OPTIMIZATION OF THE AUXILIARY-BEAM SYSTEM IN RAILWAY BRIDGE VIBRATION MITIGATION USING FEM SIMULATION AND GENETIC ALGORITHMS

被引：0

作者：

Baldonedo, J. G. ^{[1
]}

Segade, A. ^{[1
]}

Lopez-Campos, J. A. ^{[1
]}

Casarejos, E. ^{[1
]}

Fernandez, J. R. ^{[2
]}

Vilan, J. A. ^{[1
]}

Collazo-Rodriguez, J. ^{[1
]}

Lopez-Lago, M. ^{[1
]}

机构：

[1] Univ Vigo, Dept Mech Engn, Vigo, Spain

[2] Univ Vigo, Dept Appl Math 1, Vigo, Spain

来源：

PROCEEDINGS OF THE 7TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN (M2D2017) | 2017年

关键词：

optimization; railway bridge; auxiliary-beam system; damping; moving loads; resonance phenomena; FEM; genetic algorithms; DAMPERS;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This work studies the mitigation of vertical vibrations in railway bridges by using a so called 'auxiliary beam' system and a finite element method for evaluation. The bridge was modelled as a unidimensional and simply supported beam, in order to run simulations as fast as possible, while keeping the main characteristics of the bridge and producing the key parameters. The studied parameters were the damping coefficient and the moment of inertia of the auxiliary beam. We defined a non-dimensional combination of the parameters in order to generalize the results to any generic case. In our work we combined ANSYS (R) and MATLAB software to implement a genetic algorithm that optimized the damping characteristics of the system. Finally, a detailed comparison of the original undamped bridge and the bridge with the damping system was carried out.

引用

页码：113 / 122

页数：10

共 8 条

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