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VSC Course Agendas & Descriptions

Dynamic Balancing  •  Machinery Vibration Analysis  •  Data Management

Dynamic Balancing (in-situ):

This seminar focuses on the practices and principles of dynamic balancing and is replete with practical hands-on demonstration. It is neither instrumentation nor software- specific and, therefore, applies to anyone wishing to learn or review practical field balancing procedures. Strong emphasis is placed upon the use of vector solutions to many types of dynamic balancing problems and weight corrections.

Day 1
Introduction
Causes of imbalance, types of imbalance, effects of change in speed, vibration vs. imbalance.
Balancing I
Single plane balancing, balancing workshop I, balance weight calculation, safe trial weight, balance weight splitting, combining, moving effect, change in radius, centerhung and overhung rotors, balancing workshop II.

Day 2
Balancing II
Static-couple balancing, rigid and flexible rotor conditions, high and low speed balancing considerations, balance tolerances, slow roll measurement, balance and vibration standards and tolerances.
Balancing III
Two plane dynamic balancing.
Balancing IV
No phase method of balancing, balancing workshop III.

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Machinery Vibration Analysis

This seminar isdesigned as an accelerated 3-day course designed to quickly immerse the trainee into the most critical aspects of machinery vibration analysis. The course is only 3 days long but it contains most of the content typically associated with Level I and Level II training. Numerous demonstrations and many real data examples are provided using multi-channel instrumentation.

Day 1
Introduction to Predictive Condition Monitoring
RCM overview and the role of condition monitoring.
Fundamentals of Vibration I
Excitation and restraining forces, frequency, period, and phase relationships.
Workshop Application
Machinery vibration demonstration.
Fundamentals of Vibration II

Amplitude units, peak, RMS, average, and peak-peak amplitudes, frequency and time domains.
Data Presentation Formats

Time waveforms, frequency spectra, frequency and order normalized cascades, peak hold, Bodé, polar, shaft position, and orbital displays.

Day 2
Data Collection & Measurement Parameters
Frequency range selection criteria, frequency resolution, cursor types (hardware and software), scaling, filtering, AC/DC coupling, aliasing, windows and weighting, and averaging dynamic range.
Transducers
Sensor units, power requirements, frequency and amplitude response, sensor mounting, sensor selection, measurement standards.
Workshop Application
Effects of frequency resolution, filtering, averaging, amplitude units.
Vibration Severity
Industry standards & tolerances, machinery type, mounting and height considerations, shaft vs. casing measurements, narrowband, broadband, alarm band, percent change.
Machinery Diagnostics I
Imbalance, sheaves and drive belts, looseness, misalignment.

Day 3
Machinery Diagnostics II
Rubs, bearings, gears, couplings, resonance, electrical, vane/blade pass, rotor bar pass, blade rate, cavitation, whirl, whip, sum & difference frequencies.
Workshop Application
Real time vibration analysis of machine faults.
Low Frequency Amplitude
Dynamic range, sensor response, time waveforms, envelope analysis, effects of integration.
Resonance & Vibration Control
Resonance detection, identification of forcing function, minimizing effects of resonance.
Interactive Training Program
Solve real-world case histories using live vibration data, inspections, interviews, performance ratings and data, and clues (if necessary).

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Data Management

This seminar is designed to extensively train the participant in the use and application of VSC proprietary hardware and software, namely the SV3X FFT Spectrum Analyzer and WinProtect Data Management and Analysis Software. These systems are designed for speed, power, and flexibility and the trainee is shown how to optimize each of these facets.

Day 1
Machinery Database Creation I
Equipment hierarchy, machine/equipment/shaft/bearing types, drawing routines, equipment connections, shaft factors, bearing factors (frequencies).
Machinery Database Creation II
Exception/analysis threshold criteria (narrowband, broadband, and alarm band), percent change vs. absolute value, copy routines.
Machinery Database Creation Workshop
Route Creation
Route names, route creation, transducer selection, route data collection parameters, machinery orientation (horizontal/vertical), sequencing, barcode numbers, printing route information.
Data Communications
Printing routes, downloading routes.

Day 2
Data Communications
Uploading software, uploading routes.
Vibration Survey Data Acquisition I
Route data collection, breaking sequence, editing data collection parameters.
Vibration Survey Data Acquisition II
Filtering, notes, sensor mounting, auto point identification, safety considerations.
Data Acquisition Workshop
Data Review
Records list, editing, cursors, viewing, printing.
Utilities
Rebuilding indexes, building databases, deleting databases, editing and defining probe types, units and hardware defaults.
Real-time Vibration Data Acquisition I
Instrumentation and measurement parameters.
Real-time Vibration Data Acquisition II
Display windows, panel conditions, frequency and time domains, data storage.
Data Acquisition Workshop
Data Communications I
Serial and modem data transmission, disk copy.

Day 3
Data Communications II
Protect directory structure, uploading data, modem data transmission.
Database Management I
Viewing vibration data, editing data, mass editing routines.
Database Management II
Printing data, cursors, scaling, changing units, transferring data.
Data Processing
Exception analysis, threshold criteria, reports menu, analysis parameters, route defaults, utilities, narrow band analysis, broadband analysis, archiving data.
Alarm Band Creation
Determination of alarm bands, installation of alarm bands, default vs. equipment specific alarm bands.
User Adaptive Analysis Weights
Terms, establishing diagnoses, diagnostic frequency component status and weight, applicability of alarm bands.
Alarm Band and User Adaptive Analysis Weights Workshop

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