Transient analysis of controlled flexible structures with viscoelastic damping material

1996 ◽  
Author(s):  
Xuqiang Wu ◽  
Bingen Yang
Keyword(s):  
Transient Analysis ◽  
Flexible Structures ◽  
Viscoelastic Damping ◽  
Damping Material ◽  
Viscoelastic Damping Material

scholarly journals Frequency response characteristics of objective lens actuators for optical disc drives using viscoelastic damping material

2015 ◽  
Vol 81 (824) ◽  
pp. 14-00561-14-00561
Author(s):  
Katsuhiko KIMURA ◽  
Manabu OCHI ◽  
Ryuichiro MIZUNO ◽  
Hidenao SAITO ◽  
Toshihiko SUGIURA
Keyword(s):  
Frequency Response ◽  
Viscoelastic Damping ◽  
Objective Lens ◽  
Optical Disc ◽  
Response Characteristics ◽  
Damping Material ◽  
Viscoelastic Damping Material ◽  
Frequency Response Characteristics

Application Study of Viscoelastic Damping Material for the Anti-Galloping of Overhead Transmission Lines

2014 ◽  
Vol 884-885 ◽  
pp. 269-272 ◽  
Author(s):  
Na Sun ◽  
Kuan Jun Zhu ◽  
Bin Liu ◽  
Sheng Chun Liu ◽  
Liang Liu
Keyword(s):  
Mechanical Properties ◽  
Transmission Lines ◽  
Dynamic Mechanical Properties ◽  
Viscoelastic Damping ◽  
Application Study ◽  
Performance Requirements ◽  
Damping Material ◽  
Viscoelastic Damping Material ◽  
Good Energy ◽  
Physics Experiment

Based on the galloping mechanism of transmission line, it is determined to use viscoelastic damping material and energy effects of TMD to suppress galloping. The dynamic mechanical properties of viscoelastic damping material is studied, with the operating environment of the transmission lines, high-and-low-temperature physics experiment is carried out, while the experimental study on mechanical properties is carried out with the developed viscoelastic damping elements. It is showed that the viscoelastic material meets the anti-galloping device performance requirements for materials, it has a good energy consumption effect, suitable for application to anti-galloping of transmission lines.

Experimental investigation of the dissipation characteristic of sandwich structures with periodically perforated viscoelastic damping material core

2019 ◽  
Vol 25 (14) ◽  
pp. 2008-2024 ◽  
Author(s):  
X. Q. Zhou ◽  
L. Wang ◽  
D.Y. Yu ◽  
C. Y. Zhang
Keyword(s):  
Energy Dissipation ◽  
Wave Energy ◽  
High Frequency ◽  
Sandwich Structures ◽  
Experimental Results ◽  
Viscoelastic Damping ◽  
Engineering Practice ◽  
Damping Material ◽  
Viscoelastic Damping Material ◽  
Dissipation Characteristic

Wave energy can be dissipated gradually when it is propagated in viscoelastic damping material (VDM) composite structures. In this paper, after the specimens with different opening ratios (ORs) of VDM layer are prepared, the elastic wave energy propagation and dissipation characteristic of periodically perforated VDM cored sandwich structures are investigated by an experimental method. The sandwich structures are discretized into several testing points in our experiment. When the complex velocity, equivalent effective mass, and external excitation forces have been obtained at each testing point by sensors, the energy dissipation in the sandwich structure is determined based on the energy dissipation mechanism of wave transmission in solid. The experimental results are then compared with theoretical and numerical simulation results. By analyzing the computational accuracy of theoretical and numerical results using experimental data, it is shown that high consistency between theoretical, numerical, and experimental results can be achieved, especially in the medium-frequency and high-frequency ranges. Thus, our experimental results demonstrate that periodically perforated VDM sandwich structures can be applied to engineering practice for their good performance of dissipation characteristics in the middle-frequency and high-frequency ranges.

Design of a disc-shaped viscoelastic damping material attached to a cylindrical pipe as a dynamic absorber or Houde damper

2020 ◽  
Vol 475 ◽  
pp. 115272 ◽  
Author(s):  
Satoshi Ishikawa ◽  
Katsunori Tanaka ◽  
Daiki Yano ◽  
Shinya Kijimoto
Keyword(s):  
Viscoelastic Damping ◽  
Cylindrical Pipe ◽  
Damping Material ◽  
Viscoelastic Damping Material ◽  
Dynamic Absorber

scholarly journals Variable-Order Fractional Dynamic Behavior of Viscoelastic Damping Material

2021 ◽  
Author(s):  
Zhanlong Li ◽  
Zhifei Dong ◽  
Yao Wang ◽  
Zheng Zhang ◽  
Yuan Qin
Keyword(s):  
Dynamic Behavior ◽  
Fractional Order ◽  
Loss Modulus ◽  
Maxwell Model ◽  
Viscoelastic Damping ◽  
Variable Order ◽  
Classical Dynamic ◽  
Dynamic Behaviors ◽  
Damping Material ◽  
Viscoelastic Damping Material

Abstract Viscoelastic damping material has been widely used in engineering machinery to absorb vibration and noise. In engineering, the dynamic behavior of the viscoelastic material is mainly affected by temperature and frequency. Classical dynamic behavior equations of the viscoelastic damping material have complex structures with multiple and ambiguous parameters. So a novel variable-order fractional constitutive model (VOFC) is established based on the variable-order fractional operator. Then the viscoelastic dynamic equations are derived by the Laplace transform of the VOFC model. The DMA test by the three-point bending mode is carried out at variable temperatures and frequencies and the frequency spectrum of the dynamic behaviors, i.e., the loss modulus, the storage modulus and the loss factor are obtained. Against the test data ,the VOFC model is compared with classical models such as the integer-order Maxwell model (IOM), the constant fractional-order Kelvin-Voigt model (CFK), the constant fractional-order Maxwell model (CFM) and the constant fractional-order standard linear solid model (CFS). Through the comparison , it can be found that the VOFC model can describe dynamic behaviors of the viscoelastic damping material at different temperatures and frequencies more accurately. Furthermore, the VOFC model has simpler structure and only two parameters with clearly-physical meanings.

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