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VA03

Vibration Analysis –Introductory Course

The delegate is expected to have a basic knowledge of maintenance as applied to rotating equipment and be able to perform basic fault diagnosis and condition evaluation.  A proficiency in math that includes arithmetic and basic algebra is necessary.

Introduction

As a machine gets older we can expect a certain amount of deterioration in performance and in the general condition of the machine.  If we understand the failure mechanisms that are in place we can identify which parameters best indicate the deterioration of the machine.

Vibration analysis techniques are discussed in the course with a view to optimising the maintenance engineering effort while maximising production. 

Target Audience

This seminar is directed towards Supervisors, Team Leaders and Managers in Maintenance, Engineering and Production. The seminar will also benefit anyone who wishes to update themselves on Vibration Analysis techniques, judge the suitability of these techniques for their needs, and learn how to implement them for the benefit of their organisations.

Objectives

At the end of this seminar participants will have:

·         An understanding of a range of Vibration Analysis techniques and their applications

·         Knowledge of the potential contribution of each these techniques to maintenance efficiency

·         Guidelines indicating how these techniques can interact with and support other maintenance activities

·         Hints and Tips for practical application of these techniques so as to achieve the best results

·         A practical approach to developing an action plan to utilise vibration analysis in their own areas of responsibility, fitting them into the overall maintenance strategy, and measuring benefits

Key Benefits

The knowledge gained in this seminar will:

·         Enable the delegate to develop a practical vibration analysis programme.

·         Give the delegate who is not directly involved in vibration analysis, an understanding of the possibilities and limitations of vibration analysis.

·         Allow tighter control of maintenance budgets by the avoidance of unplanned equipment failures in service.

Training Methodology

The seminar will be conducted along workshop principles with formal lectures, case studies and interactive worked examples. Relevant case studies will be provided to illustrate the application of each tool in an operations environment. Each learning point will be re-enforced with practical exercises. There will be ample opportunities for discussion and sharing experiences.

Organisational Impact

Vibration Analysis of rotating plant is vital to the budgetary success of the operations organisation.  On completion of this seminar the delegate will be able to critically analyse the methodologies employed within the organisation and instigate improvements where required.

Personal Impact

Technical knowledge is key to effective control and peer respect within any maintenance organisation; when this is achieved personal satisfaction follows.  This seminar will give the delegate the required level of technical knowledge and skill to achieve that personal satisfaction.

Competencies

·         Understanding of vibration analysis techniques as applied to rotating equipment.

·         Ability to put in place predictive maintenance measures to quantify equipment condition.

·         Interface with and control Vibration Analysis service providers.

·         Identify and specify new Vibration Analysis equipment.


 

Seminar Contents

Day 1

Principles of Vibrations

·         Basic motion

·         Measurement parameters

·         Amplitude - peak, derived peak, rms

·         Units, unit conversions

·         Period, frequency (CPM, Hz, orders), phase

·         Frequencies (natural, forcing) resonance, critical speeds

·         Resonance and critical speeds

 

 

 

Day 2

Principles of Vibrations (contd.)

·         Measures and conversion (displacement, velocity, acceleration)

·         Plots of time & frequency

·         Basic time waveform

·         Vibratory forces

 

Data Acquisition

 

·         Instrumentation

·         Transducers - type, location, mounting

·         Proximity probe conventions

·         Principles of data collection

·         Test procedures

·         Using a computer database

·         Selecting measurement parameters

 

 

 

Day 3

Data Acquisition (contd.)

·         Frequency spans/response

·         Pitfalls of data acquisition

·         Senses and safety

·         Recognizing poor data

 

Data Processing

 

·         Averaging

·         Data acquisition time

·         Dynamic range

·         Determination of resolution

·         Lines of resolution, window selection, FMAX triggering

·         FFT application

 

 

 

Day 4

Condition Monitoring

·         Fault condition monitoring

·         General fault recognition

·         Trending

 

Fault Analysis

 

·         Using phase

·         Calculation of frequencies (gear, bearing, vane-pass)

·         Basic spectrum analysis

·         Fault analysis (mass unbalance, misalignment, looseness; gearbox, motor, fan and pump faults; rolling element bearing)

 

 

 

Day 5

Condition Evaluation

·         Severity measures and charts

·         Chart applications

 

Machine Testing

 

·         Impact testing - force, application, sensor location, data

·         Acceptance testing - test plans, sensor selection and location

·         Periodic monitoring (frequency spans, frequency of measurement, trending, routes)

·         Basic balancing principles - heavy/high spot, trial weight selection/size