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Modal Analysis and FEA-Test Correlation

Akce a události | 11 December 2018 08:00 AM GMT
Siemens PLM, 10824 Hope Street, Cypress, California 90630

Siemens PLM cordially invites you for an informative and educational day covering the basics of Modal Analysis and FEA-Test Correlation.

Siemens PLM cordially invites you for an informative and educational day covering the basics of Modal Analysis and FEA-Test Correlation on Tuesday, December 11, 2018 in Cypress, CA.

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?

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.

In this free seminar, both simulation and test software will be presented, as well as a live demonstration of modal testing.

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8 a.m.

Welcome and coffee

8:30 a.m.

Structural dynamics

  • Resonances
  • Frequency response functions (FRFs)
  • Excitation techniques (hammers, shakers, etc.)

9:15 a.m.

Measurement considerations

  • Sampling rate, blocksize, acquisition time
  • Bandwidth, spectral lines, frequency resolution
  • Window (hanning, flattop, etc.) and leakage

10 a.m.

Break

10:15 a.m.

Measurement considerations (cont.)

  • FFTs, phase, autopowers
  • Autopowers vs. power spectral density (PSDs)

11:30 a.m.

Lunch

12:30 p.m.

Structural analysis

  • Modal curvefitting techniques
  • Modal synthesis
  • Modal assurance criterion (MAC)

2 p.m.

Break

2:15 p.m.

Structural analysis (cont.)

  • Modification prediction
  • Accelerometer mass compensation
  • FE-Test correlation

4:30 p.m.

Session concludes