Results 261 to 270 of about 361,673 (283)

Periodically distributed piezoelectric patches optimization for waves attenuation and vibrations damping

The Journal of the Acoustical Society of America, 2015
The deformation of a structure can be understood as a superposition of waves which are induced by the excitation and reflected by the boundaries. According to this regard, attenuations of waves can lead to a strong reduction of the structural response and prevent energy to be propagated.
Manuel Collet, Yu Fan, Mohamed Ichchou
openaire   +1 more source

Dislocation damping and the ultrasonic attenuation in the normal and superconducting states of pure tin

Cryogenics, 1976
Abstract Ultrasonic attenuation studies have been carried out both in the normal and superconducting states in pure (99.9999%) single crystals of tin containing various amounts of dislocations. At low pulse amplitude the normal state attenuation is effectively independent of the dislocation density.
K.D. Chaudhuri, H.L. Das
openaire   +1 more source

Damped multichannel singular spectrum analysis for 3D random noise attenuation

Geophysics, 2016
ABSTRACT Multichannel singular spectrum analysis (MSSA) is an effective algorithm for random noise attenuation in seismic data, which decomposes the vector space of the Hankel matrix of the noisy signal into a signal subspace and a noise subspace by truncated singular value decomposition (TSVD).
Weilin Huang, Runqiu Wang, Yangkang Chen, Huijian Li, Shuwei Gan   +4 more
openaire   +1 more source

OPTIMIZATION OF PASSIVE SHUNTED DAMPING CONFIGURATIONS FOR VIBRATION ATTENUATION

10th ECCOMAS Thematic Conference on Smart Structures and Materials, 2023
Beatriz Luis, José Madeira, Aurélio Araújo   +2 more
openaire   +1 more source

Absolute Measurements of Ultrasonic Attenuation Using Damped Nondestructive Testing Transducers

Journal of Testing and Evaluation, 1984
Abstract This paper reviews the method for making absolute ultrasonic attenuation measurements by means of nondestructive testing transducers and liquid buffer columns or solid buffer rods. The principle is that the transducer must be separated from the specimen so that the transducer cannot influence the echoes in the specimen. Then the
openaire   +1 more source

Damping ratio identification using attenuation responses extracted by time series semantic segmentation

Mechanical Systems and Signal Processing, 2022
Ye Xia, Zhiqiang Shang, Limin Sun
exaly  

Damped sparse representation for seismic random noise attenuation

SEG Technical Program Expanded Abstracts 2017, 2017
Weilin Huang, Runqiu Wang, Xiaoqing Chen, Shaohuan Zu, Yangkang Chen   +4 more
openaire   +1 more source

Quantifying damping coefficient and attenuation at different frequencies for graphene modified polyurethane by drop ball test

Polymer Testing, 2021
Samireh Vahid, Homayoun Hadavinia, Neil A Williams   +2 more
exaly  

Attenuated Surface Dual Modes on Plasma Slab: Landau Damping

IEEE Transactions on Plasma Science, 2022
H. H. Pajouh, M. Shahmansouri, M.-J. Lee, Y.-D. Jung   +3 more
openaire   +1 more source

Effect of vacancies on the damping attenuation of Mn–Cu–Al–0∼3Sn alloys at room temperature

Materialpruefung/Materials Testing, 2023
Yonggang Xu
exaly