Expertise
- Quality modelling hints: simplification pitfalls with preloaded modal analysis. The case of pressure application for brake squeal
Modelling is an act of reality conceptualization. It is thus directly related to a simplification… Read more: Quality modelling hints: simplification pitfalls with preloaded modal analysis. The case of pressure application for brake squeal - Mode tracking and pole clustering
Undertaking vibration analysis, it is very common to characterize a system by its modes of… Read more: Mode tracking and pole clustering - When connection flexibility becomes sensitive
In the series of our posts concerning model quality and connections, constraints regularization or penalization… Read more: When connection flexibility becomes sensitive - Connections to shells in 3D models
How to properly manage connections to shells in 3D models ? Many mechanical systems use… Read more: Connections to shells in 3D models - Model verification for quality assessment – Assembly checks
How to verify that the connections in a mechanical assembly behave as intended? The increase… Read more: Model verification for quality assessment – Assembly checks
Projects
- Design upgrade of inertial base used to perform EMA in oven
Project context:SDTools regularly performs experimental modal analysis (EMA) in an oven to monitor temperature dependence.… Read more: Design upgrade of inertial base used to perform EMA in oven - Inertial base construction for vibration measurements in an oven
SDTools regularly performs Experimental Modal Analyses (EMA) in an oven to control temperature dependency. One… Read more: Inertial base construction for vibration measurements in an oven - Milling robot modal analysis using spindle-driven unbalanced excitation in context of its response nonlinearity
How to perform modal analysis of milling robot using a spindle-driven unbalanced excitation ? 🎯… Read more: Milling robot modal analysis using spindle-driven unbalanced excitation in context of its response nonlinearity - Identification of material property temperature dependency
In partnership with the “SOURCE” ANR project, SDT has been used by the DISCoH researcher’s… Read more: Identification of material property temperature dependency
Software
- SDT parametric EMA video showcase ➡️ Temperature-dependent MIMO transfers 🌡
Following up on previous post presenting our two-step standardized strategy to tackle parametric EMA, this… Read more: SDT parametric EMA video showcase ➡️ Temperature-dependent MIMO transfers 🌡 - Code consistency and documentation
OK, now that I have this SDT model, what can I do with it ?… Read more: Code consistency and documentation - Parametric Experimental Modal Analysis
A few years ago, we collaborated with the SHM team of PIMM on Experimental Modal… Read more: Parametric Experimental Modal Analysis - MDRE on spatially sparse vibration shapes
How to ease analysis of spatially sparse vibration shapes ? ❗ Vibration measurements using accelerometers… Read more: MDRE on spatially sparse vibration shapes - Reduced model animation on reduced mesh through cuts (slices)
Are you suffering from slow animations with large FEM results? Do you need to navigate… Read more: Reduced model animation on reduced mesh through cuts (slices)
Conferences
- SURVISHNO 2025
How to efficiently qualify/classify/analyze squeal events from full-brake industrial test campaigns? 👉 Squeal qualification/design processes👉… Read more: SURVISHNO 2025 - Non-linear viscoelastic damping: designing tests needed for transient simulation of a rail track
How to design vibration tests exhibiting viscoelasticity, hyperelasticity and rate-independent hysteresis behavior of rail pads… Read more: Non-linear viscoelastic damping: designing tests needed for transient simulation of a rail track - ISMA 2024 : Hybrid FEM/test twin building, an electric engine case history
SDTools is involved in several communications at the ISMA24 (International Conference on Noise and Vibration… Read more: ISMA 2024 : Hybrid FEM/test twin building, an electric engine case history - Inter-noise 2024 : brake squeal functional LPV model
Guilherme Malacrida Alves, a PhD student at SDTools in collaboration with Hitachi Astemo, will present… Read more: Inter-noise 2024 : brake squeal functional LPV model - EuroBrake 2024: let’s meet there!
EuroBrake is happening next week in Mainz and SDTools will be attending with Guilllaume Vermot… Read more: EuroBrake 2024: let’s meet there!
Papers
- Squeal occurrence classification using a Harmonic Balance Vector signal model
We are happy to share with you our last results published in the Journal of… Read more: Squeal occurrence classification using a Harmonic Balance Vector signal model - Scientific research at SDTools
SDTools is involved in vibration research at multiple levels, either through R&D projects for its… Read more: Scientific research at SDTools
Thesis
- Gaëtan Guillet’s PhD thesis kick-off: “Numerical simulation of rail irregularities”
We are happy to welcome Gaëtan Guillet to our research team! He’s joining Groupe SNCF… Read more: Gaëtan Guillet’s PhD thesis kick-off: “Numerical simulation of rail irregularities” - Guilherme Malacrida Alves’ PhD manuscript and defense
Guilherme Malacrida Alves’ final PhD manuscript (in English) and defense (in French) about “Experimental modal… Read more: Guilherme Malacrida Alves’ PhD manuscript and defense - Guilherme Malacrida Alves: PhD defense
Guilherme Malacrida Alves will defend his PhD thesis on “Experimental modal analysis of time varying… Read more: Guilherme Malacrida Alves: PhD defense
Releases
- SDT 7.6
We are pleased to announce the release of SDT 7.6 For more details, read the release… Read more: SDT 7.6 - SDT 7.5 posted
For download, demos, … see here SDT 7.5 is compatible with MATLAB 9.4 (2018b) to… Read more: SDT 7.5 posted - SDT 7.3 postedThe major revision 7.2 was only made available as a beta version, with the stable… Read more: SDT 7.3 posted
- SDT 7.4 postedSDT 7.4 is the only version fully compatible with MATLAB 9.4 (2018b) to 9.12 (2022a)… Read more: SDT 7.4 posted
- SDT 7.1 releasedSDT 7.1 is the only version fully compatible with MATLAB 9.4 (2018b) to 9.6 (2019a)… Read more: SDT 7.1 released