## 5 Conclusions
Implications for the mining industry: Our study provides valuable insights for the mining industry, underscoring the need for rigorous monitoring and maintenance programs for equipment exposed to corrosion. By effectively using spectral and wavelet analysis methods, mining equipment operators can detect early structural degradation and take preventive measures to minimise operational risks and maximise equipment lifespan. 7. Static and dynamic analyses and their limitations: Although static and dynamic analyses for natural frequencies were conducted, changes regarding the influence of the degradation of the thickness of structural resistance elements through corrosion were clearly highlighted only through spectral analysis and wavelet analysis. This aspect underscores the importance of using advanced analysis methods to detect subtle changes in the dynamic behaviour of structures. 8. Influence of steel cables and material deposits: In mining equipment with bucket wheels, the raising and lowering of the arm are performed through steel cables (position 2, Figure 9), which attenuate vibrations in the supporting structure of the equipment. This makes it more challenging to detect corrosion through static analysis or natural frequency analysis, as the steel cables act as an elastic damper. Additionally, material deposits from the excavation process contribute to this difficulty, emphasising the necessity of using advanced methods such as spectral and wavelet analysis for accurate evaluation. Conceptualisation, S.M.R., F.V. and M.T. ; methodology, F.V., M.T., S.M.R. and S.D. ; software, F.V. ; validation, F.V., M.T. and S.D. ; formal analysis, F.V., M.T., S.M.R. and S.D. ; investigation, S.M.R. and F.V; resources, F.V. ; data curation, F.V. and S.M.R. ; writing--original draft preparation, F.V. and M.T. ; writing--review and editing, M.T. ; visualisation, S.D. ; supervision, S.M.R. All authors have read and agreed to the published version of the manuscript. Funding: This research received no external funding. Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable. Data Availability Statement: The raw data supporting the conclusions of this article will be made available by the authors on request. Conflicts of Interest: The authors declare no conflicts of interest. References  
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