September is always a month of mixed feelings…we are back from holidays, we are met at work by deadlines while we try to recover from the vacation mode.
But for the structural dynamics and NVH community, it is also the month of ISMA, the International Conference on Noise and Vibration Engineering taking place from the 12th to the 14th of September. For the occasion, academic and industrial experts from all over the world meet in Leuven, Belgium, to discuss their recent findings and present their innovative methods and most interesting results. The conference is organized by the KU Leuven, but Siemens has always been a big contributor, due to its roots going deep into the noise and vibration domain and the KU Leuven Mecha(tro)nic System Dynamics (LMSD) division.
After last edition had to be held online because of COVID, we can finally meet again in person. The conference itself is not only about presenting, but about discussing and sharing results, and most importantly networking with your peers. It is the opportunity to meet again with former research colleagues, promoters, professors, and partners in R&D projects.
In Simcenter, from Siemens Digital Industry Software, we are involved in many of these research projects and we encourage our researchers to present their findings at ISMA. It is a unique opportunity to share their results with the community and for us as a company to show what will be the tools we plan to convert into software solutions in the future. It is also the perfect chance to understand what are the key topics in the NVH community and what are the main challenges engineers are struggling with across the industries.
Out of the more than 20 oral presentations on the conference program where we are the main authors and major contributors, I wanted to highlight the ones you really don’t want to miss!
Executable Digital Twin
Many of you might be familiar with the concept of the Digital Twin, but what is an Executable Digital Twin? As Herman Van der Auweraer will explain in the first presentation of this special session on Monday at 15:30, “while the digital twin has become an intrinsic part of the product creation process, its true power lies in the connectivity of the digital representation with its physical counterpart.” He will give practical industrial examples of executable digital twins. Soon afterward, Kim Branner, our partner from Technical University of Denmark, will further discuss the wind turbine demonstrator.
In the session on wind turbine dynamics on Tuesday, Silvia Vettori will showcase a novel approach to combine test data with a simulation model for estimating the loads acting on a structure without having to directly measure them.
Advances in Modal Analysis
Who said modal analysis is an old topic? Well, considering the number of papers still talking about it, I would definitely state the contrary. On Wednesday morning, Davide Mastrodicasa will present how he used a multi-cam setup with 4 cameras to get full field information on the modes of an aircraft wing mockup using Digital Image Correlation. Also on Wednesday, Bart Peeters and Peter Csurcsia will present an innovative Frequency Response Function (FRF) estimation method that does not require averaging and thus dramatically saves testing time.
Let’s also not forget about our colleagues discussing their work during the poster sessions! For example, Andre Tavares has combined modal analysis and machine learning, together with full-field measurement techniques, to automatically detect damage on structures. For those dealing with nonlinear dynamics, one of the problems is to understand where the nonlinear behavior is happening. To automate this process, Giancarlo Kosova has developed a method relying on traditional FRF testing approaches, combined with orthogonal projection.
Frequency-Based Substructuring and Component-based TPA
In recent years, Frequency-Based Substructuring and Component-based Transfer Path Analysis have regained a lot of attention in both the industrial and academic communities. Siemens has never stopped looking into this domain, and also this year we will be presenting our most recent advances in the domain.
On Monday afternoon, Fabio Bianciardi will present a joint work with Goodyear Dunlop Tires where they accurately predicted and validated road noise in multiple driving scenarios, without any physical prototype or simulation model of the vehicle. This was possible by combining Component-based TPA and Sound Synthesis technologies. On Tuesday, Nicolò Salamone will show how the same approach can be used to make a subjective assessment of the NVH behavior of an electric vehicle.
Finally, on Wednesday, Domenico Minervini will present his approach to characterize tires in-vehicle using frequency-based substructure decoupling. In this presentation, the results are validated against measurement on a preloaded tire, and the vision is to extend this technology to rolling tire scenarios.
Let’s not forget that, after the conference, our Simcenter experts will participate in the ISMA47 and ISAAC33 courses as instructors, focusing respectively on the fundamentals and recent advances of modal analysis and acoustic/NVH. This year, you will also have the option to attend the first ISAMS course on applied mechatronic simulations.
Don’t forget to visit the Siemens booth
For the entire duration of ISMA, make sure to visit our experts at booth #8, right in the center of the exhibition hall. You will be able to take a close look at SimRod, our Simcenter Digital Twin technology carrier.
And last but not least, we are looking forward to give everybody our warmest welcome at the Conference Reception, hosted in the University Hall on Monday evening, where together with KU Leuven and AB Inbev you will get a taste of belgian beers and other specialties.
So what are you waiting for? This is an event you definitely don’t want to miss!
See you next week in Leuven!