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Methods for modal parameters identification applied to CNC machine tool feed drives

By Crinela Pislaru, Derek G. Ford, Muhammad Helmi Nur Widiyarto and Alan Myers

Abstract

The paper presents a critical appraisal of existing methods for the identification of modal parameters (natural frequencies, damping ratios and mode shapes) for CNC machine tool feed drives. The classical methods for modal parameter identification are briefly discussed and the advantages of novel application of Continuous Wavelet Transform for modal parameter identification of CNC machine tools are underlined. \ud The evaluation of the state of the art of modal analysis techniques also contains a description of the main methods used in the modern experimental modal analysis applied to frequency and time domains. The accuracy of modal parameters (especially of damping ratios) identified from the measured frequency response function is influenced by various parameters and conditions, depending on which modal parameter extraction technique is used. \ud The conclusions of the critical appraisal of these methods will help the designers and academic and industrial researchers to develop and use methods which permit the calculation of modal parameters with high accurac

Topics: T1, TJ
OAI identifier: oai:eprints.hud.ac.uk:4235

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Citations

  1. (2000). Analysis of Non-linear Systems Using Wavelets. doi
  2. (2000). Basics and State-of-the-art of Modal Testing. doi
  3. (2003). Ford – Modal Parameter Identification for CNC Machine Tools Using Wavelet Transform. doi
  4. (2000). Fundamentals and Practice. doi
  5. (1997). Identification of Damping in MDOF Systems Using Time-Scale Decomposition. doi
  6. (2003). Identification of Modal Parameters Affecting the Dynamic Performance of a CNC Machine Tool. doi
  7. (1999). Improved Modal Parameter Identification by Non-Parametric Modelling of the Measurement Noise.
  8. (1990). Introduction to Modal Analysis and Operating Deflection Shape.
  9. (2000). Investigating Various Modal Analysis Extraction Techniques to Estimate Damping Ratio. MSc Thesis, Virginia Polytechnic Institute,
  10. (1998). Modal Testing of Rotating Machinery Structures. doi
  11. (2000). Modal Testing, Theory, Practice and Application, doi
  12. (2001). Parameter Identification and Hybrid Mathematical Modelling Techniques Applied to Non-Linear Control Systems.
  13. (1995). Structural Dynamics Identification Using Derived Equivalent Eigensystem Algorithm.
  14. Vibration Modelling and Identification Using Fourier Transform, Wavelet Analysis and Least-Square Algorithm. doi

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