Arabian American Center October Training & Development
Program Title:
Effective Operation, Maintenance , & Troubleshooting of Rotating Machinery
14.10.2018 - 18.10.2018
$ 2750


 Course Objective:

           Upon completion of the program the delegates will be able to:

              * Understand what vibrations are and how to measure them using a data collector and software,

              * Understand the characteristics of vibrations (frequency, amplitude and phase) and how to

                  collect them,

              * Understand the basic theory, characteristics and operation of the accelerator, the data

                  collector and signal processing,

              * Relate common mechanical problems to frequencies that appear in the spectra,

              * Interpret vibration data based on frequency and make an informed recommendation on

                   possible course of action.

Who Should Attend:

      This seminar is designed for rotating equipment engineers and technicians in charge of predictive maintenance, plus maintenance and operations personnel, who wish to expand their analytical and problem solving skills.

Course Contents:

          Maintenance Theories and Strategies:

                              * Breakdown, Preventive, Predictive & Proactive Strategies

                              * Detection, Analysis, Correction & Verification, RCA


          What is Vibration?

                              * Vibration amplitude response, spring mass & simple time waveform concept

          Vibration Characteristics?

                              * Frequency

                                             Frequency from the time waveform; Time domain to frequency domain

                                             Complex vibrations; FFT Process

                              * Amplitude

                                             The three parameters of Displacement, Velocity & Acceleration

                                             General useful frequency ranges; Relationship between the three parameters

                               * Phase

          Brief  introduction:

          Peak, Peak-Peak & RMS explained

          Understanding the Vibration Spectrum

                           * Importance of resolution & accuracy; Effects on data collection time; Effects of


                              * Time and frequency domains

          Overall vibration and its limitations:

          Principals of digital data acquisition and FFT processing for reliable spectral analysis

                             * FFT parameters (# of lines, resolution, frequency range)

                             * Sampling and digitizing data; Frequency aliasing and its prevention

                             * FFT window selection; Types of averaging; Effects of overlap processing

                             * Importance of bandwidth and frequency separation

          Time waveform analysis:

                             * Definition of the total time waveform and & how to interpret time waveform data

                             * When and why time waveforms should be acquired

                             * How and why time waveform amplitudes can be so different from those in an FFT



          How to use the General Severity Charts?

          Overview of Vibration Instrumentation

                             * Overall level meters; FFT Analyzers; Real Time Analyzers


          Overview of Vibration Transducers:

                             *Accelerometers; Velocity Transducers; Eddy Current Probes; Shaft Contact Probes


          Transducers & mounting methods:

          Systematic approach to Vibration Analysis = How to create meaningful narrowband spectral

            alarm envelopes

                             * Frequency Set up

                             * Setting alarm levels (Overall & Bands)

                             * Simultaneous generation of alarm envelopes on large machine 'families'

          Diagnosing and Unbalance:

                             * What is an Unbalance

                             * Three types of Unbalance = Force, Couple, Dynamic & Overhung Rotor

                             * Causes of Unbalance

                             * How to ensure the dominant problem is unbalance

                             * Purpose for balancing

                             * Types of Balancing

                             * Equipment for balancing

                             * Recommended vibration and balance tolerances.

          Diagnosing Bearing problems:

                             * Different types of Rolling Element Bearings

                             * Loads and supporting characteristics

                             * Mounting & Removal

                             * Fits & Tolerances

                             * Lubrication and Seals

                             * Life of Bearings

                             * Failure Modes

                             * Inspection & Monitoring

                             * Diagnosis & Repair

                             * Examples of Failed Bearings, How bearings fail

                             * Four stages of defects

                             * Case Historie

          Diagnosing Misalignment problems:

                             * Different types of Misalignment = Parallel (Offset), Angular, Combined

                             * Diagnosis and Repair

          Diagnosis Eccentricity problems:

          Diagnosing Gears problems

                             * Different types of Gears

                             * Gear Mesh Frequencies

                             * Tooth wear/load

                             * Misalignment/Eccentricity of gears

                             * Significance of gear sidebands

          Diagnosing Mechanical Looseness problems:

          Diagnosing Belt problems

                             * Detecting Worn Or Damaged Belts/Pulleys

                             * Pulley Misalignment

                             * Eccentric Pulleys

          Diagnosing Electrical Problems:

                             * Common Electrical Frequencies

                             * Estimating number of poles

                             * Stator problems

                             * Rotor problems


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