PDF
Full
Longsheng Wang received his Ph.D degree from Beijing Jiaotong University in 2016. He is currently working at Signal & Communication Research Institute, China Academy of Railway Sciences Corporation Limited. His current research interests include Railway Signal Control, Cloud-Based Signalling System, auomatic train operation and model predictive control.
Outline
To address the encapsulation challenge of fiber Bragg grating (FBG) sensors in complex railway environments, this paper designs a clip-on composite sensor enabling installation-friendly deployment and long-term axle counting system monitoring.
Wheel-rail mechanical behavior was simulated via finite element analysis (FEA) to determine optimal sensor placement. A clip-on composite sensor was subsequently engineered. Stress transduction efficacy was validated through FEA quantification of stress responses at the axle counter location. Findings - The proposed FBG axle counter integrates temperature compensation and anti-detachment monitoring as well as advantages such as simplified installation with minimal maintenance and sustained operational reliability. It effectively transmits stress, yielding a measured strain of 39 μe under static loading conditions without sensitivity-enhancing elements.
This study performs FEA of wheel-rail stress distribution and engineers the dual-slot composite sensor, FEAwas conducted to quantify the stress magnitude at the axle sensor position of the dual-slot composite sensor. Additionally, FEA was performed on sensors with different structural configurations, including adjustments to the axle sensor position, number of slots and axle position. The results confirmed that the designed composite sensor exhibits superior stress transfer characteristics.
PDF
1
0
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
