Método para el diagnóstico de rodamientos utilizando la complejidad de Lempel-Ziv

  • Diego L. Guarín-Lopez Universidad Tecnológica de Pereira
  • Álvaro A. Orozco-Gutierrez Universidad Tecnológica de Pereira
  • Edilson Delgado-Trejos Instituto Tecnológico Metropolitano
Keywords: Bearings diagnosis, Lemple-Ziv Complexity, vibration signals analysis

Abstract

The presence of a fault in a bearing makes the mechanical system evolve from a weakly nonlinear dynamic to a strong non-linear dynamic; therefore the linear methods in time and frequency are not suitable for bearing diagnosis. This article uses a novel nonlinear method for bearing diagnosis, which uses the complexity measure suggested by Lempel and Ziv to characterize the vibration signals. The main advantage of this method over other nonlinear analysis techniques is that it does not require the reconstruction of an attractor; therefore it is suitable for on-line analysis. The results show that the Lempel-Ziv complexity is an effective tool for bearing diagnosis.

Author Biographies

Diego L. Guarín-Lopez, Universidad Tecnológica de Pereira
Departamento de Ingeniería Eléctrica, Universidad Tecnológica de Pereira
Álvaro A. Orozco-Gutierrez, Universidad Tecnológica de Pereira
Departamento de Ingeniería Eléctrica, Universidad Tecnológica de Pereira
Edilson Delgado-Trejos, Instituto Tecnológico Metropolitano
Grupo MIRP, Centro de Investigación, Instituto Tecnológico Metropolitano
How to Cite
Guarín-Lopez, D. L., Orozco-Gutierrez, Álvaro A., & Delgado-Trejos, E. (2011). Método para el diagnóstico de rodamientos utilizando la complejidad de Lempel-Ziv. TecnoLógicas, (26), 89-112. https://doi.org/10.22430/22565337.44

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Published
2011-06-21
Section
Articles

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