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Journal articles on the topic 'Vibration Isolation System'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Smirnov, Vladimir, and Vladimir Mondrus. "Probability Analysis of Precision Equipment Vibration Isolation System." Applied Mechanics and Materials 467 (December 2013): 410–15. http://dx.doi.org/10.4028/www.scientific.net/amm.467.410.

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The article deals with probability analysis for a vibration isolation system of sensitive equipment. Vibration isolation system is subjected to external base vibrations due to ambient oscillations (background noise). Considering Gauss distribution for ambient vibrations, we estimate the probability when the relative displacement of isolated mass will still be lower than the vibration criteria. The problem is solved in three-dimensional space, evolved by the system parameters damping and natural frequency. According to this probability distribution, the chance of exceeding vibration criteria fo

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2

Smith, Michael Reaugh, and Frank Bradley Stamps. "Vibration isolation system." Journal of the Acoustical Society of America 105, no. 4 (1999): 2073. http://dx.doi.org/10.1121/1.426803.

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3

Heertjes, Marcel Francois, and Jan-Gerard Cornelis Van Der Toorn. "Vibration Isolation System." Journal of the Acoustical Society of America 129, no. 4 (2011): 2353. http://dx.doi.org/10.1121/1.3582194.

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4

Platus, David L. "Vibration isolation system." Journal of the Acoustical Society of America 94, no. 2 (1993): 1177. http://dx.doi.org/10.1121/1.406935.

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5

Platus, David L. "Vibration isolation system." Journal of the Acoustical Society of America 97, no. 3 (1995): 2013. http://dx.doi.org/10.1121/1.412026.

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6

Jurevicius, M., V. Vekteris, V. Turla, A. Kilikevicius, and G. Viselga. "Investigation of the dynamic efficiency of complex passive low-frequency vibration isolation systems." Journal of Low Frequency Noise, Vibration and Active Control 38, no. 2 (2019): 608–14. http://dx.doi.org/10.1177/1461348418822230.

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In this study, the theoretical and experimental investigations of the dynamics of complex passive low-frequency vibration systems are described. It is shown that a complex system consisting of a vibrating platform, an optical table and a vibration isolation system of quasi-zero stiffness loaded by a certain mass may isolate low-frequency vibrations in a narrow frequency range only. In another case, the system does not isolate vibrations; it even operates as an amplifier. The frequencies that ensure the top efficiency of the vibration damping system of quasi-zero stiffness were established.

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7

Li, Shan, Liang Xu, and Yu Qi Wang. "The Research of COMAS Vibrating Conveyor Noise Reduction." Applied Mechanics and Materials 184-185 (June 2012): 583–86. http://dx.doi.org/10.4028/www.scientific.net/amm.184-185.583.

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In a cigarette silk production line of a cigarette factory, the noise of vibrating conveyor not only endangers the health of workers’ listening, but also reduces work efficiency. In this paper, the modal of the frame was analyzed with the ANSYS software. The analysis results show that the frame has torsion vibration and swing. These vibrations will bring adverse effects and noise. Through designing a vibration isolation system on the vibrating conveyor, the reasonableness and effectiveness of the isolation component were proved with static and dynamic analysis of the vibration isolation system

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8

Tanaka, N., and Y. Kikushima. "On the Hybrid Vibration Isolation Method." Journal of Vibration and Acoustics 111, no. 1 (1989): 61–70. http://dx.doi.org/10.1115/1.3269824.

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For the purpose of isolating the vibration transmission from machines to soil and vice versa, this paper presents a new active vibration isolation method, that is, a hybrid vibration isolation method capable of isolating the vibration in the whole frequency range. The hybrid isolation method contains the following three characteristics: (1) a low-pass filter of a conventional elastic support method; (2) a high-pass filter of an active vibration isolation method; (3) suppression of a resonant peak due to an elastic support by a servo damper method; First, this paper presents the principle of th

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9

Tanaka, N., and Y. Kikushima. "A Study of Active Vibration Isolation." Journal of Vibration and Acoustics 107, no. 4 (1985): 392–97. http://dx.doi.org/10.1115/1.3269278.

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For the purpose of suppressing ground vibration produced by vibrating machines, such as forging hammers, press machines, etc., this paper presents an active vibration isolation method. Unlike conventional isolators, the active isolator proposed in this paper permits rigid support of the machines. First, the principle of the active isolation method is shown, and the system equations are derived. Secondly, the characteristics and the design parameters of the active isolation system are presented. Thirdly, from the point of view of the feedforward control method, the dynamic compensators are desi

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10

Mofidian, S. M. Mahdi, and Hamzeh Bardaweel. "Displacement transmissibility evaluation of vibration isolation system employing nonlinear-damping and nonlinear-stiffness elements." Journal of Vibration and Control 24, no. 18 (2017): 4247–59. http://dx.doi.org/10.1177/1077546317722702.

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Undesired oscillations commonly encountered in engineering practice can be harmful to structures and machinery. Vibration isolation systems are used to attenuate undesired oscillations. Recently, there has been growing interest in nonlinear approaches towards vibration isolation systems design. This work is focused on investigating the effect of nonlinear cubic viscous damping in a vibration isolation system consisting of a magnetic spring with a positive nonlinear stiffness, and a mechanical oblique spring with geometric nonlinear negative stiffness. Dynamic model of the vibration isolation s

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11

Alujević, Neven, Damjan Čakmak, Hinko Wolf, and Marko Jokić. "An inerter-based active vibration isolation system." MATEC Web of Conferences 148 (2018): 11001. http://dx.doi.org/10.1051/matecconf/201814811001.

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This paper presents a theoretical study on passive and active vibration isolation schemes using inerter elements in a two degree of freedom (DOF) mechanical system. The aim of the work is to discuss basic capabilities and limitations of the vibration control systems at hand using simple and physically transparent models. Broad frequency band dynamic excitation of the source DOF is assumed. The purpose of the isolator system is to prevent vibration transmission to the receiving DOF. The frequency averaged kinetic energy of the receiving mass is used as the metric for vibration isolation quality

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12

Kaul, Sudhir. "Planar Dynamics of a Motorcycle: Influence of Vibration Isolation System Nonlinearity." International Journal of Acoustics and Vibration 25, no. 4 (2020): 597–608. http://dx.doi.org/10.20855/ijav.2020.25.41733.

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This paper investigates the influence of the nonlinearities of a vibration isolation system on the planar dynamics of a motorcycle. The use of a nonlinear isolation system is often necessitated by design and packaging constraints. Although the use of a vibration isolation system is uncommon in motorcycles, it is used in some cases to enhance ride comfort by mitigating vibrations transmitted to the rider due to shaking forces. In such cases, the handling of the motorcycle can be influenced due to the coupled dynamics of the rear unsprung mass and the swing arm. In this paper, a stochastic analy

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13

Li, Shu Ying, Rui Huo, Xing Ke Cui, Cui Ping Liu, and Dao Kun Zhang. "Dynamic Analysis of Nonlinear Vibration Isolation System Based on Flexible Foundation." Advanced Materials Research 1030-1032 (September 2014): 766–69. http://dx.doi.org/10.4028/www.scientific.net/amr.1030-1032.766.

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In this paper,a general dynamic model of the isolation coupled system which is composed of isolation object,nonlinear vibration isolation support,and flexible foundation is established,calculated method of applying vibration power flow to analyze isolation effectiveness is studied.Further more,as an calculation example,a air spring vibration isolation system of HS-700 engines is numerically simulated.Designs several low-frequency nonlinear vibration isolators and analyzes its vibration isolation effect.It discusses the effect of the vibration isolator parameters on the transmitted power flow o

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14

Platus, David L. "Damped vibration isolation system." Journal of the Acoustical Society of America 98, no. 2 (1995): 685. http://dx.doi.org/10.1121/1.413606.

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15

Marshall, Phillip. "Active vibration isolation system." Journal of the Acoustical Society of America 94, no. 6 (1993): 3532. http://dx.doi.org/10.1121/1.407184.

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16

Carter, Sam D. "Vibration isolation mounting system." Journal of the Acoustical Society of America 99, no. 2 (1996): 643. http://dx.doi.org/10.1121/1.414578.

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17

Li, Shaohua, Guizhen Feng, and Quan Zhao. "Design and Research of Semiactive Quasi-Zero Stiffness Vibration Isolation System for Vehicles." Shock and Vibration 2021 (June 16, 2021): 1–22. http://dx.doi.org/10.1155/2021/5529509.

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The vehicle-mounted equipment is easy to be disturbed by external vibration excitations during transportation, which is harmful to the measurement accuracy and performance of the equipment. Aiming at the vibration isolation of the vehicle-mounted equipment, a semiactively controlled quasi-zero stiffness (QZS) vibration isolator with positive and negative stiffness is proposed. The vertical spring is paralleled with a magnetorheological (MR) damper, and the semiactive on-off control scheme is adopted to control the vibration. The analytical expression of the isolator’s displacement transmissibi

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18

Ren, Yafeng, Shan Chang, Geng Liu, Liyan Wu, and Haiwei Wang. "Vibratory Power Flow Analysis of a Gear-Housing-Foundation Coupled System." Shock and Vibration 2018 (June 28, 2018): 1–13. http://dx.doi.org/10.1155/2018/5974759.

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The marine gearbox is usually installed on a vibration isolation system in order to reduce oscillation transmitted to the ship foundation. However, researches on vibration transmission in the gear-housing system and isolation system are currently independent. With the increasing requirement of lower vibration, a coupled model needs to be built to control the vibration propagation from a view of the whole system. Considering the mesh transmission error excitation of a gear pair, a flexible gear-housing-foundation coupled impedance model is constructed in this paper, and the vibratory power flow

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19

Wen, Huabing, Wei Liu, Junhua Guo, Kun Zhang, Yang Li, and Yue Liu. "Design and Experiment of Inerter-Rubber Vibration Isolator Based on Parallel Inerter-Spring-Damper System." Journal of Ship Production and Design 37, no. 03 (2021): 205–14. http://dx.doi.org/10.5957/jspd.09180033.

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Since an inerter has been widely used in the field of vibration isolation, the combination of the inerter and the rubber part inevitably becomes a trend. In this work, a parallel inerter-spring-damper system (II-ISD) was introduced and analyzed for its performance on vibration isolation. Then, the optimal inertance-mass ratio and the frequency ratio at the minimum transmissibility were obtained. Based on the II-ISD system, an integrated vibration isolator was designed where the rubber part paralleled to the inerter, which was named as the inerter-rubber vibration isolator (IR). Then, its mecha

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20

Guo, Linchuan, Xu Wang, Rang-Lin Fan, and Fengrong Bi. "Review on Development of High-Static–Low-Dynamic-Stiffness Seat Cushion Mattress for Vibration Control of Seating Suspension System." Applied Sciences 10, no. 8 (2020): 2887. http://dx.doi.org/10.3390/app10082887.

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This review focuses on studying passive vibration isolation techniques and their applications. Advantages and disadvantages of different vibration isolation techniques will be compared in order to find an innovative method to reduce seating suspension system vibration and improve the ride comfort of vehicles’ drivers. Quasi-zero stiffness (QZS) isolators of high-static–low-dynamic stiffness are found to have good application prospects in low-frequency vibration isolation. In order to improve the isolation performance of the seating suspension system, a specially made seat cushion will be studi

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21

Harmoko, Hendri, Fook Fah Yap, Nader Vahdati, and Chuan Li. "Design and Analysis of Shock and Random Vibration Isolation of Operating Hard Disk Drive in Harsh Environment." Shock and Vibration 16, no. 2 (2009): 143–54. http://dx.doi.org/10.1155/2009/959714.

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An effective vibration isolation system is important for hard disk drives (HDD) used in a harsh mechanical environment. This paper describes how to design, simulate, test and evaluate vibration isolation systems for operating HDD subjected to severe shock and random vibrations based on military specifications MIL-STD-810E. The well-defined evaluation criteria proposed in this paper can be used to effectively assess the performance of HDD vibration isolation system. Design concepts on how to achieve satisfactory shock and vibration isolation for HDD are described. The concepts are tested and fu

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22

Zhanlong, Li, Sun Dagang, Qin Yuan, Zhang Wenjun, and Sun Bao. "Stiffness-Damping Matching Modelling for Vibration Isolation System of Roadheader ECB." International Journal of Acoustics and Vibration 25, no. 1 (2020): 54–61. http://dx.doi.org/10.20855/ijav.2020.25.11514.

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The electronic control box (ECB) is a key and precise component of a roadheader. The vibration of the ECB is an increasingly prominent issue as the machine capacity grows. In order to promote the isolation effect of the ECB, a whole-body vibration model considering the cutting effect is derived, based upon which the stiffness-damping matching strategy for the ECB isolator is acquired. For engineering application, the tubular constrained damping isolator (TCDI) is developed based on the constrained damping theory and the matching strategy. The theoretical results show that the isolation effect

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23

Qu, Di, Xiandong Liu, Guangtong Liu, Yifan Bai, and Tian He. "Analysis of vibration isolation performance of parallel air spring system for precision equipment transportation." Measurement and Control 52, no. 3-4 (2019): 291–302. http://dx.doi.org/10.1177/0020294019836122.

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Precision equipment is usually accompanied with vibrations during road or railway transportation. Sometimes the vibration exceeds the given limit, leading to the damage of the equipment. It is necessary to control the vibration during the transportation. However, it is still difficult to adjust the parameters of a designed vibration isolation system for the transportation of different precision equipment under various road conditions. Aiming at satisfying the vibration isolation requirements of different precision equipment, this paper proposes a parallel air spring vibration isolation system

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24

Yang, Wen Xia, Tian Qi Song, and Rong Jin Shi. "Study on a New Seismic Isolation System Based on Dynamic Test." Applied Mechanics and Materials 638-640 (September 2014): 1873–79. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.1873.

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A new seismic isolation system entirely different from wildly used Laminated Rubber seismic isolator model was suggested. Vibration table test on the Plexiglas model of the suggested seismic-isolation (S-I) system was carried out. The results show that the seismic force transferred to the superstructure is only about one-tenth of the ground vibrating.

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25

Park, Yeon-Hyeok, Mun-Shin Jo, Eung-Shik Lee, and Hyun-Ung Oh. "Performance Enhancement of Spaceborne Cooler Passive Launch and On-Orbit Vibration Isolation System." International Journal of Aerospace Engineering 2020 (August 4, 2020): 1–14. http://dx.doi.org/10.1155/2020/6017957.

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A spaceborne cryogenic cooler induces undesirable microvibration disturbances during its on-orbit operation, which is one of the main sources that degrades the image quality of submeter-level high-resolution observation satellites. Several types of vibration isolation systems based on passive approaches have been developed for reducing the microvibration of the cooler. A coil-spring-type passive vibration isolation system developed in a previous study has shown excellent performance in both launch vibration and on-orbit microvibration isolation. To improve the capability of the conventional co

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26

Gao, M., S. P. Tian, R. He, Y. Wang, and Q. S. Chen. "Numerical Analysis on the Ground Vibration Isolation of Duxseal." Advances in Civil Engineering 2019 (December 24, 2019): 1–10. http://dx.doi.org/10.1155/2019/6507465.

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A new kind of vibration screening material, Duxseal, with a high damping ratio is proposed to be used as an active vibration barrier in the free field. To investigate the influence of width, thickness, and embedded depth of using Duxseal on vibration reduction, numerical studies are performed using a three-dimensional (3D) semianalytical boundary element method (BEM) combined with a thin-layer method (TLM). The isolation effectiveness of Duxseal in ground vibration is also compared with the traditional wave impeding block (WIB). The numerical results show that Duxseal performed exceedingly wel

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27

Yang, Xiao Lan, Ji Feng Liu, Bing Zhi Kong, Xiao Lin Jia, Xiao Feng Yang, and Biao Huang. "Vibration Isolation Analysis of Vibrating Screen with Two-Mass and High Energy." Applied Mechanics and Materials 427-429 (September 2013): 112–15. http://dx.doi.org/10.4028/www.scientific.net/amm.427-429.112.

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To break through the drawbacks of the one-mass vibrating screen like plugging screen, high noise and etc., a new vibration screen with two-mass and high energy which could generate transient high vibration intensity was analyzed. To meet the requirements of energy-saving and system stability, a spring with nonlinear and hard features was used in the main vibration system. In this case, the springs stiffness could change along with the vibration intensity. The stiffness of the vibration isolation spring could be determined by analyzing the vibration isolation coefficient, and then the hollow cy

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28

Sun, Mengnan, Zhixu Dong, Guiqiu Song, Xingwei Sun, and Weijun Liu. "A Vibration Isolation System Using the Negative Stiffness Corrector Formed by Cam-Roller Mechanisms with Quadratic Polynomial Trajectory." Applied Sciences 10, no. 10 (2020): 3573. http://dx.doi.org/10.3390/app10103573.

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The vibration isolator equipped with a negative stiffness corrector (NSC) excels at vibration isolation, but its stiffness often presents complex nonlinearity which needs to be approximated in calculation. To avoid the harmful effects of approximate stiffness, the NSC formed by the cam-roller mechanism with a quadratic polynomial trajectory (QCRM) is proposed to construct the vibration isolation system. From the inherent geometrical relationship in the structure, the generation mechanism of high-static-low-dynamic stiffness is analyzed, and the quasi-zero stiffness (QZS) condition of the syste

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29

Griffin, Steve, Joel Gussy, Steven A. Lane, Benjamin K. Henderson, and Dino Sciulli. "Virtual Skyhook Vibration Isolation System." Journal of Vibration and Acoustics 124, no. 1 (2001): 63–67. http://dx.doi.org/10.1115/1.1421353.

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This work presents and demonstrates a passive isolation system that offers the performance of a skyhook damper, but without the need of an inertial reference. This “virtual skyhook” isolation system can be used to reduce the transmission of base excitations to a structure. An analysis of the concept is presented, and model predictions are compared to experimental measurements for a simple test structure. The results demonstrate that the proposed isolation system significantly attenuates transmissibility at resonance without the penalty of increased transmissibility at higher frequencies, which

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30

Zhang, Guan Jun, Xiang Zhu, Ran Xu, and Tian Yun Li. "Vibration Isolation Characteristics of Euler Strut Spring Used in Low Frequency Vibration Isolation System." Applied Mechanics and Materials 248 (December 2012): 475–80. http://dx.doi.org/10.4028/www.scientific.net/amm.248.475.

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Recently, the Euler strut is used as the supporting spring in the low frequency isolation. An Euler spring is a column or strut of steel material which is compressed elastically beyond its buckling load, which makes the ratio of the isolated mass to the mass of the supporting spring maximum, and greatly increasing the internal resonant frequencies of the isolator. In this research, the unique mechanical properties and the expressions of the displacement transmissibility of the Euler strut are deduced. The influences of structural parameters of the strut on the stiffness and vibration isolation

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31

Kaul, Sudhir. "Influence of a Vibration Isolation System on Planar Dynamics of a Motorcycle." International Journal of Acoustics and Vibration 25, no. 1 (2020): 96–103. http://dx.doi.org/10.20855/ijav.2020.25.11603.

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This paper examines a model to investigate the impact of a vibration isolation system on the planar (in-plane) dynamics of a motorcycle. While it is not very common, a vibration isolation system is used in some motorcycles to mitigate vibrations resulting from the shaking forces of the engine. For such layouts, the powertrain is assembled to the frame through the vibration isolation system that typically consists of two to four isolators. It is critical to comprehend the influence of the isolation system on the overall dynamic characteristics of the motorcycle due to the coupled dynamics of th

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32

TAKAHASHI, Ryutaro. "Vibration Isolation System for Mirrors." Journal of the Vacuum Society of Japan 54, no. 12 (2011): 610–13. http://dx.doi.org/10.3131/jvsj2.54.610.

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33

Kirkham, Edward E. "Machine tool vibration isolation system." Journal of the Acoustical Society of America 101, no. 6 (1997): 3234. http://dx.doi.org/10.1121/1.418303.

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34

Tobias, Jaromir. "Vibration isolation support mounting system." Journal of the Acoustical Society of America 92, no. 5 (1992): 3025. http://dx.doi.org/10.1121/1.404343.

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35

Richman, S. J., J. A. Giaime, D. B. Newell, R. T. Stebbins, P. L. Bender, and J. E. Faller. "Multistage active vibration isolation system." Review of Scientific Instruments 69, no. 6 (1998): 2531–38. http://dx.doi.org/10.1063/1.1148954.

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36

Nemoto, Hirotomi. "Active vibration isolation support system." Journal of the Acoustical Society of America 122, no. 3 (2007): 1313. http://dx.doi.org/10.1121/1.2781414.

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37

Telford, Kenneth N., and Chris M. Paavola. "Shock and vibration isolation system." Journal of the Acoustical Society of America 120, no. 2 (2006): 575. http://dx.doi.org/10.1121/1.2336663.

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38

Praveen Shenoy, K., Abhishek Kumar Singh, K. Sai Aditya Raman, and K. V. Gangadharan. "Experimental investigation of torsional vibration isolation using Magneto Rheological Elastomer." MATEC Web of Conferences 144 (2018): 01007. http://dx.doi.org/10.1051/matecconf/201814401007.

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Rotating systems suffer from lateral and torsional vibrations which have detrimental effect on the roto-dynamic performance. Many available technologies such as vibration isolators and vibration absorbers deal with the torsional vibrations to a certain extent, however passive isolators and absorbers find less application when the input conditions are dynamic. The present work discusses use of a smart material called as Magneto Rheological Elastomer (MRE), whose properties can be changed based on magnetic field input, as a potential isolator for torsional vibrations under dynamic loading condit

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39

Yingli, Li, and Xu Daolin. "Force transmissibility of floating raft systems with quasi-zero-stiffness isolators." Journal of Vibration and Control 24, no. 16 (2017): 3608–16. http://dx.doi.org/10.1177/1077546317708460.

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In view of the excellent performance of a single quasi-zero-stiffness (QZS) device in vibration attenuation, this paper presents a study on a vibration isolation floating raft system constructed with a double-layer QZS mechanism. A QZS device is a typical nonlinear isolator, hence the floating raft system is a coupled highly nonlinear isolation system. To understand the behaviors and its performance in vibration attenuation, an analytical approach is developed to describe the characteristics including the mathematical relationship between amplitude–frequency, force transmissibility, and the ef

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40

Zhang, Li, Hao Chen, Yan Jue Gong, Hong Wu, and Shuo Zhang. "Isolation Performance Evaluation of Compressor Vibration Isolating Systems Based on LMS Test. Lab Signature." Applied Mechanics and Materials 130-134 (October 2011): 1220–25. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.1220.

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In order to reduce vibration and noise of the compressor used in small and medium-sized refrigeration unit, this paper designs different vibration isolating systems and carries out experiment of isolation performance evaluation based on LMS Test. Lab Signature software. The comparison results of four different vibration isolating systems show that the peak values of vibration velocity response in each system mainly appear at 25Hz, 50Hz, 75Hz and 100Hz, and the maximum velocity does not exceed 22mm/s which is less than the maximum allowed by the national standard[1]. And the Vibration Level Dif

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41

Cao, Hao, Yaopeng Chang, Jiaxi Zhou, et al. "High-Efficiency Vibration Isolation for a Three-Phase Power Transformer by a Quasi-Zero-Stiffness Isolator." Shock and Vibration 2021 (April 20, 2021): 1–11. http://dx.doi.org/10.1155/2021/5596064.

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The vibrations generated by a three-phase power transformer reduce the comfort of residents and the service life of surrounding equipment. To resolve this tough issue, a quasi-zero-stiffness (QZS) isolator for the transformer is proposed. This paper is devoted to developing a QZS isolator in a simple way for engineering practices. The vertical springs are used to support the heavy weight of the transformer, while the oblique springs are employed to fulfill negative stiffness to neutralize the positive stiffness of the vertical spring. Hence, a combination of the vertical and oblique spring can

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42

Liberman, Mikhail (Yudimovich). "Investigation of Efficiency of Vibration Isolation for Cabins of Self-Propelled Machines." Journal of Low Frequency Noise, Vibration and Active Control 15, no. 4 (1996): 157–60. http://dx.doi.org/10.1177/026309239601500403.

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A method for calculation of the efficiency of vibration isolating systems, which are used in self-propelled machines, is presented. The influence of parameters of vibration isolating systems (masses and stiffnesses of foundation, load and elastic elements of vibration isolators, losses of oscillatory energy in elements of system) on efficiency of vibration isolation is determined. Good agreement is found between theoretical and experimental results. Results of experimental research for vibration isolating systems, which are used in real machines (excavator and tractor), are presented.

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43

Zhang, Li, Hao Chen, Yan Jue Gong, and Jing Wang. "Experimental Modal Analysis of Compressor Vibration Isolating System Based on LMS Test.Lab." Applied Mechanics and Materials 121-126 (October 2011): 3283–88. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3283.

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In order to reduce vibration and noise of the compressor used in small and medium-sized refrigeration unit, this paper designs different vibration isolating systems and carries out experimental modal analysis based on LMS Test. Lab Impact Testing software. The comparison results of modal parameters of four different vibration isolating systems show that the natural frequency of single-layer vibration isolating system is higher than that of non-isolation system and effectively avoids the second order resonance frequency. Furthermore the natural frequency of double-layer vibration isolating syst

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44

Bednarz, Jarosław. "The New Methodology for Assessing of the Applicability of Elastomeric Materials in the Vibration Isolation Systems of Railway Lines." Archives of Acoustics 41, no. 3 (2016): 573–78. http://dx.doi.org/10.1515/aoa-2016-0055.

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Abstract The technical requirements for the determination of physical parameters of vibration isolating material have not been standardized in Europe and Poland yet, which significantly hinders the ability to compare vibration isolating materials offered on the market. Therefore, there is a need for establishing a norm that could be applied both for the determination of the physico-mechanical properties of elastic vibration isolation elements in rail transport for domestic and foreign producers as well as in their selection for application in a specific vibration isolation system. The paper pr

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45

Lei, Xiaofei, Chengjun Wu, and Hengliang Wu. "A novel composite vibration control method using double-decked floating raft isolation system and particle damper." Journal of Vibration and Control 24, no. 19 (2017): 4407–18. http://dx.doi.org/10.1177/1077546317724967.

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This paper presents a composite vibration control method that uses a double-decked floating raft isolation system and particle dampers to control the severe vibration of a heavy compressor set. In view of the structural characteristics of the compressor set, a mechanical impedance method is employed to investigate the acceleration transfer ratios of the double-decked floating raft isolation system, and to design three isolating schemes. Numerical results indicate that the particle damping technology does not disturb the isolating performance of the double-decked floating raft isolation system

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Yang, Li Hua, Jing Jun Lou, and Shi Jian Zhu. "Researches on Nonlinear Hybrid Vibration Isolation System." Advanced Materials Research 823 (October 2013): 222–27. http://dx.doi.org/10.4028/www.scientific.net/amr.823.222.

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In this paper, the dynamics of nonlinear hybrid vibration isolation system is carried out for a qualitative analysis, based on the algorithm of synovial variable structure the control model of hybrid vibration isolation system is designed, and then the validity of the control model is verified by relevant examples in the condition of nonlinear stiffness. Moreover, the simulation results show that: the control performance of nonlinear hybrid vibration isolation is better than passive vibration isolation and linear vibration isolation system, and the introduction of nonlinear stiffness can effec

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Chen, Yanhao, and Zhiyi Zhang. "On the behavior and force transmissibility of a cable network isolator." Journal of Vibration and Control 25, no. 8 (2019): 1492–504. http://dx.doi.org/10.1177/1077546318824885.

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The cable network is being paid increased attention and has found application in practice as a new type of vibration isolator. Modal properties and isolation performance are important considerations for the widespread use of network isolators. In contrast with previous experiments on structural synthesis methods, this paper presents an analytical method to obtain the characteristic equation of a network structure. This method is extended to investigate the modal properties, forced vibration and vibration transmissibility of a network isolation system. In addition, the validity of these analyti

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TAKAGAMI, Teruo, and Yasuo JIMBO. "Study on an active vibration isolation system. Vibration isolation for random disturbance." Journal of the Japan Society for Precision Engineering 52, no. 5 (1986): 880–86. http://dx.doi.org/10.2493/jjspe.52.880.

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Lee, S. K. "Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise." Shock and Vibration 7, no. 5 (2000): 277–85. http://dx.doi.org/10.1155/2000/619326.

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Reduction of structure-borne noise in the compartment of a car is an important task in automotive engineering. Transfer path analysis using the vibroacoustic reciprocity technique or multiple path decomposition method has generally been used for structure-borne noise path analysis. These methods are useful for solving a particular problem, but they do not quantify the effectiveness of vibration isolation of each isolator of a vehicle. To quantify the effectiveness of vibration isolation, vibrational power flow has been used for a simple isolation system or a laboratory-based isolation system.

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Zhao, Guo Qian, Hong Tian Zhang, and Rui Guang Geng. "Modeling and Simulation of Passive Vibration Isolation System of Combustion Engine with Flexible Base." Advanced Materials Research 462 (February 2012): 419–26. http://dx.doi.org/10.4028/www.scientific.net/amr.462.419.

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Based on multi-body dynamics, finite element method and solid modeling technology, a dynamic model combined rigid bodies and flexible bodies about passive vibration isolation system of combustion engine with flexible base was built. A simulation analysis was done for a passive vibration isolation system of four-cylinder diesel supported on a flexible flat plate. Simulation result showed static balance and exciting force were same with theory calculation. Through changing support stiffness between flexible flat plate and ground, boundary condition of flexible base could be changed. And the char

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