New proposal for bogie-mounted sensors using energy harvesting and wireless communications

Ortiz, Javier Tarango; Monje, P. M.; Zabala, Nerea; Arsuaga, Mikel; Etxaniz, Josu; Aranguren, Gerardo

doi:10.1177/0954409713495017

Cited by 12 publications

(8 citation statements)

References 16 publications

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“…8 ), inertial-based vibration energy harvesting for railcar applications has only been explored in recent years. 9,10 De Pasquale et al. 9 designed an integrated electromagnetic system using a magnetic suspension energy harvester to generate electricity from freight train vibrations.…”

Section: Introductionmentioning

confidence: 99%

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Vibration energy harvesting from heavy haul railcar vibrations using a two-degree-of-freedom coupled oscillating system

Ung

Moss

Chiu

2015

Proceedings of the Institution of Mechanical Engineers, Part F:

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This paper investigates the design and fabrication of an energy-harvesting device for converting the kinetic energy of heavy haul railcar vibrations into electrical energy. The inertial-based electromagnetic generator is a two-degree-of-freedom (2-DoF) coupled oscillating system that can efficiently operate at the two dominant frequencies corresponding to unloaded and loaded railcar conditions. Vibration measurements from the field indicate the dominant frequency of the railcar at a sprung location shifts between 14.6 and 5.8 Hz for the unloaded and loaded conditions, respectively. Design and optimization was investigated using multi-physics finite element analysis (COMSOL) with sinusoidal vibration input. A prototype was developed to demonstrate that a practical amount of power can be generated using the 2-DoF coupled system. Experimental results favourably agree with model predictions, and show that more than 200 mW of output power can be generated at each dominant frequency from a 0.4 g peak sinusoidal host acceleration (where g = 9.8 m/s2). In addition measured railcar vibration was replicated using a power spectral density approach, allowing prediction to be made about the performance of the generator in the field.

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Section: Introductionmentioning

confidence: 99%

“…A design proposed by Ortiz et al. 10 for bogie-mounted sensors powered by a piezoelectric energy harvester was able to generate 6.1 mW of power from eight commercially available piezoelectric transducers.…”

Section: Introductionmentioning

confidence: 99%

Vibration energy harvesting from heavy haul railcar vibrations using a two-degree-of-freedom coupled oscillating system

Ung

Moss

Chiu

2015

Proceedings of the Institution of Mechanical Engineers, Part F:

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“…Acceleration (g) 10 15 Although a number of studies have shown that energy from vibration can be harvested to power sensors and transmission modules, 10 inertial-based vibration energy harvesting for railcar application have only been explored in recent years. 11,12 For example an integrated electromagnetic system designed by Pasquale et al using magnetic suspension energy harvester was able to generate 100 mW from a freight train travelling at 80 km/h. 11 A design proposed by Ortiz et al for bogie mounted sensors powered by piezoelectric energy harvester was able to generate 6.1 mW from eight commercially available piezoelectric transducers.…”

Section: Introductionmentioning

confidence: 98%

“…11 A design proposed by Ortiz et al for bogie mounted sensors powered by piezoelectric energy harvester was able to generate 6.1 mW from eight commercially available piezoelectric transducers. 12 When designing an energy harvester for a heavy haul rail application, it is important to realize that the dominant frequency of the railcars can change significantly between the unloaded and loaded travel condition as a result of the added mass to the system. Base driven vibration energy harvesting devices produce maximum power when the resonant frequency of the generator matches the ambient frequency of the host structure.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic energy harvester using coupled oscillating system with 2-degree of freedom

2015

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This paper presents the design and fabrication of a 2-degree of freedom vibration energy harvesting device for converting kinetic energy into electrical energy using electromagnetic transduction. The relative motion between a magnet and a conductive coil induces an electromotive force. A non uniform magnetic field design is used where an oscillating magnet is suspended by a spring-damper system. In addition the coil is suspended to serve as the second oscillating mass to effectively harvest energy at two different frequencies. The design parameters are elucidated in this paper which describes the effects of voltage cancellation due to coil phase, coil placement for optimal performance and the benefits of separating magnets using material with high permeability. The investigation was performed using multi physics finite element analysis (COMSOL) with sinusoidal vibration input. A prototype was developed to demonstrate that practical amount of power can be generated from the design. The resonant frequencies of the prototype harvester were tuned to match the dominant frequencies of the host structure (i.e. heavy haul railcars). Peak output powers of 212 mW and 218 mW were generated from sinusoidal vibration with 0.4 g peak acceleration (where g = 9.8 m/s 2 ) at 6.5 Hz and 14.5 Hz respectively.

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“…Only a few studies have reported their application in freight cars. Ortiz et al [40] reported the most relevant work that experimentally observed the performance of piezoelectric vibration energy harvesting. It was found that such devices are suitable for monitoring the freight car bogies when associated with capacitors that can maintain the power supply for the wireless sensors.…”

Section: Introductionmentioning

confidence: 99%

Optimizing strain energy extraction from multi-beam piezoelectric devices for heavy haul freight cars

Lopes

Eckert

Martins

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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Heavy haul trains used to transport commodities are generally very long and operated by a single individual. Owing to high noise levels from the rolling stock displacement, the driver cannot notice failures in the compartments. It is practically impossible to visually inspect the wagons located far from the locomotive. Sensors that can measure in-train forces may improve the train's operation, indicating potential failures and preventing accidents and derailments. However, the freight cars employed in most of the railroads are not equipped with electric power sources, making inspections unlikely. Therefore, an energy harvesting system must be developed for the sensors to avoid the need for periodic battery charging or replacement. As a high level of kinetic energy is present in the rolling stock, a vibration energy harvester (VEH) system is an acceptable alternative. Among VEH devices, multi-beam piezoelectric materials used in planar zigzag (PZ) or orthogonal spiral outer fixed (OSo) configurations can be effective alternatives. These can be powered by low-frequency strains readily available in the freight cars. This study investigates the optimum geometries of PZ and OSo aiming to increase the generated power and minimize the structure mass with a focus on their application to ore wagons. Among the optimum solutions, the OSo geometry generates the maximum power, up to 20.93 mW, which is sufficient to feed some critical devices. Conversely, the PZ configurations present the highest energy density, up to 16.595 mW/kg(m s −2) 2 , which allows for a more suitable solution to be combined in serial and/or parallel pack configurations.

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New proposal for bogie-mounted sensors using energy harvesting and wireless communications

Cited by 12 publications

References 16 publications

Vibration energy harvesting from heavy haul railcar vibrations using a two-degree-of-freedom coupled oscillating system

Vibration energy harvesting from heavy haul railcar vibrations using a two-degree-of-freedom coupled oscillating system

Electromagnetic energy harvester using coupled oscillating system with 2-degree of freedom

Optimizing strain energy extraction from multi-beam piezoelectric devices for heavy haul freight cars

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