Katholieke Universiteit Leuven

Hyundai Motor Company

Kia Motors Gorporation

Katholieke Universiteit Leuven of Ku Leuven Research & Development

Bert Pluymers

Wim Desmet

Claus Claeys

Kyoung Jin Chang

Tommaso Tamarozzi

Francesco Cosco

Frank Naets

Elke Deckers

Lucas Van Belle

Noé Geraldo Rocha De Melo Filho

A vibration reduction device having an acoustic meta structure mounted to a vehicle body and configured to block a structure-borne noise transmitted through the vehicle body may include a plurality of unit structures arranged at a predetermined interval therebetween, wherein each of the unit structures includes frame mounted to the vehicle body and configured to separate a predetermined space into a predetermined number of separate sections formed by walls of the frame; and a vibrator formed at a corner portion of each of the separate sections and each of which has a natural frequency to block a vibration transmitted from the vehicle body through the frame.

Vibration reduction device having acoustic meta structure

A method for estimating one or more of the following quantities from an electromechanical machine and/or component, the method comprising the creation of a photorealistic numerical model of the electromechanical machine or parts of it, a measurements step for combining outputs of physical sensors of which at least one is an imaging device for visualizing the external surface of the physical electromechanical machine in at least one 2-dimensional image, an estimation step combining the photorealistic numerical model and measurement step to provide an estimate of desired electromechanical quantities, wherein the estimation step is based at least on the usage of a similarity metric between the (at least one) two dimensional image of the electromechanical machine or parts of it and the images generated by the photorealistic numerical model.

Estimation of electromechanical quantities by means of digital images and model-based filtering techniques

Vibro-acoustic attenuation or reduced energy transmission. The present invention relates to devices that display frequency zones of strong vibro-acoustic attenuation or reduced energy transmission. This can be used in particular, although not necessarily solely, in applications that require lightweight materials with good mechanical properties and good vibro-acoustic response or in applications that require materials with high sound reflection, absorption or sound isolation in a certain frequency band.

Vibro-acoustic attenuation or reduced energy transmission

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Rummen, Belgium

Bert Pluymers