Publications
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A NEW APPROACH TO OPERATIONAL MODAL ANALYSIS BASED ON MULTIVARIABLE TRANSMISSIBILITY FUNCTIONS: REVISITED Vrije Universiteit Brussel
The concept of using Scalar Transmissibility functions in Operational Modal Analysis was first introduced several years ago. It was immediately clear that using the input-spectrum independent scalar transmissibility functions for modal analysis could yield multiple significant advantages (such as the absence of any white noise assumption typical for OMA). However the use of these functions was limited in situations where multiple uncorrelated ...
Transmissibility based operational modal analysis: on the use of the pseudo inverse approach Vrije Universiteit Brussel
In recent work it has been shown that modal parameters can be identified using transmissibility functions. A method was proposed based on combining 2 transmissibility functions that were obtained during 2 different loading conditions. However in practice one in general has access to multiple possible transmissibility functions and perhaps even multiple loading conditions. Yet up till now there wasn't a general framework that stated which ...
An operational modal analysis approach based on parametrically identified multivariable transmissibilities Vrije Universiteit Brussel
In this contribution the approach to identify modal parameters from output-only (scalar) transmissibility measurements [C. Devriendt, P. Guillaume, The use of transmissibility measurements in output-only modal analysis, Mechanical Systems and Signal Processing 21 (7) (2007) 2689-2696] is generalized to multivariable transmissibilities. In general, the poles that are identified from (scalar as well as multivariable) transmissibility measurements ...
Virtual Torque Sensing: A Model-based Approach for Indirect Measurement of Dynamic Operational Loads on Mechatronic Powertrains KU Leuven
Modern mechatronic powertrains are characterized by an ever increasing power density and high-dynamic operation. In addition, high demands are put on the energy efficiency and the behaviour in terms of noise and vibrations. This is true for powertrains in industrial machines, wind turbines and vehicles. The increasingly strict requirements, together with a constant pressure on shortening development times, have led to a growing use of models in ...
A Management of Change approach for assessing and Evaluating operational Staffing Levels (MocESL) in chemical plants KU Leuven University of Antwerp
Chemical enterprises are often challenged with efficiently assessing their operational staffing levels. Unbalanced and inadequate manning levels might be financially adversarial and may even lead to (minor and major) accidents. This paper provides a framework and a roadmap to assist chemical plants in assessing and evaluating their operational staffing levels. The approach can be implemented within the entire organization or within a part ...
Operational modal analysis using ambient support excitation: an OMAX approach KU Leuven
It is shown here that measuring support responses properly in operational modal analysis pays off in terms of accuracy of the identified modal parameters. When using the support responses as inputs for system identification, they are treated as deterministic instead of stochastic quantities, which theoretically reduces the estimation error to zero when no other excitation is present. Since most often, other ambient excitation is important, the ...
A dynamic “predict, then optimize” preventive maintenance approach using operational intervention data KU Leuven Vlerick Business School
Regression versus probabilistic approach for operational data – heat demand of buildings to be connected to a district heating system Vrije Universiteit Brussel
The robust design of 5 th generation district heating and cooling (5GDHC) systems requires accurate and sufficient operational data on the energy consumption and production of the connected prosumers. Often these data requirements are not met. Historical energy-related data for buildings is sometimes no longer accessible, and if available, often limited in time span and temporal resolution. Also, technical details on the ...
Improving operational ocean color coverage using a merged atmospheric correction approach Flanders Marine Institute
High-quality satellite-based ocean color products derived from Sentinel-2/MSI and Sentinel-3/OLCI provide valuable support and insights in the management and monitoring of coastal ecosystems. The primary ocean color variable is the spectral Remote Sensing Reflectance (RRS), obtained after applying atmospheric correction (AC) on satellite products. AC algorithms, such as C2RCC and ACOLITE/DSF are all well capable of generating RRS products over ...