Influence of Ballast Track on Vertical Response of Multi-span Simply-Supported Bridges Under Railway Traffic

2020 ◽  
pp. 1-13
Author(s):  
M. D. Martínez-Rodrigo ◽  
A. Romero ◽  
E. Moliner ◽  
J. Chordà ◽  
P. Galvín
Keyword(s):  
Simply Supported ◽  
Railway Traffic ◽  
Ballast Track

Simply supported FPEDs connected by springs for broadband energy harvesting

2020 ◽  
Vol 64 (1-4) ◽  
pp. 201-210
Author(s):  
Yoshikazu Tanaka ◽  
Satoru Odake ◽  
Jun Miyake ◽  
Hidemi Mutsuda ◽  
Atanas A. Popov ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Evaluation Method ◽  
Energy Harvester ◽  
Vibrational Energy ◽  
Functional Materials ◽  
Vibration Energy ◽  
Theoretical Evaluation ◽  
Vibration Energy Harvester ◽  
Polyvinylidene Difluoride ◽  
Simply Supported

Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.

Analysis of Longitudinal Resistance Characteristics according to the Vertical Loads of Ballast Track on a Bridge

2019 ◽  
Vol 7 (2) ◽  
pp. 239-244
Author(s):  
Geon Soo Shin ◽  
Jong Chan Park ◽  
Jyung Hwan Min ◽  
Kyung Min Yun ◽  
Nam Hyoung Lim ◽  
...  
Keyword(s):  
Ballast Track ◽  
Longitudinal Resistance

Parametric Study of a Simply Supported Composite Plate Using Finite Element Method

2014 ◽  
Vol 4 (4) ◽  
pp. 26-33
Author(s):  
P.Deepak Kumar ◽  
◽  
Ishan Sharma ◽  
P.R. Maiti ◽  
◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parametric Study ◽  
Composite Plate ◽  
Simply Supported ◽  
Element Method
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