System identification of linear structures based on Hilbert-Huang spectral analysis. Part 1: Normal modes

Keyphrases

• Hilbert-Huang 100%
• Spectral Analysis 100%
• System Identification 100%
• Linear Structure 100%
• Modal Response 100%
• Linear Systems 66%
• Damping Ratio 66%
• Natural Frequency Ratio 66%
• Instantaneous Amplitude 66%
• Instantaneous Phase 66%
• Phase Angle 66%
• Free Vibration 66%
• Vibration Time 66%
• Empirical Mode Decomposition 33%
• Least Square Fitting 33%
• Response Data 33%
• Mode Shape 33%
• Effective Tool 33%
• Hilbert Transform 33%
• Dynamic Characteristics 33%
• Single Measurement 33%
• Degrees of Freedom 33%
• Decomposition Approach 33%
• Stiffness Matrix 33%
• Intermittency 33%
• Mass Matrix 33%
• Numerical Simulation Results 33%
• Multi-degree-of-freedom (multi-DOF) 33%
• Different Dynamics 33%
• Linear Least-squares 33%
• Damping Matrix 33%
• Mass Damping 33%
• Multi-degree-of-freedom System 33%

Engineering

• Time History 100%
• Degree of Freedom 100%
• Normal Modes 100%
• Damping Ratio ζ 66%
• Frequency Ratio 66%
• Resonant Frequency 66%
• Phase Shift 66%
• Free Vibration 66%
• Simulation Result 33%
• Least Square 33%
• Empirical-Mode Decomposition 33%
• Mode Shape 33%
• Freedom System 33%
• Stiffness Matrix 33%
• Mass Matrix 33%
• Single Measurement 33%
• Damping Matrix 33%
• Mass Damping 33%