Next Article in Journal
Impact of Stair and Diagonal Matrices in Iterative Linear Massive MIMO Uplink Detectors for 5G Wireless Networks
Previous Article in Journal
Exact Spherically Symmetric Solutions in Modified Gauss–Bonnet Gravity from Noether Symmetry Approach
Article

Study of the Vibration-Energy Properties of the CRTS-III Track Based on the Power Flow Method

School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China
*
Author to whom correspondence should be addressed.
Symmetry 2020, 12(1), 69; https://doi.org/10.3390/sym12010069
Received: 9 December 2019 / Revised: 26 December 2019 / Accepted: 29 December 2019 / Published: 1 January 2020
The vibration induced by the high-speed railway (HSR) system has been a severe problem during the construction and operation period. To investigate the vibration-energy properties of the China Railways Track System (CRTS)-III track, a vehicle-track-subgrade coupling model is developed, in which the distribution of the tangent force is symmetrical according to the FASTSIM theory, and the power flow method is utilized. What’s more, the corresponding evaluation indexes of the power flow are proposed to analyze the vibration energy of the track structure. The results reveal that the vibration energy decreases from top to bottom of the track structure among the frequency considered, and the decreasing trend is obvious. The vibration energy of the track structure is sensitive to the stiffness of fasteners. Differently, the vibration energy of the composite slab and the base slab is more sensitive to the stiffness of rubber damping pads than that of the rail. To sum up, this paper can provide a new perspective and method to study the vibration-energy properties and select the reasonable stiffness of the fasteners and the rubber damping pads of the CRTS-III track, and the proposed values of the stiffness of the fasteners and the rubber damping pads for the case under this study are 40 kN/mm and 400 MPa/m, respectively. View Full-Text
Keywords: CRTS-III track; power flow; vehicle-track-subgrade coupling dynamics; vibration-energy properties CRTS-III track; power flow; vehicle-track-subgrade coupling dynamics; vibration-energy properties
Show Figures

Figure 1

MDPI and ACS Style

Jiang, H.; Gao, L. Study of the Vibration-Energy Properties of the CRTS-III Track Based on the Power Flow Method. Symmetry 2020, 12, 69. https://doi.org/10.3390/sym12010069

AMA Style

Jiang H, Gao L. Study of the Vibration-Energy Properties of the CRTS-III Track Based on the Power Flow Method. Symmetry. 2020; 12(1):69. https://doi.org/10.3390/sym12010069

Chicago/Turabian Style

Jiang, Hanwen, and Liang Gao. 2020. "Study of the Vibration-Energy Properties of the CRTS-III Track Based on the Power Flow Method" Symmetry 12, no. 1: 69. https://doi.org/10.3390/sym12010069

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop