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Hands-On Modal Testing & Analysis Course
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Lab
Exercise - Porsche Modal:
During each modal seminar, the attendees conduct a
multi-channel modal test on a Porsche 914-6 race car (POC
V3-R5) .
Students setup the modal test instrumentation & data acquisition software,
generate the model geometry, acquire modal test data and extract the modal
parameters. The Porsche is also used to demonstrate
shaker excitation methods (random, burst random, chirp, burst chirp, etc.). |
4 Day Hands-On Modal Testing & Analysis Course:
Schedule: March 2nd-5th,
2010, July 20th-23rd, 2010,
November 2nd-5th, 2010
Course Fee:
$2,150.00 per Attendee
The course fee includes participation, course notes, lunches and refreshments. A
full refund will be made for all cancellations received 30 days before the start of the course.
No refunds will be granted after the 30 day deadline. Substitute attendees will be accepted at any time. In the event
that we have to cancel the course, the course fee will be refunded in full, but we disclaim
any further liability.
This "Hands on Modal Testing Seminar" is
truly "HANDS ON". At least 50% of the time will be spent in Navcon's
laboratory setting up analyzers, making measurements, acquiring, reducing and
assessing modal data. It is our goal, that upon completing the class, the
attendees will be able to conduct a modal test from start to finish.
- The attendees are welcome to bring their own equipment,
structure or product.
Seminar Schedule:
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Tuesday
8:30 am to 5:30 pm - Modal Seminar
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Wednesday
8:30 am to 5:30 pm - Modal Seminar
5:30 pm to 6:30 pm - Pizza & Beer
6:30 pm to 10:00 pm - Porsche Modal Test
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Thuesday
8:30 am to 5:30 pm - Modal Seminar
5:30 pm to 6:30 pm - Laser Vibrometry Laboratory
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Friday
8:30 am to 3:00 pm - Modal Seminar
[The seminar will end about 3 pm on Friday. If flying out of Orange County or
Ontario, we recommend arranging for flights after 6 pm. If flying of of
LAX (OUCH), we recommend flights after 7 pm. Attendees might also consider
spending the weekend. There are many places to see in the LA area
including: Disneyland, Knott Berry Farm, Universal Studios, Hollywood, Beverly
Hills, Venice Beach, etc. You might also catch a car race at Willow
Springs ...]
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Hands-On Modal Testing Seminar - Course Outline |
Digital Signal Processing Basics
- Fourier analysis
- Sampling theory
- Frequency domain windowing
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Modal Test Procedure
- Test setup & fixturing
- Computer model (display)
- Measurement procedures
- Parameter estimation & animation
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Measurements
- Harmonic motion
- Linear system relationships
- Mathematical relationships
- Frequency response & coherence
- Input, output & cross power
- Modal damping relationships
- Time domain measurements
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Modal Theory
- Single DOF modal testing model
- Multiple DOF modal testing model
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Introduction to Modal Analysis
- Modal definitions
- Layman's visualization
- Lumped, continuous & finite element models
- Normal mode vs. transfer function method
- Modal parameters
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Parameter Estimation
- Single DOF curve fitting methods
- Multiple DOF curve fitting methods
- Time & Frequency domain methods
- Local & Global curve fitting methods
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Excitation Techniques
- Single & multiple shaker techniques
- Impact excitation method
- Acoustic excitation method
- Excitation signal types
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Other Topics
- FEM/Test Model Correlation (NEW)
- Acoustical modal analysis
- Operational deflection shapes
- Documenting results with digital movies
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Single Degree of Freedom Systems
- Characteristic equation
- Transfer function derivation
- Transfer function on the S-plane
- Transfer function in partial fraction form
- Frequency response in terms of the physical
properties (mass, stiffness & damping)
- Frequency response in terms of the modal parameters
(frequency, damping & residue)
- Mass, stiffness and damping sensitivity
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Hands On Laboratory Exercises
- Measurements laboratory
- Excitation techniques laboratory (impact &
shaker methods)
- Modal test of a plate structure (JIMBeam)
- Modal test of a race prepared 914 Porsche
- Operational deflection shape test of a
Laser Table
- Laser vibrometry laboratory
- Parameter Estimation
laboratory
- Test/Analysis model correlation exercise
- Bring your own structure, we'll test it in class
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To download the seminar outline &
registration form:
Modal
Seminar Outline.
To register On-line:
Registration
Interested in pictures from previous seminars?
Modal Pictures
Send mail to
webinfo@navcon.com
questions or comments..
Copyright © 1997 - 2007
Navcon Engineering Network
Last modified:
December 04, 2009
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