Publicaties
Gekozen filters:
Gekozen filters:
Model Order Reduction and Smart Virtual Sensing for Unbounded Vibro-Acoustics Using High Order FEM and Infinite Elements KU Leuven
Two key technologies that are at the heart of the Executable Digital Twins are Model Order Reduction and Smart Virtual Sensing (SVS). The former allows the high-fidelity models to be represented in compact forms and the latter is an on-line estimator framework which allows to extend the limits of physical sensors and provide full-field data using the simulation models. Previous work from the authors established a time-stable vibro-acoustic ...
Hybrid Finite Element – Wave Based techniques for interior vibro-acoustics. Application to a large-sized vehicle model KU Leuven
Nowadays, in automotive industry, a large part of the design process takes place in a virtual environment in order to shorten the time-to-market while keeping high-quality standards. Numerous methodologies based on numerical techniques have been developed in the past decades, aimed at assessing functional performance attributes. In this paper ,the focus is on three-dimensional acoustic analysis for interior truck cabin applications in the low ...
Development of a decision supporting vibro-acoustic method to monitor implant fixation and early detect intra-operative fractures in cementless THA KU Leuven
Total Hip Arthroplasty (THA) is one of the most performed orthopedic surgeries worldwide with excellent survival rates (> 90 % after 10 years). However, a considerable number of THA need to undergo a revision mostly because of aseptic loosening. These complex revision surgeries are translated into high medical costs and physical and emotional burdens for the patient. Currently, the quality and outcome of THA procedures mainly depend on the ...
Vibro-Acoustic Performance of Locally Resonant Metamaterials with Damping KU Leuven
Over the past decades, tightening ecologic and economic requirements have urged industry to introduce lightweight design. Lightweight structures typically combine low mass with high stiffness, which impairs their noise and vibration insulation performance. This conflicts with rising customer expectations and increasingly stringent noise exposure regulations. Classical solutions to improve the vibro-acoustic performance usually rely on adding ...
Process Parameter, Geometric & Vibro-acoustic Variability: The Study of Causation in the Deep Drawing Process KU Leuven
Single-stage forming is widely used in the automobile industry due to shorter cycle times, cost-effectiveness and ease of implementation. However, achieving the desired dimensional accuracy of a designed part still remains a challenge as complex phenomena, including springback, are associated with the manufacturing process. For this reason, the process parameters such as the blank holder force are nowadays continuously adapted within the ...
Accelerated dispersion curve calculations for periodic vibro-acoustic structures KU Leuven
Over the years, metamaterials have shown their potential in a wide range of different disciplines, e.g. optics, electromagnetics, dynamics etc. Metamaterials are, often periodic, engineered structures made of conventional materials but which exhibit properties not encountered in nature. In the field of noise and vibration, metamaterials have received increasing interest since they can obtain frequency ranges of high noise and vibration ...
Wave Based and Hybrid Methodologies for Vibro-acoustic Simulation with Complex Damping Treatments KU Leuven
In recent years, the vibro-acoustic performance of products has become a key design feature. This evolution has been instigated by growing customer expectations, who associate the sound of a product with a certain quality, and by ever tightening regulations on the noise emission levels of products and the human exposure to noise and vibrations. Another important isnbsp;trend towards lightweight materials, fuelled by an increasing ecological ...
Novel Reduction Techniques for Exterior Vibro-acoustic Models and their use in Model-based Sensing and Identification KU Leuven
The physical interaction between vibrating structures and acoustics is of paramount importance in modern society. It is encountered in many products of daily use, such as vehicles, home appliances, and musical instruments but also in industrial environments, such as an assembly line in a factory. On the one hand, sound can be considered pleasant or useful in the context of music or communication. On the other hand, undesired sound, or noise, can ...
Efficient dispersion curve computations for periodic vibro-acoustic structures using the (generalized) Bloch mode synthesis KU Leuven
Periodic structures such as metamaterials and phononic crystals hold potential as promising compact and lightweight solutions for noise and/or vibration attenuation in targeted frequency ranges. The performance of these structures is usually investigated by means of dispersion curves. The input for dispersion curve computations is often a finite element model of the corresponding unit cell. Nowadays, the vibration and noise attenuation of the ...