Design of a Tubular Permanent Magnet Actuator for Active Lateral Secondary Suspension of a Railway Vehicle

Yoon, Jun Ho; Kim, Dongwook; Park, No Cheol; Park, Young Pil

doi:10.3390/app7020152

Cited by 2 publications

(8 citation statements)

References 36 publications

(42 reference statements)

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“…The natural convection coefficient was 3.3 W/m 2 K in our previous test. 4 The other behavior features forced coolant convection attributable to the behavior of the cooling water. Here, we ignored the air-forced convection effect because the effect thereof was much smaller than that of water-forced convection.…”

Section: Flow Characteristics Inside the Circular Water Channelmentioning

confidence: 99%

“…In our previous research, 4 the active lateral secondary suspension was optimally designed using a moving magnet-type Halbach magnet array and slotted core, which can generate a higher thrust force because of the magnetic field generated by the interaction between the magnets and cores. The translator consisted of segmented magnets, a yoke, and a shaft as shown in Figure 1(a).…”

Section: Experimental Setup and Configurationmentioning

confidence: 99%

“…Semi-active suspension systems using variable electro-hydraulic proportional valve dampers 2 or magneto-rheological dampers 3 have been developed and applied to the whole train system. In addition to semi-active suspension, active lateral secondary suspension using permanent magnets 4 and pneumatic or oil hydraulic actuators have been studied. Lateral acceleration has been drastically decreased and the riding comfort improved using active lateral suspension systems.…”

Section: Introductionmentioning

confidence: 99%

“…Of these, hydraulic actuators can be easily installed in the narrow space between the car body and the bogie. 4 However, it is difficult for them to attenuate various vibrations induced by sources exhibiting wide frequency spectra due to a low control bandwidth. Other disadvantages include a serious leakage problem, and a high sensitivity to temperature.…”

Section: Introductionmentioning

confidence: 99%

“…In our previous research, we explored air cooling effects in high-speed trains (using forced convection). 4 However, it is difficult to apply air convection cooling to a real high-speed train because of the difficulty involved in making an effective air channel between the car body and the bogie. This narrow gap contains complex structures that block air flow and decrease the passing air speed despite the fact that the train is operating at high speed.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the thermal effect of a tubular permanent magnet actuator with a water cooling channel for active lateral suspension of a high-speed train

Kim

Woo

Park

2019

Advances in Mechanical Engineering

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Worldwide, high-speed rail is becoming an increasingly popular and efficient means of transport. However, increasing the speed of a train leads to major reductions in stability and ride comfort. Here, we develop a tubular permanent magnet actuator to overcome these problems. To increase actuator thrust, the electromagnetic circuit requires a high current and, thus, becomes hot. We use a water cooling system with 12 straight copper channels to reduce the temperature. We calculate heat transfer coefficients using empirical convection correlations between laminar flow in the channels and experimental results. The predicted, tube surface temperatures correlated well with the experimental data. We evaluated the effects of flow rate and initial water temperature on various design parameters. The cooling system allowed application of a current greater than 100 A, developing a thrust force of over 8000 N. Thus, the system was robust under harsh operating conditions. We measured the thrust and cogging forces and the performance of the water cooling system in terms of the maximum acceptable temperature. The thrust was high and the cogging torque was low, greatly reducing lateral vibration; the temperature remained below the acceptable maximum.

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Section: Flow Characteristics Inside the Circular Water Channelmentioning

confidence: 99%

Section: Experimental Setup and Configurationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigation of the thermal effect of a tubular permanent magnet actuator with a water cooling channel for active lateral suspension of a high-speed train

Kim

Woo

Park

2019

Advances in Mechanical Engineering

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ECMS 2019 Proceedings edited by Mauro Iacono, Francesco Palmieri, Marco Gribaudo, Massimo Ficco

2019

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The 33rd edition of the ECMS conference, a widely consolidated interdisciplinary forum for simulation and modeling researchers and practitioners that keeps its reference position year after year, brings with it two novelties: a new name and a new form of publication. In fact, to better catch in the name the actual situation of participants, the European Council for Modelling and Simulation decided to rename the event as "ECMS International Conference on Modelling and Simulation". This year, we also start a new book series of annual volumes, namely "Communications of the ECMS", which replaces the name "Proceedings" in order to acknowledge the recognition and reputation of the scientific community of simulation. This year the chosen conference venue is in Caserta, Italy. The Università degli Studi della Campania "Luigi Vanvitelli", previously known as Seconda Università degli Studi di Napoli, a state-owned university founded in 1990 with the explicit mission of meeting the cultural demand of the population living in the northern part of Campania. Caserta, famous for its wonderful royal palace, whose facilities will host the conference, is a city with a long history, already inhabited in the 5th century BC. It flourished in the middle age and then in the XVI-XVII century AD, surrounded by a geographical area rich of historical relevance that was under Roman influence.The university is characterized by its diffusion over the territory of the province of Caserta, having its 16 departments located in Caserta, Aversa and Santa Maria Capua Vetere, and Napoli, in which its roots can be found: the most of the departments are located in historical landmarks, that have been saved and recovered by specific agreements and funding. More than 25000 students from Italy and abroad study at Vanvitelli University enrolled in bachelor, master and PhD. curricula, taught as well in Italian as in English, and covering different aspects of mathematics, physics, data analytics, engineering, law, economics, political sciences, medicine, nursery, biotechnology, pharmacy, environmental sciences, cultural heritage, literature, psychology, tourism, design and architecture.We are honored to offer, besides the scientific program of the conference, consisting in more than 65 high quality accepted papers, a rich and various series of social events, as usual for the spirit of this conference.

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Design of a Tubular Permanent Magnet Actuator for Active Lateral Secondary Suspension of a Railway Vehicle

Cited by 2 publications

References 36 publications

Investigation of the thermal effect of a tubular permanent magnet actuator with a water cooling channel for active lateral suspension of a high-speed train

Investigation of the thermal effect of a tubular permanent magnet actuator with a water cooling channel for active lateral suspension of a high-speed train

ECMS 2019 Proceedings edited by Mauro Iacono, Francesco Palmieri, Marco Gribaudo, Massimo Ficco

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