FBG sensor network in Qinghai-Tibet railway monitoring system

Zhang, Wentao; Dai, Jingyun; Sun, Baochen; Du, Yanliang

doi:10.1117/12.757277

Cited by 3 publications

(1 citation statement)

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“…Vibrations induced by trains are one of the main concerns addressed in the development of railways, especially when lines run through urban areas (1)(2)(3)(4)(5)(6)(7).…”

Section: Introductionmentioning

confidence: 99%

Use of rubber shreds to enhance attenuation of railway sub-ballast layers made of unbound aggregates

et al. 2017

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ABSTRACT:One of the approaches for solving the problem of induced vibrations in railways is by slightly modifying the materials that form the track. A study is presented of the attenuation capacity of mixes composed of granular soil and rubber shreds when used as sub-ballast (the layer located immediately below the ballast layer). Rubber shreds are obtained from scrap tyres, a troublesome waste material whose reuse and recycling is necessary. A series of mixes of granular soil and rubber shreds with rubber contents of between 1% and 10% are submitted to hammer impact tests to study their response to dynamic excitation. Results reveal that mixing rubber shreds with granular soil increases damping ratios, thus demonstrating the potential of the proposed mixes for attenuating vibration. RESUMEN: Uso de partículas de caucho para mejorar la capacidad de atenuación de capas granulares de subbalasto en ferrocarriles. Una de las posibles formas de resolver el problema de las vibraciones inducidas por el ferrocarril es llevando a cabo una ligera modificación de los materiales que forman la vía. En este artículo, se presenta un estudio de la capacidad de atenuación de mezclas compuestas por zahorras y partículas de caucho para ser usadas como sub-balasto (capa localizada bajo el balasto). Las partículas de caucho se obtienen a partir de neumáticos fuera de uso, un material problemático cuya reutilización y reciclaje es cada vez más necesario. Las mezclas de zahorra-caucho, con un contenido entre el 1% y 10%, se someten a una serie de ensayos dinámicos mediante impacto con martillo, estudiando su respuesta frente a la excitación dinámica. Los resultados revelan que la mezcla de partículas de caucho con zahorras aumenta el coeficiente de amortiguamiento, lo que muestra el potencial que poseen las mezclas propuestas para la atenuación de vibraciones.PALABRAS CLAVE: Tratamiento de residuos; Árido; Proporción de mezcla; Vibración; Aceleración ORCID ID: C. Hidalgo-Signes

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“…Vibrations induced by trains are one of the main concerns addressed in the development of railways, especially when lines run through urban areas (1)(2)(3)(4)(5)(6)(7).…”

Section: Introductionmentioning

confidence: 99%

Use of rubber shreds to enhance attenuation of railway sub-ballast layers made of unbound aggregates

et al. 2017

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Multichannel subgrade temperature acquisition system based on LabVIEW and serial communication

Zhang

Jiao

Min

et al. 2013

2013 IEEE International Conference on Automation Science and Engineering (CASE)

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Achieving long-term operation with a capacitor-driven energy storage and sharing network

Zhu

Gü

2012

ACM Trans. Sen. Netw.

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Energy is the most precious resource in sensor networks. The ability to move energy around makes it feasible to build distributed energy storage systems that can robustly extend the lifetime of networked sensor systems. eShare supports the concept of energy sharing among multiple embedded sensor devices by providing designs for energy routers (i.e., energy storage and routing devices) and related energy access and network protocols. In a nutshell, energy routers exchange energy sharing control information using their data network while sharing energy freely among connected embedded sensor devices using their energy network. To improve sharing efficiency subject to energy leakage, we develop an effective energy charging and discharging mechanism using an array of ultra-capacitors as the main component of an energy router. We extensively evaluate our system under seven real-world settings. Results indicate our charging and discharging control can effectively minimize the energy leaked away. Moreover, the energy sharing protocol can quantitatively share 113J energy with 96.82% accuracy in less than 2 seconds.

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FBG sensor network in Qinghai-Tibet railway monitoring system

Cited by 3 publications

References 0 publications

Use of rubber shreds to enhance attenuation of railway sub-ballast layers made of unbound aggregates

Use of rubber shreds to enhance attenuation of railway sub-ballast layers made of unbound aggregates

Multichannel subgrade temperature acquisition system based on LabVIEW and serial communication

Achieving long-term operation with a capacitor-driven energy storage and sharing network

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