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An Engineers Guide to Alignment, Condition Monitoring and Dynamic Balancing
 
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  The purpose of this handbook is to provide basic information and guidelines for the implementation of good shaft alignment, vibration analysis and dynamic balancing practice for standard rotating machines systems.
 
Laser alignment, dynamic balancing and condition monitoring are essential components of a viable maintenance strategy for rotating machines. In isolation each strategy helps to reduce unexpected machine failure but taken together they form the hub of a proactive maintenance strategy that will not only identify incipient problems but will extend machine-operating life considerably
Section 1 Shaft Alignment
What is shaft alignment
  • A definition
  • Machine catenary
  • Operation above critical speed
Expressing alignment
  • Alignment parameters
  • Angularity, gap and offset
  • Short flexible couplings
  • Spacer shafts
How precise should alignment be?
  • Alignment tolerances
  • Trouble shooting
  • Coupling strain and shaft deflection
Causes of machine breakdown
  • Couplings and misalignment
  • Bearings
  • Seal wear
  • Machine vibration
  • Symptoms of misalignment
  • Alignment methods and practice
  • Machine installation guidelines
  • Measurement and correction of soft foot
Alignment by Eyesight
Alignment by Dial indicator
  • Trial and error method
  • Rim and face method - by calculation
  • Reverse indicator method calculation
  • Reverse indicator method - by graph
  • Indicator bracket sag measurement
Laser alignment case studies
 
   Section 2 Vibration analysis
  • Condition monitoring
  • The nuts and bolts of a CM system
  • Implementing a CM program
  • Return on a CM investment
  • Why vibration analysis?
Vibration analysis - Basic parameters
Vibration analysis - Transducers
Vibration analysis - Fault detection
  • Fault mode analysis
  • Unbalance
  • Misalignment
  • Looseness
  • Bearing problems
  • Aerodynamic and hydraulic problems
  • Gearbox problems
Vibration analysis - Bearings - Enveloping
  • Vibration analysis - Bearings - shock pulse analysis
  • Vibration analysis - A common sense approach

Section 3 Dynamic balancing
Balancing standards
Balancing correction methods

  • Single plane three point balancing
  • Single plane stroboscopic method
  • Single plane stroboscopic method
  • Single plane stroboscopic method (calculation)
  • Two plane stroboscopic method
Trial weight calculation
Balancing safety
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