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VA Category II Personnel l are qualified to perform industrial machinery vibration measurements and basic vibration analysis using single channel measurements,
with or without phase trigger signals, according to established and recognised procedures.
They require all the knowledge, experience and skills expected of Category I, and in addition they shall at least:
● be able to define the measurement activities to be undertaken by a category I individual in the course of routine data collection;
● be aware of
and capable of using the basic principles of signal analysis and, as such, can define acquisition and analysis settings to collect data appropriate to the machine(s) monitored;
● be able to perform basic (single channel) impact tests to determine natural frequencies;
● be able to interpret and evaluate test results and acceptance tests in accordance with
specifications and standards;
● be able to diagnose common fault indications and recommend basic corrective actions commensurate with their area of machinery experience including carrying out
single-plane balancing of rigid rotors with or without phase;
● be able to provide technical guidance to and instruct Category I personnel.
Course Content:
This course has a dedicated workbook based on the ISO 18436-2:2014
certification program for vibration analyst category II & is designed to prepare staff for the BINDT Cat II Certification Exam. The course is accredited to BINDT PCN CM GEN App D. The following is covered:
Day 1
Condition Monitoring
Learning Outcomes, CM Basics
● Task 1: Selecting CM Techniques (4)†
Range of CM Techniques
Examples of: CM Techniques & Alternative CM Instrumentation.
Measurement Intervals, Lead Time to Failure.
Principles of Vibration
Basic Motion, Definitions, Single Degree of Freedom (SDOF) Systems
● Task 2: Measuring Velocity (1)†
● Task 3: Vibration Waveform Examples (3)†
Phase & Waveform Descriptors, adding Sinusoidal Vibrations
● Task 4: Vibration Mixtures (4)†
● Task 5: Vibration Waveform Descriptors (1)†
Vibration Parameters
● Task 6: Calculating Parameters and Converting Units (1)†
Time and Frequency Domain, De-modulation (Enveloping)
Data Acquisition - Instrumentation
Instrumentation Types
● Task 7: Choice of Monitoring System (1)†
Examples of Online Monitoring Systems, Handheld Vibration Data Collection Systems, Handheld Vibration Meters, Other Data Acquisition Instruments
Vibration Transducers, Transducer Characteristics, Transducer Response
Day 2
Review of Day 1
Data Acquisition - Instrumentation
Examples of Vibration Transducers
● Task 8: Performance of Transducer Types (1)†
Accelerometer Mounting Response, Relative & Absolute Vibration Measurement
● Task 9: Mounting an Accelerometer using Glue-on Studs (1)†
Transducer Calibration
Measurement - Applying Standards
Vibration Measurement, Vibration Standards, Vibration
Limit Zones, Vibration Standards & Typical Bandwidths, Relative (Shaft) Vibration, Extracts from Key Vibration Standards
● Task 10: Vibration Severity Exercises (10)†
● Task 11: Broadband Vib. Fault Exercise (1)†
● Task 12: Typical Data Collection Procedure (1)†
Recognising Poor Data
Reason for Poor (Invalid) Readings
● Task 13: Recognising Invalid Readings (6)†
Poor Data Recognition Hints, Accelerometer Bias Output Voltage (BOV)
Monitoring Program Set-up
Setting up Vibration Data Collection
Vibration Data
Collection Parameters, Typical Vibration Data Acquisition Options, Typical Signal Processing Options, Typical Default Data Collection Set-up
Day 3
Review of Day 2
Monitoring Program Set-up
Route-based Data Collection, Identifying Equipment, Recording Equipment Information, Machinery Types, Examples of Machines, Electric Motor
Characteristics, Measurement Point Conventions
● Task 14: Allocating Measurement Points (1)†
● Task 15: Identifying Machine Components (1)†
● Task 16: Recognising Asset Types (1)†
Reports
Vibration Signal Processing
Overview of Analogue to Digital Conversion, Signal
Acquisition & Processing Factors: Sampling Rate, Sample Length, Aliasing, A-D, Averaging, Windowing, FFT
● Task 17: Recognising Effect of Signal Aliasing (2)†
Time Waveforms & Polar Plots, FFT Terminology
FFT Features, Waterfall Plot, Spectrum Resolution, Dynamic Range, Signal Clipping & Truncation, Filters
Fault Analysis - Rolling Element Bearings (REB)
Rolling Element Bearing Types, Factors
Influencing Bearing Lubricant Film, Major Causes of Failure, Rolling Element Bearing Life, Rolling Element Bearing Characteristics, Examples of Normal & Fault Conditions, FFT Application, Identifying Machine
Characteristics, Fault & Frequency Relationships
Day 4
Review of Day 3
Fault Analysis - REB - Fault Finding
Vibration Fault Finding Chart, Rolling Element Bearing Severity Chart
● Task 18: Recognising Common Faults (4)†
● Task 19: Vibration Analysis Examples (9)†
● Task 20: Case History - Ball Mill (1)†
Typical Maintenance Actions, Diagnosing Faults with Phase, Typical Maintenance Actions
Fault Analysis - Journal Bearings
Types of Journal Bearing, Relative & 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 & Isolation
Resonance Plots, Q Factor, Natural Frequencies, Identifying Resonance
● Task 21: Basic Hammer Test (1)†
● Task 22: Case History - Main Circ. Pumps (1)†
Resonance & Isolation, Exciter (Shaker) Test
● Task 23: Case History - Engine Test Pallet (1)†
Machine Self-excitation, Isolation, Reducing Transmission of Vibration, Transmissibility, Examples of Isolation Mounts, Specifying Isolators
Day 5
Review of Day 4
Corrective Action - Balancing
Introduction to Unbalance, Types of Rotor / Types of Unbalance, Balancing Methods, Unbalance and Eccentricity, Balance Quality Grades, Estimating
Permissible Unbalance
● Task 24: Specifying Balance Quality (4)†
Assessing Rotor Balancing Requirements
● Task 25: Single-Plane Balancing without Phase (1)†
Balancing with Amplitude and Phase
One Plane & Two Plane Balancing Checklist
● Task 26: Single-Plane Balancing with Phase (1)†
Polar & Component Correction
Corrective Action - Alignment
Types of Misalignment, Factors Influencing Alignment,
Alignment Tolerances, Alignment Check-off Sheet, Examples of Shaft Alignment Instruments & Tools
Training Test
Course Review
BINDT Cat II PCN Examination (3 hrs) [Optional]
† Number of examples in a particular task.
The workbook has 26 Tasks with a total of 59 separate examples
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