, Shan, Liang Xu, and Yu Zhang. "The Noise Control and Research of Vibration Slot in Vibrating Conveyor." Advanced Materials Research 479-481 (February 2012): 1371–74. http://dx.doi.org/10.4028/www.scientific.net/amr.479-481.1371.

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Vibration slot, which is connected by the framework welded by the angle and the u-shaped slot formed by the stainless steel plate bending with fasteners, is an important part of the vibrating conveyor. The major function of vibration slot is carrying and conveying material. Due to vibration slot owning the thin plate structure and the flat large feature of surface, it is the primary noise source of vibrating conveyor. Therefore, it is very important to research and control the surface radiation noise of the vibration slot for reducing the noise of vibrating conveyor. This paper, through combining the finite element and the boundary element, researches noise radiation of vibration slot and understands the main noise source of vibration slot and radiation condition. The natural frequency of vibration slot, the vibratory response of vibration slot and the noise radiation of vibration slot are researched by inputting different structure parameters. Through analysis and comparison, some regularity conclusions that will provide a basis for the noise reduction of vibration slot are summarized .

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19

SU, Dongxu, Kimihiko NAKANO, Rencheng ZHENG, and Matthew P. CARTMELL. "2A23 Stiffness tunable nonlinear vibrational energy harvester with damping control(The 12th International Conference on Motion and Vibration Control)." Proceedings of the Symposium on the Motion and Vibration Control 2014.12 (2014): _2A23–1_—_2A23–9_. http://dx.doi.org/10.1299/jsmemovic.2014.12._2a23-1_.

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20

da Cunha, Bruno Sousa Carneiro, and Fábio Roberto Chavarette. "Vibration Control Applied in a Semi-Active Suspension Using Magneto Rheological Damper and Optimal Linear Control Design." Applied Mechanics and Materials 464 (November 2013): 229–34. http://dx.doi.org/10.4028/www.scientific.net/amm.464.229.

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In this paper we study the behavior of a semi-active suspension witch external vibrations. The mathematical model is proposed coupled to a magneto rheological (MR) damper. The goal of this work is stabilize of the external vibration that affect the comfort and durability an vehicle, to control these vibrations we propose the combination of two control strategies, the optimal linear control and the magneto rheological (MR) damper. The optimal linear control is a linear feedback control problem for nonlinear systems, under the optimal control theory viewpoint We also developed the optimal linear control design with the scope in to reducing the external vibrating of the nonlinear systems in a stable point. Here, we discuss the conditions that allow us to the linear optimal control for this kind of non-linear system.

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21

Rao, Nadupuru Bhaskara, Rajesh CVS, and Dommeti Srinivasa Rao. "Irregular Composites Thermal Establishment for Vibration Control." International Journal of Trend in Scientific Research and Development Volume-2, Issue-6 (October 31, 2018): 429–33. http://dx.doi.org/10.31142/ijtsrd18483.

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22

IBA, Daisuke, and JR SPENCER. "1C21 Vibration Control using Harmonically-varying Damping." Proceedings of the Symposium on the Motion and Vibration Control 2010 (2010): _1C21–1_—_1C21–10_. http://dx.doi.org/10.1299/jsmemovic.2010._1c21-1_.

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23

Pla, Frederic G., and Harindra Rajiyah. "Active vibration control of structures undergoing bending vibrations." Journal of the Acoustical Society of America 99, no. 4 (1996): 1819. http://dx.doi.org/10.1121/1.415344.

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24

Papaspiridis, Fotis G., and I. A. Antoniadis. "Dielectric Elastomer Actuators as Elements of Active Vibration Control Systems." Advances in Science and Technology 61 (September 2008): 103–11. http://dx.doi.org/10.4028/www.scientific.net/ast.61.103.

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Dielectric elastomer actuators (DEA) are a new class of actuators, exhibiting electric field-induced strains. Upon electrical stimulation they can provide large strains and consequently electrical forces. These abilities along with their high compliance make them candidates for active vibration control. This parer presents a general framework for the usage of DEA as elements of active vibration control systems. The electrical and mechanical model of the DEA and a basic control law, for varying the voltage, is reviewed. The basic idea is to reduce the acceleration of the vibrating equipment when the system approaches its equilibrium. The application of the actuator in a single-dof-mass-spring system is modeled. The results with and without control are presented and show the large capabilities of the actuator to suppress the vibrations induced by an external force. DEA has viscoelastic properties, which can further increase the damping capabilities of the vibration absorber but on the other hand produce a time delay, which must be taken into account. Furthermore, the technological issues arisen -structure of the actuator, power and equipment needs, effect of prestrain and frequency, distributed actuation- are discussed.

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25

Khomenko, Andrei P., Sergey K. Kargapoltsev, and Andrey V. Eliseev. "Development of Approaches to Creation of Active Vibration Control System in Problems of the Dynamics for Granular Media." MATEC Web of Conferences 148 (2018): 11004. http://dx.doi.org/10.1051/matecconf/201814811004.

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The article deals with the development of mathematical models and evaluation criteria of the vibration field in the dynamic interactions of the elements of the vibrational technological machines for the processes of vibrational strengthening of long-length parts with help of a steel balls working medium. The study forms a theoretical understanding of the modes of motions of material particles in interaction with a vibrating surface of the working body of the vibration machine. The generalized approach to the assessment of the dynamic quality of the work of vibrating machines in multiple modes of tossing, when the period of free flight of particles is a multiple of the period of the surface oscillations of the working body, is developed in the article. For the correction of vibration field of the working body, the characteristics of dynamic interactions of granular elements of the medium are taken into account using original sensors. The sensors that can detect different particularities of interaction of the granular medium elements at different points of the working body are proposed to evaluate the deviation from a homogeneous and one-dimensional mode of vibration field. Specially developed sensors are able to register interactions between a single granule, a system of granules in filamentous structures, and multipoint interactions of the elements in a close-spaced cylindrical structure. The system of regularization of the structure of vibration fields based on the introduction of motion translation devices is proposed using the multi-point sensor locations on the working body. The article refers to analytical approaches of the theory of vibration displacements. For the experimental data assessment, the methods of statistical analysis are applied. It is shown that the peculiar features of the motion of granular medium registered by the sensors can be used to build active control systems of field vibration.

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26

Hujare, Pravin P., and Anil D. Sahasrabudhe. "Effect of Thickness of Damping Material on Vibration Control of Structural Vibration in Constrained Layer Damping Treatment." Applied Mechanics and Materials 592-594 (July 2014): 2031–35. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2031.

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The reduction of noise and vibration is a major requirement for performance of any vibratory system. Passive damping technology using viscoelastic materials is classically used to control vibrations. Viscoelastic material among the damping materials is widely used to dissipate the structural vibration energy. Three-layer sandwich beams, made of two elastic outer layers and a viscoelastic layer sandwiched between them, are considered as damping structural elements. This paper presents the effect of thickness of constrained damping material on modal loss factor of vibrating structures. Measurements are performed on sandwich beam structure. In order to understand the effectiveness of the sandwich structures, the dynamics of beam with constrained viscoelastic layers are investigated. Comparisons of the experimental and the Numerical results confirm that the damping levels and the natural frequencies of damped structures are well corroborated.

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27

Chen, Li-Qun. "Analysis and Control of Transverse Vibrations of Axially Moving Strings." Applied Mechanics Reviews 58, no. 2 (March 1, 2005): 91–116. http://dx.doi.org/10.1115/1.1849169.

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In this paper, research on transverse vibrations of axially moving strings and their control is thoroughly reviewed. In the last few decades, there have been extensive studies on analysis and control of transverse vibrations of axially moving strings because of the wide applications of many engineering devices that axially moving strings represent. In the investigations adopting linear models of moving strings, the paper summarizes recent studies on modal analysis, complicatedly constrained strings, coupled vibrations, and parametric vibration, as well as some early results. In the investigations adopting nonlinear models of moving strings, the paper presents the governing equations with large amplitude, and reviews progress on discretized or direct approximate analytical analyses and numerical approaches based on the Galerkin method or the finite difference method. Furthermore, investigations are reported on modeling of damping mechanisms as viscoelastic materials, coupled vibration of power transmission systems, and bifurcation and chaos. The state of the art of active control of moving strings is surveyed on controllability and observability, the Laplace transform domain analysis and the energy analysis, nonlinear vibration control and adaptive vibration control. Finally, future research directions are suggested such as nonlinear vibration of moving strings under complex constraints and couplings, energetics of nonlinear and time-varying strings, bifurcation and chaos in transverse motion of moving strings, control of hybrid systems containing moving strings, robust and adaptive controls of nonlinear moving strings, and experimental investigations. In this review article there are 242 references cited.

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28

Jolly, M. R., and D. L. Margolis. "Regenerative Systems for Vibration Control." Journal of Vibration and Acoustics 119, no. 2 (April 1, 1997): 208–15. http://dx.doi.org/10.1115/1.2889705.

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The potential for energy regeneration in vibration control systems is investigated. Such control systems hold the possibility of self-sustainability by alternately extracting and releasing energy originating from the vibrating system in a controlled non-passive manner. To be self-sustaining, more energy must on average flow into the control system than flows out. Generally speaking, the performance of such a system will approach that of an active system while theoretically requiring no externally supplied power. As research progresses in this area, an increasing number of viable applications for regenerative vibration control systems are being uncovered. This paper examines two broad applications: base-excited suspensions and periodically excited compound mounts. Some experimental results of the former are presented to support our claims.

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29

Nonami, Kenzo, and Tsutomu Mita. "Vibration Control Using H.INF. Control." Journal of the Robotics Society of Japan 13, no. 8 (1995): 1089–95. http://dx.doi.org/10.7210/jrsj.13.1089.

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30

Nakagaki, Osamu. "Vibration control device." Journal of the Acoustical Society of America 102, no. 6 (1997): 3246. http://dx.doi.org/10.1121/1.420282.

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31

Shankar, K., T. Balendra, V. J. Modi, A. Akinturk, W. Tse, M. Gu, F. J. Peng, et al. "Building (Vibration control)." Wind Engineers, JAWE 2001, no. 89 (2001): 429–56. http://dx.doi.org/10.5359/jawe.2001.89_429.

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32

Reithmeier, E., and G. Leitmann. "Structural vibration control." Journal of the Franklin Institute 338, no. 2-3 (March 2001): 203–23. http://dx.doi.org/10.1016/s0016-0032(00)00089-2.

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33

Karimi, Hamid Reza, Huijun Gao, James Lam, and Haiping Du. "Vibration control systems." Mechatronics 24, no. 4 (June 2014): 287–88. http://dx.doi.org/10.1016/j.mechatronics.2014.05.001.

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34

Sloane, Edwin A. "Vibration control system." Journal of the Acoustical Society of America 90, no. 5 (November 1991): 2876. http://dx.doi.org/10.1121/1.401858.

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Sloane, Edwin A. "Vibration control system." Journal of the Acoustical Society of America 90, no. 5 (November 1991): 2876. http://dx.doi.org/10.1121/1.401859.

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36

Ueno, Kazuyoshi, and Katsushi Imoto. "Vibration control system." Journal of the Acoustical Society of America 91, no. 4 (April 1992): 2301. http://dx.doi.org/10.1121/1.403633.

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37

Newman, Wyatt S. "Vibration control system." Journal of the Acoustical Society of America 78, no. 4 (October 1985): 1452. http://dx.doi.org/10.1121/1.392844.

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38

Doi, Shunichi, Eiichi Yasuda, and Hasutaka Hayashi. "Vibration control apparatus." Journal of the Acoustical Society of America 89, no. 3 (March 1991): 1484. http://dx.doi.org/10.1121/1.400665.

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39

Mizuno, Keichiro, Kazuyoshi Iida, and Kazumoto Murakami. "Vibration control system." Journal of the Acoustical Society of America 90, no. 1 (July 1991): 622. http://dx.doi.org/10.1121/1.401221.

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Shimoda, Ikuo, and Kiyoharu Suzuki. "Vibration control structure." Journal of the Acoustical Society of America 117, no. 6 (2005): 3355. http://dx.doi.org/10.1121/1.1948261.

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41

Kobayashi, Toshiaki. "Vibration control system." Journal of the Acoustical Society of America 97, no. 2 (February 1995): 1361. http://dx.doi.org/10.1121/1.412197.

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42

Elliott, Stephen J., Philip A. Nelson, and Ian M. Stothers. "Active vibration control." Journal of the Acoustical Society of America 94, no. 2 (August 1993): 1177. http://dx.doi.org/10.1121/1.406937.

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43

Harper, Mark F. L. "Active vibration control." Journal of the Acoustical Society of America 94, no. 6 (December 1993): 3533. http://dx.doi.org/10.1121/1.407156.

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Masuda, Hiromitsu. "Vibration control apparatus." Journal of the Acoustical Society of America 99, no. 6 (1996): 3280. http://dx.doi.org/10.1121/1.415210.

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UMEZAWA, Kiyohiko. "Gear Vibration Control." Journal of the Society of Mechanical Engineers 88, no. 805 (1985): 1377–82. http://dx.doi.org/10.1299/jsmemag.88.805_1377.

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46

Landolsi, Fakhreddine, Slim Choura, and Ali H. Nayfeh. "Control of 2D Flexible Structures by Confinement of Vibrations and Regulation of Their Energy Flow." Shock and Vibration 16, no. 2 (2009): 213–28. http://dx.doi.org/10.1155/2009/727236.

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Abstract:

In this paper, we investigate the control of 2D flexible structures by vibration confinement and the regulation of their energy flow along prespecified spatial paths. A discretized-model-based feedback strategy, aiming at confining and suppressing simultaneously the vibration, is proposed. It is assumed that the structure consists of parts that are sensitive to vibrations. The control design introduces a new pseudo-modal matrix derived from the computed eigenvectors of the discretized model. Simulations are presented to show the efficacy of the proposed control law. A parametric study is carried out to examine the effects of the different control parameters on the simultaneous confinement and suppression of vibrations. In addition, we conducted a set of simulations to investigate the flow control of vibrational energy during the confinement-suppression process. We found that the energy flow can be regulated via a set of control parameters for different confinement configurations.

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Chichkov, B. A. "TECHNIQUE OF PROCESSING OF VIBRATION MONITORING DATA, RECEIVED BY THE USE OF MICROELECTROMECHANICAL SYSTEMS." Civil Aviation High TECHNOLOGIES 22, no. 2 (April 24, 2019): 38–48. http://dx.doi.org/10.26467/2079-0619-2019-22-2-38-48.

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Abstract:

During the operation of such machines as aviation engines and land based gas turbines, the obligatory vibration monitoring is carried out which is focused on the prevention of their possible damages and destructions during the work on resonant modes or because of material fatigue. Nowadays, as a rule, the standard or additional equipment is used for such control which includes as a component various types of one-axial vibration gauges. In most cases, the control is carried out continuously, and the frequency of registration can differ from several values for a flight to several values in a second. The data received during routine vibration monitoring is peak values of vibrations. They are diagnosed, using the pre-start control and some ways of fit and the tendency of changes of vibration during the operation. Microelectromechanical systems gaining now the increasing distribution (MEMS), as a rule, allow to obtain the data about vibro-acceleration without giving data about the frequency vibration characteristics. But also the regular equipment of vibrational control used during the operation of considered machines does not give data about the frequency vibration characteristics. However, microelectromechanical devices allow to obtain the data with the essential higher frequency of sample rate (in tens and hundreds times) in comparison with mass equipment used now for control, and to carry out the simultaneous control of vibration on three axes using one gauge. Apart from the vibration peak value the position relative to a reference point is fixed. Does the information received according to mentioned above features have better diagnostic potential? Will the array dimension received during data verification be an obstacle to the operational processing? Materials of the present article are an attempt to give answers to these questions and to make representation about possibility and features of an estimation of a technical state of machines by the results of processing of time series vibro-accelerations received with the use of such processing microelectromechanical systems. It is represented that the way of data processing of vibrating monitoring considered in the article at sufficient simplicity of realization allows to solve the problem of an estimation of a technical state of monitoring item.

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Ma, Meng, Bolong Jiang, Weifeng Liu, and Kuokuo Liu. "Control of Metro Train-Induced Vibrations in a Laboratory Using Periodic Piles." Sustainability 12, no. 14 (July 21, 2020): 5871. http://dx.doi.org/10.3390/su12145871.

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Laboratories with sensitive instruments need a low-vibration environment. It is a challenge to control the train-induced vibration impact on these instruments when a newly planned metro line is adjacent to a laboratory building. An alternative method of mitigating train-induced ground vibrations involves installing measures along the transmission path. Recent research has highlighted the potential of periodic pile barriers with specifically designed band gaps for controlling environmental vibrations. This study performed in-situ measurements of ambient vibrations inside and outside a laboratory containing various types of sensitive instruments and located adjacent to a newly designed metro line. The vibration transfer function of the laboratory was then obtained. To help design and optimize the band gaps of periodic piles, a novel band gap performance evaluation function was proposed. Finally, numerical analysis was conducted to validate the mitigation effect of the designed periodic piles. The results showed that the band gap performance evaluation function can be used to optimize the mitigation effect of periodic piles. The proposed periodic piles clearly attenuated vibrations between 52.4 and 74.3 Hz, especially those at 63 Hz. A comparison of general vibration criteria (VC) curves revealed that vibration attenuation of one level can be obtained by the designed periodic piles.

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KOTAKE, Shigeo, and Kazunori YAGI. "2C25 Application of sampled-data control by using vibration manipulation function to suppress residual vibration of travelling crane(The 12th International Conference on Motion and Vibration Control)." Proceedings of the Symposium on the Motion and Vibration Control 2014.12 (2014): _2C25–1_—_2C25–10_. http://dx.doi.org/10.1299/jsmemovic.2014.12._2c25-1_.

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SUDWILAI, Phaisarn, Koichi OKA, Akiyuki SANO, and Yuta HIROKAWA. "2A12 Vibration Control With Linear Actuator Permanent Magnet System using Robust Control." Proceedings of the Symposium on the Motion and Vibration Control 2010 (2010): _2A12–1_—_2A12–11_. http://dx.doi.org/10.1299/jsmemovic.2010._2a12-1_.

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