Analytical and Experimental Modal Analysis

This book covers the fundamentals and basic concepts of analytical and experimental approaches to modal analysis. In practice, the analytical approach based on lumped parameter and finite element models is widely used for modal analysis and simulation, and experimental modal analysis is widely used for modal identification and model validation. This book is inspired by this consideration and is written to give a complete picture of modal analysis.

Features:

• Presents a systematic development of the relevant concepts and methods of the analytical and experimental modal analyses.
• Covers phase resonance testing and operational modal analysis.
• Provides the relevant signal processing concepts.
• Includes applications like model validation and updating, force identification and structural modification.
• Contains simulations, examples, and MATLAB® programs to enhance understanding.

This book is aimed at senior undergraduates/graduates, researchers, and engineers from mechanical, aerospace, automotive, civil, and structural engineering disciplines.

1. Introduction. 2. Lumped Parameter Modeling of Vibrating Systems. 3. Finite Element Modeling of Vibrating Systems. 4. Analytical Modal Analysis of SDOF Systems. 5. Analytical Modal Analysis of Undamped MDOF Systems. 6. Analytical Modal Analysis of Damped MDOF Systems. 7. Characteristics of FRFs. 8. Signal Processing for Experimental Modal Analysis. 9. FRF Measurement Using an Impact Hammer. 10. FRF Measurement Using Shaker Excitation. 11. Modal Parameter Estimation Methods. 12. Phase Resonance Testing. 13. Operational Modal Analysis. 14. Applications of Experimental Modal Analysis. 15. Finite Element Model Validation and Updating.

Subodh V. Modak is a Professor in the Department of Mechanical Engineering at the Indian Institute of Technology Delhi. He received his bachelor's degree in Mechanical Engineering from Shri G.S. Institute of Technology and Science, Indore, master’s degree in Design Engineering from Indian Institute of Technology, Bombay, and PhD from Indian Institute of Technology, Delhi. His research and teaching interests include experimental modal analysis, model updating, vibration and acoustics, control engineering, and active noise control. His research is published in many leading and reputed journals.