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Optimisation of absorber parameters in the case of stochastic vibrations in a bridge with a deck platform for servicing pipelines

Studia Geotechnica et Mechanica
Volume 43 (2021): Issue s1 (December 2021)
By:
Open Access
|Dec 2021

Figures & Tables

Figure 1

The model of the system.
The model of the system.

Figure 2

Deflection of the structure. An absorber with parameters μ=0.05, κ=1.
Deflection of the structure. An absorber with parameters μ=0.05, κ=1.

Figure 3

Deflection of the structure without an absorber.
Deflection of the structure without an absorber.

Figure 4

Deflection of the structure in the midspan for two absorbers with different κ.
Deflection of the structure in the midspan for two absorbers with different κ.

Figure 5

Deflection of the structure in the midspan for two absorbers with different μ.
Deflection of the structure in the midspan for two absorbers with different μ.

Figure 6

Deflection of the structure without an absorber in the middle of the beam for three velocities.
Deflection of the structure without an absorber in the middle of the beam for three velocities.

Figure 7

Deflection of the structure with the absorber μ=0.05, κ=1 in the middle of the beam for three velocities.
Deflection of the structure with the absorber μ=0.05, κ=1 in the middle of the beam for three velocities.

Figure 8

The expected value of deflections in the midspan for different vehicle velocities and also for (a) different parameters μ of the absorbers and (b) different parameters κ of the absorbers.
The expected value of deflections in the midspan for different vehicle velocities and also for (a) different parameters μ of the absorbers and (b) different parameters κ of the absorbers.

Figure 9

The variance of deflections in the midspan for different vehicle velocities, and also for (a) different parameters μ of the absorbers and (b) different parameters κ of the absorbers.
The variance of deflections in the midspan for different vehicle velocities, and also for (a) different parameters μ of the absorbers and (b) different parameters κ of the absorbers.

Figure 10

Deflections in the midspan for different locations of the absorber: (a) the expected value and (b) the variance.
Deflections in the midspan for different locations of the absorber: (a) the expected value and (b) the variance.
DOI: https://doi.org/10.2478/sgem-2021-0030 | Journal eISSN: 2083-831X | Journal ISSN: 0137-6365
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Language: English
Page range: 492 - 500
Submitted on: Aug 17, 2021
Accepted on: Oct 26, 2021
Published on: Dec 5, 2021
Published by: Wroclaw University of Science and Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
urban network infrastructure,
dynamic vibration absorber (DVA),
vibration effect,
dynamic analysis,
Poisson process,
random vibration
Related subjects:
Geosciences,
Geosciences, other,
Materials sciences,
Composites,
Porous materials,
Physics,
Mechanics and fluid dynamics

© 2021 Jacek Grosel, Monika Podwórna, published by Wroclaw University of Science and Technology
This work is licensed under the Creative Commons Attribution 4.0 License.

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