SEMINARS
related to Vibration Analysis offered by Technical Associates
of Charlotte
Fee for Analysis II: $1495
Optional Vibration Analyst II Certification Testing is available at a cost
of $250 on the last day.
Add a Pocket Vibration Diagnostic Handbook for $49.
Delivered to you at the Seminar.
ANALYSIS
II - CONCENTRATED VIBRATION SIGNATURE ANALYSIS AND RELATED CONDITION
MONITORING TECHNIQUESThis three day seminar builds from "ANALYSIS
I" and is primarily intended to enhance the vibration expertise
of analysts having approximately one to three years experience.
The curriculum allows the analysts to significantly
improve the effectiveness of their condition monitoring programs.
Techniques are provided on how to detect each
of 44 machine problems shown in our world renown "Illustrated
Vibration Diagnostics Chart", along with numerous real-world
case histories demonstrating how these problems have been detected
and corrected (250 page Case History Section).
Diagnoses of more complex machine problems are
taught including gear, rotor rub, journal bearing, electrical,
hydraulic/aerodynamic, beat vibration, resonance and tracking
of rolling element bearing "failure scenarios".
Refinement of Overall and Spectral Band Alarms
using proven statistical techniques and real-world examples is
explained. Important FFT Processing Techniques are covered including:
window selection, averaging types, overlap processing, dynamic
range, and the significance of bandwidth.
Introductory information is provided on how to:
(1) specify meaningful Narrowband envelope alarms, (2) perform
natural frequency tests; (3) analyze time waveforms; (4) use synchronous
time averaging; (5) interpret amplitude demodulated spectra and
waveforms; and (6) specify proper vibration isolation and damping
treatments.
| ANALYSIS
II AGENDA |
| Introduction
and Course Overview |
Brief
Review of "ANALYSIS I" Seminar Topics:
- Vibration
Fundamentals
- Tabulation
of Vibration Instruments Available
- Tabulation
of Vibration Transducers Available
- Role
of Spike Energy, Shock Pulse & HFD
- Common
Pitfalls in Everyday Vibration Measurements
|
Principles
of Digital Data Acquisition and FFT Processing for Reliable
Spectral Analysis:
- FFT
Parameters (#Lines, Resolution, Frequency Range)
- Sampling
& Digitizing Data
- FFT
Window Selection
- Types
of Averaging
- Effect
of Overlap Processing
- Importance
of Bandwidth & Frequency Separation
- Difference
in Digital and Analog Overall Level
- Effect
of Dynamic Range on Detection of Multiple Problems
|
Introduction
to Natural Frequency Test Methods:
- Difference
Between Natural Frequency, Resonance and Critical Speed
- Impulse
Natural Frequency Testing
- Runup
and Coastdown Natural Frequency Testing
- Bode'
Plot Acquisition & Interpretation
- Polar
Plot Acquisition & Interpretation
|
Enhanced
Vibration Diagnostics Using Phase Analysis:
- Definition
of Phase
- Instruments
and Transducers Required to Measure Phase Reliably And
Accurately
- How
to Make Phase Measurements
- Presentation
of Standard Forms for Documenting Phase Measurements for
Various Machine Types
- How
to Accurately Interpret Phase Measurement Results to Diagnose
Various Problems
- Using
Phase to Find the Operating Deflection Shape of a Machine
& its Supporting Structure
|
| Concentrated
Vibration Signature Analysis Using Technical Associates'
World Renown "Illustrated Vibration Diagnostics Wall
Chart": |
Review
of Problem Detection Covered in "ANALYSIS I" Seminar:
- Mass
Unbalance
- Eccentric
Rotors
- Bent
Shafts
- Misalignment
- Mechanical
Looseness (3 Types)
- Belt-Drive
Problems
|
In-depth
Coverage on How To Detect the Following Problems:
- Resonance
Problems
-
Characteristics Which Help Identify Possible Resonances
from Survey Spectra.
- How
to Approximate Natural Frequencies for both Overhung
and Simply Supported Rotors.
-
Tracking of Rolling Element Bearing Condition Using:
- Newly
Available High Frequency Demodulated and Enveloped
Spectra.
- Bearing
& Structural Natural Frequencies.
- Bearing
Defect Frequencies & Sidebands.
- Presentation
of 6 Bearing Failure Scenarios.
- When
Should Bearings be Replaced?
- Plain
Bearing Problems
Plain Bearing Wear & Clearance Problems
Oil Whirl Instability
Oil Whip Instability
Dry Whip
-
Rotor Rub
Partial Rub
Full Annular Rub
- Flow-Induced
Vibration Problems
Hydraulic/Aerodynamic Forces
Cavitation and Starvation
Recirculation & Flow Turbulence
Surge and Choking
- Gear
Problems
Gear Tooth wear
Excessive Gear Tooth Loading
Gear Eccentricity and/or Backlash
Gear Tooth Misalignment
Cracked or Broken Gear Teeth
Fractional Gear Mesh Frequencies
Hunting Tooth Problems
- Electrical
Problems With Induction Motors
Stator Problems
Eccentric Rotors (Variable Air Gap)
Cracked, Broken or Loose Rotor Bars
Thermally Induced Bow
Electrical Phasing Problems
Torque Pulse Problems
- Beat
Vibration Problems
- Soft
Foot/Distorted Frame Problems
|
How
to Refine Both Overall and Spectral Band Alarms Using Proven
Statistical Techniques:
- Statistical
Procedure Developed for Refining Overall and Spectral
Band Alarms
- Real-World
Applications of the Above Procedure on Machinery at 4
Client Plants
|
Introduction
To Narrowband Envelope Alarms:
- Definition
of Narrowband Envelope Alarms
- Generating
Envelope Alarms for a New Database
- Generating
Envelope Alarms for a Pre-existing Database
|
Introduction
To High Frequency Demodulated & Enveloped Spectra:
- What
They Are and How They Are Generated
- How
They Are Used to Detect Bearing, Gear, Lubrication and
Certain Electrical Problems
|
Introduction
to Vibration Isolation Mechanisms:
- Definition
of Vibration Isolation
- How
Isolators Work
- Sample
Isolator Types
|
Introduction
To Vibration Damping Treatments:
- Definition
of Vibration Damping
- How
Damping Affects Resonant Vibration
- Sample
Damping Treatments
|
| Prerequisites
At least 1 to 2 years vibration spectrum
analysis experience is recommended. General familiarity
with using a calculator and with a computer is required.
Good math skills and simple Algebra, primarily solving for
one unknown, is a must. Some fundamental Trigonometry background
will also prove helpful. If Vibration Specialist Certification
is desired at Level II, a student must have previously passed
a Level I Certification Test.
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| For
more detailed information, please call Technical Associates of Charlotte,
send us an email, or use our quick & convenient Online
Request Form.
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Call Technical
Associates @ 704-333-9011 |
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