Experimental and numerical validation of the modal analysis of a cantilever beam using LabVIEW and finite element simulation

  • Dunia Lisbet Dominguez Galvez Universidad Estatal del Sur de Manabí
  • Gery Lorenzo Marcillo Merino Universidad Estatal del Sur de Manabí
  • Dayana Michelle Castro Chilàn Universidad Estatal del Sur de Manabí
  • Julio Cesar Pino Tarragò Universidad Estatal del Sur de Manabí
DOI: https://doi.org/10.61236/ciya.v9i2.1112
Keywords: experimental modal analysis, finite element method, numerical-experimental correlation, mechanical structures, structural validation, LabVIEW

Abstract

This study presents a cross-validation between experimental modal analysis (EMA) and numerical simulation using the finite element method (FEM) on a cantilever beam. The physical testing involved a National Instruments CompactDAQ system and LabVIEW software, with impact excitation using an instrumented hammer and signal acquisition through piezoelectric accelerometers. The numerical model was built in SolidWorks and simulated using Autodesk Inventor Nastran and LISA. The comparison of natural frequencies revealed strong agreement between both approaches, with relative errors below 12% across the first five modes. The validated procedure, tested on a simple structure, demonstrates potential for extension to the dynamic analysis of more complex systems, such as mechanical components, buildings, or bridges.This approach offers a feasible and cost-effective alternative for structural validation in academic, industrial, and diagnostic applications

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References

.Ewins, D. J. (2000). Modal testing: Theory, practice and application (2.ª ed.). Research Studies Press.

.Rao, S. S. (2011). Mechanical vibrations (5.ª ed.). Pearson.

.Chopra, A. K. (2012). Dynamics of structures (4.ª ed.). Prentice Hall.

.Nuñez, A. G. (2005). Modal Assurance Criterion as a tool for structural model updating. Journal of Sound and Vibration, 283, 269–294. https://doi.org/10.1016/j.jsv.2004.04.036

.Brehm, M., Weber, P., & Maas, S. (2020). Model updating and validation of dynamic structural behavior using measured modal data. Mechanical Systems and Signal Processing, 138, 106586. https://doi.org/10.1016/j.ymssp.2019.106586

.Sohn, H., & Farrar, C. R. (2001). Damage diagnosis using time series analysis of vibration signals. Smart Materials and Structures, 10(3), 446–451. https://doi.org/10.1088/0964-1726/10/3/303

.Zhang, H., et al. (2021). An improved MAC-based approach for mode shape correlation and structural damage localization. Journal of Sound and Vibration, 492, 115790. https://doi.org/10.1016/j.jsv.2020.115790

.Ramírez, L., & Cueva, A. (2022). Experimental and numerical correlation in structural dynamics of cantilever beams using low-cost equipment. Engineering Structures, 253, 113681. https://doi.org/10.1016/j.engstruct.2021.113681

.González, J., et al. (2023). Modal testing in resource-constrained environments: Methodological adaptations and educational applications. Measurement, 213, 112708. https://doi.org/10.1016/j.measurement.2022.112708

.Law, S. S., & Zhu, X. Q. (2005). Modeling and updating of a cantilever beam using experimental modal data. Journal of Sound and Vibration, 285(3), 715–736. https://doi.org/10.1016/j.jsv.2004.09.007

.PCB Piezotronics Inc. (2019). Accelerometers Technical Guide. Depew, NY.

.National Instruments. (2020). LabVIEW Platform Overview [Tech. Rep.]. Austin, TX.

.Autodesk Inc. (2021). Inventor Nastran Simulation Guide. San Rafael, CA.

LISA FEA. (2022). User Manual and Modal Analysis Guide (ver. 8.0).

Published
2025-07-09
How to Cite
Dominguez GalvezD. L., Marcillo MerinoG. L., Castro ChilànD. M., & Pino TarragòJ. C. (2025). Experimental and numerical validation of the modal analysis of a cantilever beam using LabVIEW and finite element simulation. Ciencias De La Ingeniería Y Aplicadas, 9(2), 200-208. https://doi.org/10.61236/ciya.v9i2.1112
Issue
Vol. 9 No. 2 (2025)
Section
Research article

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