Theoretical Solutions for Static and Dynamic Shakedown of Cohesive-Frictional Materials Under Moving Loads

2017 ◽  
pp. 269-279
Author(s):  
Juan Wang ◽  
Shu Liu ◽  
Xiaojun Tang
Keyword(s):  
Moving Loads ◽  
Frictional Materials

Control of Vibrations due to Moving Loads on Suspension Bridges

2006 ◽  
Vol 11 (3) ◽  
pp. 293-318 ◽  
Author(s):  
M. Zribi ◽  
N. B. Almutairi ◽  
M. Abdel-Rohman
Keyword(s):  
Bridge Deck ◽  
Suspension Bridge ◽  
Lyapunov Theory ◽  
Dynamic Responses ◽  
Suspension Bridges ◽  
Control Force ◽  
Moving Loads ◽  
Hydraulic Actuator ◽  
Long Span ◽  
Suspended Cables

The flexibility and low damping of the long span suspended cables in suspension bridges makes them prone to vibrations due to wind and moving loads which affect the dynamic responses of the suspended cables and the bridge deck. This paper investigates the control of vibrations of a suspension bridge due to a vertical load moving on the bridge deck with a constant speed. A vertical cable between the bridge deck and the suspended cables is used to install a hydraulic actuator able to generate an active control force on the bridge deck. Two control schemes are proposed to generate the control force needed to reduce the vertical vibrations in the suspended cables and in the bridge deck. The proposed controllers, whose design is based on Lyapunov theory, guarantee the asymptotic stability of the system. The MATLAB software is used to simulate the performance of the controlled system. The simulation results indicate that the proposed controllers work well. In addition, the performance of the system with the proposed controllers is compared to the performance of the system controlled with a velocity feedback controller.

Assessment of Resonance Effects on Railway Bridges under Moving Loads

2017 ◽  
Vol 5 (4) ◽  
pp. 38
Author(s):  
Gharad A.M. ◽  
Sonparote R. S. ◽  
◽  
Keyword(s):  
Moving Loads ◽  
Railway Bridges ◽  
Resonance Effects

Application of the reciprocity theorem for the evaluation of vibrations generated by moving loads

2020 ◽  
pp. 33-40
Author(s):  
Nguyen Tron Tam ◽  
◽  
E.N. Kurbatsky ◽  
Nguyen Anh Tuan ◽  
◽  
...  
Keyword(s):  
Reciprocity Theorem ◽  
Moving Loads

scholarly journals Shakedown of Layered Pavements under Repeated Moving Loads

2014 ◽  
Author(s):  
Shu Liu ◽  
Juan Wang ◽  
Hai-Sui Yu ◽  
Dariusz Wanatowski
Keyword(s):  
Moving Loads

Moving loads on beams on Winkler foundations with passive frictional damping devices

2017 ◽  
Vol 152 ◽  
pp. 211-225 ◽  
Author(s):  
R. Toscano Corrêa ◽  
F.M.F. Simões ◽  
A. Pinto da Costa
Keyword(s):  
Moving Loads ◽  
Frictional Damping
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