Modal Analysis and FEA-Test Correlation Seminar
Siemens Industry | 100 Technology Drive | Alpharetta, GA 30005
Resonances, Mode Shapes, MACs, Damping?
Siemens PLM cordially invites you for an informative and educational day covering the modal analysis testing and FEA-Test correlation on July 23, 2019.
This seminar can help you answer questions like:
- What is modal analysis? Why are resonant frequencies important?
- How can I prove that my simulation model is accurate? How can I get realistic damping?
- What is the significance of frequency response functions (FRFs) and how can they help me?
- What is the Modal Assurance Criterion, and what role does it play?
Live demonstrations will be given throughout to help reinforce the topics.
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Agenda
show detailed agendaWelcome and coffee
Structural Dynamics
- Resonances
- Frequency response functions (FRFs)
- Excitation techniques (hammers, shakers, etc.)
Measurement Considerations
- Sampling rate, blocksize, acquisition time
- Bandwidth, spectral lines, frequency resolution
- Window (hanning, flattop, etc.) and leakage
Break
Measurement Considerations cont.
- FFTs, phase, autopowers
- Autopowers vs. power spectral density (PSDs)
Lunch
Structural Analysis
- Modal curvefitting techniques
- Modal synthesis
- Modal assurance criterion (MAC)
Break
Structural Analysis
- Modification prediction
- Accelerometer mass compensation
- FE-Test correlation
End