PSI - Issue 75

Mohamed El Yazrhi et al. / Procedia Structural Integrity 75 (2025) 262–275 Mohamed El Yazrhi , Jean-Yves Disson / Structural Integrity Procedia (2025)

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• The possibility to detect different usage conditions as rolling on a highway or on a track. This allows to perform a prediction taking into account a specified mission profile. In other words, these capabilities allow the prediction of the remaining lifetime. The authors have assessed three different statistical methods to carry out a prognostic, i.e. the ability to use the equipment for an upcoming defined mission profile. These methods focused on the FDS have been assessed with vibration signals measured on a vibrating shaker, and then with a vibration signal measured on a vehicle driving on a highway. Based on the FDS calculated from the measured vibration during the first period, the predicted FDS for the following period are compared with the ‘ monitored FDS’ calculated from the measured signal during the following period. The differences are below few percent, which shows the robustness of the prediction methods. These works will be completed with the assessment of another statistical method based on Kappa distribution as described in [1] and also with other vibration signals with a higher variability, measured on a vehicle rolling on a track for example. Finally, the ‘measured ERS’ will be introduced to calculate the predicted ERS and XRS. References [1] Colin, B. (2023). Maintenance prévisionnelle des équipements critiques, embarqués sur systèmes d’armes terrestres. Nondestructive Testing . [2] Disson, J.-Y., & Colin, B. (2018). New standard XP X50-144 related to mechanical environment strength proof. Implementation and first feedback. sciencedirect . [3] Gao, Q., Yang, B., Huo, J., & Han, J. (2022). Embedded real-time and in-situ fatigue life monitoring sensor with load types identification. sciencedirect . [4] Gao, Z., Sun, Z., & Liang, S.-x. (2020). Probability density function for wave elevation based on Gaussian mixture models. researchgate . [5] Hübler, C., & Rolfes, R. (s.d.). Probabilistic Temporal Extrapolation of Fatigue Damage of Offshore Wind Turbine Substructures Based on Strain Measurements. [6] inspectioneering. (s.d.). Overview of Fatigue (Material) . Récupéré sur inspectioneering: https://inspectioneering.com/tag/fatigue [7] McNeill, S. (2008). Implementing the Fatigue Damage Spectrum and Fatigue Damage Equivalent Vibration Testing. [8] Mohammad, G., & James, P. (2019). Random vibration fatigue life analysis of electronic packages by analytical solutions and Taguchi method. sciencedirect . [9] XP X50-144-3 Demonstration of the resistance to environmental factors – Design and execution of environmental tests. (2021). Implementation of the tailorism process in the mechanical environment .