Suppression of the stationary maglev vehicle–bridge coupled resonance using a tuned mass damper

Zhou, Danfeng; Li, Jie; Hansen, Colin H.

doi:10.1177/1077546311430716

Cited by 37 publications

(13 citation statements)

References 10 publications

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“…Considering only the Maglev control system, the problems include vehicle-track coupling dynamic modeling [30,31], vibration control [32][33][34], suspension control [35,36], fault diagnosis and tolerance control [37][38][39][40][41], hybrid magnet study, etc. [42,43].…”

Section: Development and Discussion Of Maglev Key Technologiesmentioning

confidence: 99%

Maglev Train Overview

Liu

2015

Springer Tracts in Mechanical Engineering

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IntroductionMaglev (means magnetic C levitation) is a method of propulsion that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles, and bearings. With the Maglev, a vehicle is levitated a short distance away from a guideway by using magnets to create both lift and thrust. In general, Maglev trains move more smoothly and somewhat more quietly than wheeled mass transit systems. Their non-reliance on traction and friction means that acceleration and deceleration can surpass that of wheeled transports and they will be protected from the weather. At very high speeds of the conventional wheeled trains, the wear and tear from friction along with the hammer effect from wheels on rails will accelerate equipment deterioration and prevent mechanically based train systems from routinely achieving higher speeds. On the contrary, Maglev tracks have historically been found to be much more expensive to construct, but require less maintenance and have lower ongoing costs. Maglev can transport passengers and freight over long distances at speeds of hundreds of miles per hour. Maglev promises to be a major mode of transport in the twenty-first century, even more important than autos, trucks, and airplanes [1].The term "Maglev" refers not only to the vehicles but also to the railway system, specifically designed for magnetic levitation and propulsion. All operational implementations of Maglev technology have the minimal overlap with wheeled train technology and have not been compatible with conventional rail tracks. Considering the fact that they cannot share existing infrastructure, these Maglev systems must be designed as complete transportation systems. In addition, the vacuum tube train systems might hypothetically allow Maglev trains to attain speeds in a different order of magnitude. While no such tracks have been built commercially yet, there are efforts being made to study and develop "super-Maglev" trains.

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Section: Development and Discussion Of Maglev Key Technologiesmentioning

confidence: 99%

Maglev Train Overview

Liu

2015

Springer Tracts in Mechanical Engineering

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“…The experimental results demonstrated that the method had validity and self-adaptability for the engineering flexible structure's remnant vibration suppression under certain conditions. Zhou et al (2013) investigated the principle of the stationary vehiclebridge coupled resonance and proposed a tuned mass damper (TMD) to eliminate the coupled resonance. The procedure for seeking out a group of suboptimal parameters of the TMD was also proposed and it has been indicated that the designed TMD can completely suppress the vehicle-bridge coupled resonance.…”

Section: Introductionmentioning

confidence: 99%

Horizontal pseudo-dynamic experimental study on long-span reticulated structures with multi-dimensional earthquake isolation and mitigation devices

Shi²,

Guo

2013

Journal of Vibration and Control

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A multi-dimensional earthquake isolation and mitigation device for long-span reticulated structures is a type of newly invented passive control device. In order to acquire the earthquake isolation and mitigation effect of the new devices on long-span reticulated structures under horizontal excitations, the pseudo-dynamic tests for a 1:3 modeled long-span reticulated structure with a size of 3 m Â 3 m with and without the devices are carried out. Horizontal dynamic responses of the structure with and without the devices are compared, and the earthquake isolation and mitigation effect of the devices is evaluated under the horizontal excitations. It can be shown from the experimental and finite element numerical results that the proposed new devices have a good effect on earthquake isolation and mitigation on long-span reticulated structures under horizontal earthquake excitations.

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“…However, there are still some issues to be solved urgently, such as the vehicle-bridge stationary self-excited vibration [4,5]. When the maglev train is suspended on some special bridges with minor weight per meter, the maglev train and bridges may vibrate vertically and continuously, which degrade the stability of the levitation control and the ride comfort.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Validated Control Strategy of Maglev Vehicle-Bridge Self-Excited Vibration

Wang

Zhou

et al. 2017

Applied Sciences

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This study discusses an experimentally validated control strategy of maglev vehicle-bridge vibration, which degrades the stability of the suspension control, deteriorates the ride comfort, and limits the cost of the magnetic levitation system. First, a comparison between the current-loop and magnetic flux feedback is carried out and a minimum model including flexible bridge and electromagnetic levitation system is proposed. Then, advantages and disadvantages of the traditional feedback architecture with the displacement feedback of electromagnet y E and bridge y B in pairs are explored. The results indicate that removing the feedback of the bridge's displacement y B from the pairs (y E − y B ) measured by the eddy-current sensor is beneficial for the passivity of the levitation system and the control of the self-excited vibration. In this situation, the signal acquisition of the electromagnet's displacement y E is discussed for the engineering application. Finally, to validate the effectiveness of the aforementioned control strategy, numerical validations are carried out and the experimental data are provided and analyzed.

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Suppression of the stationary maglev vehicle–bridge coupled resonance using a tuned mass damper

Cited by 37 publications

References 10 publications

Maglev Train Overview

Maglev Train Overview

Horizontal pseudo-dynamic experimental study on long-span reticulated structures with multi-dimensional earthquake isolation and mitigation devices

An Experimental Validated Control Strategy of Maglev Vehicle-Bridge Self-Excited Vibration

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