Vibration Fundamentals to System 1

Vibration Fundamenta Fundamentals ls

Topics to be covered Fundamentals of Vibration • Fundamentals • Transducer operation and Selection • Machinery Protection and Management Management systems • Right Practices for Rotating Machineries

Vibration

What is vibration? Why care about vibration? What causes vibration? How do we measure vibration? Measuring vibration

Vibration What is vibration? 

When an object moves back and forth repeatedly

Vibration can be fast or slow Vibration movement can be large or small Why care about vibration???

Machinery Vibration

What Causes Vibration?

Centrifugal Force = A force on an object when it swings in a circle 

Bucket of water

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Weight on a string

Centrifugal Force

Other objects that demonstrate rotating unbalance 

Car tires

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Ceiling fans

Measuring Vibration

We can measure vibration movement Amplitude = How far a vibrating object moves back and forth.

Machinery That Rotates

Vibrating Machinery

Vibrating Machinery

MACHINE DATA 

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Direct Measurements 

Vibration and Position

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Rotor Speed

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Bearing Temperature

Indirect Data 

Process Data

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Performance Data

Operating Modes

A. Steady State :

Constant Machine Speed Process or Load Change

B. Transient :

Start Up Shut Down

C. Slow Roll D. Stopped

TRANSDUCER SYSTEMS

Transducer Operation

Three Parameter normally measured are : Displacement Velocity Acceleration 

Transducer Operation

Types of Transducers Eddy Current Proximity Type Traditional Velocity Tx . Velomitor Velocity Tx. Acceleration Acceleromitor Transducer

Transducer Operation Proximity Transducer