Projects
Identification of interior EV sound sources through virtual sensing KU Leuven
This project will work on the identification of new noise sources in electric vehicles (EV). Shifting from internal combustion engines (ICE) to electric engines has led to different noise profiles, increasing the importance of noise sources that were possibly secondary in ICE vehicles. In order to design and implement effective noise control measures, it is important to identify noise sources that might cause possible disturbances. However, ...
PUF Constructions with Limited Information Leakage KU Leuven
Silicon Physical Unclonable Functions (PUFs) arose from MIT research more than 15 years ago with great fanfare and promise. The idea was to use tiny electronic circuits to detect manufacturing variation on chip instead of using external test equipment, and produce a large number of challenge/response pairs (CRPs) that can be used to uniquely authenticate a silicon device. Unlike a normal mathematical function, a PUF is a physical function. ...
Physically Consistent Vibroacoustic Substructuring involving Continuous Interfaces: Applied to Concept Phase Car Body Optimisation KU Leuven
Over the past decades, in order to keep up with both the legislations governing noise emissions and the growing customer expectations, the continuous search for improved noise and vibration performances has been playing a key-role in the development process of new vehicles. However, to meet these expectations in today’s competitive environment, it is not enough simply to bring a better product into the market. You have to bring it sooner and ...
Model-Based Analysis and Reduction of Spread in Wind Turbine Gearbox Performance and Testing KU Leuven
This PhD research focuses on the development, usage and validation of numerical techniques to investigate and eliminate source of spread in gearbox performance and testing. This research is particularly valuable in the wind energy industry, where wind turbine noise is strictly regulated and gearboxes are designed such that tonal noise remains below prescribed levels. Non-anticipated variations in gearbox manufacturing and assembly can lead to ...
Vibro-Acoustics of Rotating Electric Machines: Prediction, Validation and Solution KU Leuven
Within the context of electric mobility and the need for lower cost electric machines, emerging designs gain interests with less usage of expensive permanent magnets; for instance reluctance machines. However high tonal and unpleasant acoustic noise from structural resonances may occur. These resonances are generally excited by electromagnetic forces induced within the rotating magnetic field of the machine. Hence the accurate prediction of ...
Auralization of Moving Sources: Application to Pass-by and Fly-over Real-Time Sound Synthesis KU Leuven
The impact of traffic noise on the health of individuals living in urban areas is a major concern.
Initiatives aimed at reducing traffic noise are put in place by imposing maximum noise levels on new combustion engine vehicles or minimum noise levels on electrical vehicles.
In addition to respecting sound level limits, an increasing need for satisfying sound quality requirements calls for new measurement and simulation methodologies ...
Full-field camera measurements for structural and vibro-acoustic system analysis KU Leuven
Cameras are an aspiring technology for structural and vibro-acoustic system analysis. They offer full-field, transient, and contactless displacement measurements. However, measurement noise is one of the main limitations preventing their widespread application.
This thesis proposes new noise reduction algorithms taking advantage of geometry and physics information. By approximating with local polynomial functions (polynomial filtering) ...
Experimental Dynamic Substructuring: Towards Robust FRF-based Decoupling Strategies KU Leuven
Wind turbine manufacturers and their suppliers are faced with increasing constraints on the noise and vibration requirements of their products, while development time and costs are under pressure. One of the problems in the current development is the end-of-line validation of prototype gearboxes. It is observed that the strict limits imposed on the end-of-line test rig do not always lead to acceptable vibration levels when the gearboxes are ...
Design and Characterization of Quantum Sillicon-Based Devices for Semiconducting Qubit Implementation. KU Leuven
Quantum computers (QC) are predicted to solve relevant problems beyond the reach of even the most powerful supercomputers today. However, to do so, their essential building blocks called quantum bits, or qubits, need to scale up in both quantity and quality. Qubits formed by the spin states of electrons or holes, captured in semiconductor quantum dots are a promising candidate for such large-scale QC. These spin qubits exhibit extremely long ...