Vibration Suppression of Railway Car Body with Piezoelectric Elements (A Study by Using a Scale Model)

Hansson, Joel; Takano, Masatoshi; Takigami, Tadao; Tomioka, Takahiro; Suzuki, Yasufumi

doi:10.1299/jsmec.47.451

Cited by 22 publications

(10 citation statements)

References 7 publications

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“…The same method for improving the ride comfort through reducing the flexible vibrations in the railway vehicles carbody by means of the piezoelectric elements attached on the carbody is also submitted by Hansson [13]. The efficiency of the method is both theoretically and experimentally researched.…”

Section: Passive Damping Structural Approachesmentioning

confidence: 99%

Approaches for reducing structural vibration of the carbody railway vehicles

Dumitriu

Cruceanu

2017

MATEC Web Conf.

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Abstract.Reducing the weight of the railway vehicles stands as a decisive rule in their design, entailed by higher velocities, the need to consume less energy and lower the manufacturing costs, along with the maximization of the use of loads on the axle. Once complied with this rule, the vehicle flexibility increases and leads to an easy excitation of the structural vibrations in the carbody, with an impact upon the ride comfort in the railway vehicle. For a better ride comfort in lightweight railway vehicles, both vibration isolation approaches and structural damping approaches have been introduced. The paper herein submits a brief review of the main structural damping approaches aiming to reduce the amplitude in the carbody structural vibrations, based on the use of the piezoelectric elements in passive control schemes. The paper outcomes show the potential of the presented methods concerning the reduction of the flexible vibrations in the carbody and the ride comfort improvement.

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Section: Passive Damping Structural Approachesmentioning

confidence: 99%

Approaches for reducing structural vibration of the carbody railway vehicles

Dumitriu

Cruceanu

2017

MATEC Web Conf.

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“…Hansson et al [13], for example, modelled the vehicle carbody as an elastically supported Bernoulli-Euler beam in their study for a method to improve the riding comfort by reducing vertical flexural vibrations in railway carbodies via piezoelectric elements. These elements are attached on the carbody to convert the vibration energy into electrical energy, which can be dissipated in a shunt circuit.…”

Section: Models Of 'Flexible Carbody' Typementioning

confidence: 99%

Modelling of structural flexibility of the railway vehicles carbody

Dumitriu

Crăciun

2017

MATEC Web Conf.

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Abstract. The accuracy in the models of railway vehicles in the ride comfort evaluation mainly derives from the modelling of the carbody structural flexibility. The former part of the paper herein reviews the 'flexible carbody' type methods used to represent the carbody structural flexibility in the approaches targeting the identification of certain methods to reduce the flexible vibrations in the carbody so as to improve the ride comfort of the railway vehicles. What seems to apply are the simple beam models such as Euler -Bernoulli or Timoshenko, structure type models and detailed multi-body, finite-element models or combinations of multi-body and finite-elements models. The latter part will feature a contrastive analysis regarding the comfort index coming from the numerical simulations based on 'rigid carbody' and 'flexible carbody' original models. It is highlighted that the comfort performance of a railway vehicle evaluated on the basis of a 'rigid carbody' mode is overrated.

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“…Uncoupled ordinary differential equations representing the flexible motions of the beam can be obtained by integrating equation (7) over the beam length…”

Section: Fig 2: Piezoelectric Actuatormentioning

confidence: 99%

“…Passive structural damping was designed via shunted piezoelectric elements by electric circuits to dissi pate the vibration energy of vehicle body [7,16]. Kamada et al [9] used piezoelectric stack transducers in shunt damp ing for vibration suppression of a railway vehicle.…”

Section: Introductionmentioning

confidence: 99%

Combining active structural damping and active suspension control in flexible bodied railway vehicles

Zheng

Zolotas

Goodall

2016

2016 35th Chinese Control Conference (CCC)

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There is a desire to design lightweight railway vehicle bodies for future high speed trains. Previously, suppression of structural vibration of the flexible lightweight vehicle body was attempted via use of active suspensions (conventional actuators) or by structural damping via piezoelectric actuators, with the aim being to improve the ride quality. In a railway vehicle the typical active suspension setup comprises front and rear suspension conventional actuators, while adding more macro-actuator elements to minimise structural vibrations can substantially impact vehicle weight and location considerations. In this paper, we show that piezoelectric actuator control can provide complementary action to active suspensions. Decentralized control is adopted for combined active structural damping and active suspension design via Linear Quadratic Gaussian (LQG) method and modal control with skyhook damping respectively. The side-view model of a flexible-bodied railway vehicle integrated with piezoelectric actuators and appropriate sensor outputs is derived and the placement of the piezoelectric actuators and sensors is addressed via structural norms. It is shown that vibrations of both the flexible modes and rigid modes are suppressed effectively.This suggests that with the combined approach, control by both piezoelectric actuators and suspension actuators could be used in a more efficient way to address vibrations in light railway vehicle bodies.

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Vibration Suppression of Railway Car Body with Piezoelectric Elements (A Study by Using a Scale Model)

Cited by 22 publications

References 7 publications

Approaches for reducing structural vibration of the carbody railway vehicles

Approaches for reducing structural vibration of the carbody railway vehicles

Modelling of structural flexibility of the railway vehicles carbody

Combining active structural damping and active suspension control in flexible bodied railway vehicles

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