Vibration 2 Outline

/Vibration 2 Outline
Vibration 2 Outline2016-07-20T13:48:11+00:00

Vibration 2 Course Outline:

Day 1


The most common vibration sources

Program philosophy


Vibration Basics

Using history in analysis

Analyzing amplitudes

Analyzing frequency

Analyzing phase

Basic separation of imbalance and misalignment

Understanding vectors

Instrument setup parameters

Low frequency cutoff

FFT Windowing

Sampling rate / fmax



Transducer mounting techniques

Spectral analysis overview


What occurs at frequencies less than 1 times RPM

What occurs at 1 times RPM

What occurs at frequencies above 1 times RPM, lower range

What occurs at higher frequencies

The mental approach to analysis

Further detail on separating Imbalance from Misalignment

Understanding the effects of truncation, modulation and beats

Spectral result of a truncated waveform

Modulation and sidebands

Effect of beats on amplitude and phase

Synchronous time averaging

Day 2

The financial impact of an effective vibration program

Justifying the program

Looseness and Rubs

Analysis of Motors

Separating electrical hum from other sources

Rotor bar problems

Bearing Vibration

Rolling element bearings

Four stages of bearing failure

Oil whirl in sleeve bearings

Gear Vibration

Causes of gear mesh vibration

Cracked teeth

Orbiting gears

Frequency analysis exercises

Day 3

Analysis of Pumps




Belt Driven Machine Vibration



Frequency analysis and simulator exercises


Large vibration at 1 location

Speed sensitivity

Bump test



Phase change

10 division plot

Temporary bracing

Shaker test

Foot Related Resonance

Day 4


Case histories and hands on

Detuning the resonance verses eliminating the source

Phase analysis

Methods of acquiring phase data

Conventions and relationships

Imbalance and misalignment patterns

Identifying a bent shaft

Operation deflection shape programs

The effect of resonance on phase

Case histories and exercises

Effective Report Writing

Preventing Misalignment

Obtaining accurate readings

Thermal growth

Day 5  (a.m.)

Preventing Imbalance Problems

Balance tolerances

Balancing narrow and overhung rotors

Assembly errors

Key length demo

The Precision Installation process / Starting a Machinery Improvement Program

Review course content

Day 5  (p.m.)

Certification testing (optional)