Reduce downtime and increase productivity by investing in the expertise of your personnel. Vibration Monitoring is a cost-effective strategy for condition monitoring rotating & reciprocating plant.
Difficulty Level:
Advanced:
Note: VA Cat II Qualification is usually a pre-requisite for this course.
Course Content
This course is in accordance with the ISO 18436-2 certification program for VA Category III. The following is covered:
Day 1
Condition Based Maintenance
Implementing CM – ISO flowchart
Reliability & Criticality Analysis
Availability & Reliability
Task 1: Calculating availability (1†)
Task 2: Creating an RBD
Failure Rates, Selecting CM Techniques
Task 3: Selecting CM Techniques (4†)
Range of CM Techniques including: Human Senses, Performance Monitoring, Corrosion Monitoring, Motor Current Monitoring (MCM), Thermal Monitoring (IRT), Tribology (Oil), Acoustic Emission (AE), Ultrasonic Testing (UT), Vibration Monitoring (VM). Alternative CM Instrumentation.
Understanding Measurement Intervals and Lead Time to Failure.
Principles of Vibration
Definition of Vibration, Single and Multiple Degree of Freedom Systems, Dynamic Vibration Absorber, Basic Motion, Measuring Vibration
Task 4: Measuring Velocity
Task 5: Vibration Waveform Exercises (3†)
Waveform Descriptors, Phase, adding Sinusoidal Vibrations, Orbit analysis, Lissajous figures, Windowing
Task 6: Vibration Mixtures (4†)
Task 7: Vibration Waveform Descriptors
Vibration Parameters & Converting Units
Task 8: Calculating Parameters and Converting Units
Time and Frequency Domain, Octave Band Analysis, De-modulation (Enveloping)
Day 2
Data Acquisition – Instrumentation
Task 9: Choice of Monitoring System
Online Monitoring Systems, Portable Vibration Data Collection Systems, Handheld Vibration Meters, Data Acquisition Instruments.
Transducers, Transducer Characteristics, Examples of Vibration Transducers & Accessories,
Task 10: Performance of Different Transducer Types
Mounting Transducers, Adhesive Cure Times,
Task 11: Mounting an Accelerometer using Glue-on Studs
Transducer Calibration, Vibration Transducer Calibration Instruments,
Task 12: Accelerometer Calibration Check
Task 13: Fixed Accelerometer Functional Testing
Measurement – Applying Standards
Vibration Measurement, Vibration Standards, Overall Vibration, Common ISO Vibration Standards, ISO 10816, ISO 7919, ISO 2372 and ISO 3945 (Superseded), Vibration Limit Zones, Vibration Severity Bandwidths, Extracts from selected Vibration Standards
Task 14: Vibration Standards Exercises (9†)
Task 15: Broadband Vibration Fault Exercise
Task 16: Setting up & Taking Measurements
Recognising Poor Data
Reasons for Poor (Invalid) Readings
Task 17: Recognising Invalid Readings (5†)
Poor Data Recognition Hints
Day 3
Monitoring Program Set-up
Typical Vibration Data Collection Parameters, Identifying Equipment, Recording Equipment Information, Electric Motor Characteristics, Measurement Point Conventions
Task 18: Allocating Measurement Points
Identifying Machines and Measurement Points
Task 19: Identifying Machine Components
Task 20: Recognising Asset Types
Typical Vibration Data Collection Parameters, Effective Reporting
Vibration Signal Processing
Overview of Analogue to Digital Conversion, Signal Acquisition Factors, Sampling Rate, Sample Length, Aliasing,
Task 21: Recognising the Effect of Signal Aliasing
FFT Terminology, FFT Features, Plots: trending, spectra, Waterfall Plot, Spectrum Resolution, Dynamic Range, Signal Clipping and Truncation, Filters.
Day 4
Fault Analysis – Rolling Element Bearings
Types of Rolling Element Bearings, Factors Influencing the Bearing Lubricant Film, Major Causes of Rolling Element Bearing Failure. Rolling Element Bearing Characteristics. Examples of Bearing Faults. FFT Application, Fault Finding, Identify Machine Characteristics, Fault & Frequency Relationships, Vibration Fault Finding Chart: Unbalance, Misalignment, Looseness, Bearing Damage, Rubs, Oil Whirl, Cavitation, Gear Mesh, Electric Motor Defects.
Task 22: Recognising Common Faults (4†)
Practical Fault Finding Examples
Task 23: Vibration Frequency & Signal Analysis (8†)
Task 24: Case History –Ball Mill
Diagnosing Faults with Phase, Phase Diagnosis Guide,
Task 25: Vibration Phase Analysis (3†)
Typical Maintenance Actions
Fault Analysis – Journal Bearings
Types of Journal Bearings, Examples of Journal & Thrust Bearings. Relative and Absolute Vibration Measurement, Journal Bearing Oil Wedge, Shaft Centreline, Journal Bearing Vibration Fault Finding, Premature Journal Bearing Failure Causes, Journal Bearing Loading, Orbit Analysis, Oil Whirl.
Resonance, Testing & Isolation
Natural Frequency, Resonance, Critical Speeds, Effects of Resonance, Resonance Plots, Q-factor.
Identifying Resonance, Hammer Test:
Task 26: Basic Hammer Test to Identify a Resonance
Task 27: Case History – Main Circ. Pumps
Modal Hammer, Mobility & Compliance
Task 28: Modal Hammer Test to Identify a Resonance (2†)
Task 29: Exciter Test to Identify a Resonance
Modal techniques and operational deflection shapes, Resonance Correction:
Task 30: Case History – Engine Test Pallet
Isolation and mounting systems, Reducing Transmission of Vibration, Specifying Isolators, Change of Mass & Stiffness.
Task 31: Selecting Isolation Mounts
Day 5
Corrective Action
Introduction to Unbalance, Types of Rotor, Types of Unbalance, Balancing Methods, Examples of Portable Dynamic Balancers, Unbalance and Eccentricity, Balance Quality, Balance Quality Grades, Alignment Tolerances,
Task 32: Specifying Balance Quality (3†)
Single & Twin-Plane Balancing
Task 33: Single-Plane Balancing without Phase
Task 34: Single-Plane Balancing with Phase
Task 35: Two-Plane Balancing with Phase
Training Examination & Course Review
Course Assessment
Optional BINDT PCN VA Cat III Exam*
Timing:
5 days including optional BINDT PCN VA Cat III examination*
* This can be arranged through any BINDT Approved Examination Centre (AEC)
* Applications should be made to BINDT at least 2 working weeks before the exam date
Note: The BINDT PCN VA Cat III certificate will only be awarded after 36 months relevant logged VA experience.
† Number of examples in a particular task
Note: The VA Cat III Workbook has 35 Tasks or Case Histories with a total of 70 separate examples