The Sage Seminar Series

Modal Analysis (Level: Advanced, 3 Day, $1,250*) Registration Form | Brochure (533 kB)

In partnership with Vibrant Technology, this comprehensive course takes the attendees from the fundamental concepts all the way through completing a whole test.

* $625 with purchase of Vibrant ME'scope VES software with Modal Option

7) Measurements Lab

Measurement Setup
Data Acquisition
Importing Data into ME'scope
Assigning Measurements to Model
Animating Model

8) Modal Theory

Equations of Motion
Assumptions
Modal Parameters

9) Modal Parameter Estimation (Curve Fitting)

Methods
Frequency vs. Time Domain
SDOF vs. MDOF
Decaying Sine
Multiple Reference (Poly Reference)

10) ME'scope Curve Fitting Lab

Single Reference
Multiple Reference

11) Structural Dynamics Modification

SDM Defined
Calculation of Element Modes
Substructuring
Tuned Absorbers
Comparison of Results

12) SDM Lab

Example Problems

1) Introduction to Modal Analysis

Purpose and Usage of Modal Analysis?
Causes of Vibration
Modes

2) Mode Shapes vs. ODS

Operating Deflection Shapes
Modes and ODS Contrasted
Measurement of ODS

3) Single Degree of Freedom Systems

FRF, Transmissability, and Transfer Function
FRF's of Mass, Spring, and Damper Systems
FRF's and Modes

4) Lab/Demonstration

Building Models with ME'scope

5) Excitation Techniques

Impact
Shaker
Acoustic Excitation
Excitation Signals

6) Modal Measurements

Test Setup
Steps in a Modal Test
Recognizing Good Measurements
Excitation Signals