Modal analysis and FEA-test correlation seminar
Joe Gibbs Racing, 13415 Reese Blvd W, Huntersville, NC 28078
Resonances, mode shapes, MACs, damping?
Join us for an informative and educational day covering the modal analysis testing and FEA-test correlation on January 14, 2020.
This seminar can help you answer questions such as:
- 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?
This seminar is designed for anyone who wants to learn how to perform modal analysis. Live demonstrations will be given throughout to help reinforce the topics.
Joe Gibbs Racing parking information click here
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Agenda
show detailed agendaModal analysis and FEA-test correlation seminar
Joe Gibbs Racing parking information click here
Welcome 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 cont.
- Modification prediction
- Accelerometer mass compensation
- FE-test correlation
End