Question

a) Flow turbulence and cavitation in a centrifugal pump generate a similar sound to the human ear. Explain how vibration analysis would help you to determine which is which.

b) Briefly explain how vibration analysis assists with predictive maintenance.

c) How would you differentiate between the vibration signatures for angular misalignment and a bent shaft?

d) What is Predictive Maintenance?

e) What three (3) factors would you have to consider when adopting Predictive Maintenance?

My subject is Plant Engineering

Answer 1

rool touch ame. Each 1 the human sensors used to These quantify - detected 19) Vibration analysis: Allow turbulence de cavitation) S No two vibrations are same and frequency are unique the human that even cannot distinguish. A critical component of vibration analysis involve sensons. These sensors used to the magnitude of vibration known as vibration amplitucha.. Pralysis collects vibrations from various equipment Censors) and measures them against Grown failure - vibrations to identify potential failure points. D) Vibration anelysis assista predictive maintenamie: O Vibration analysis can provide the imperative sensitivity, especially for any rotating machinery, I to evaluate the condition of equipment & awvid failures. 1 The strong magnet or wired connection is I frequently used for portable collection devices. It allows E the person collecting the data to measure many points with one machine and sensor, 1 c) Angular misalignment. It happens when the motor shaft is at an angular displacement with the pump Shaft, but both shafts still operate in same horizontal plene. Similarly angular mis alignment will happen in vertical allo Bad Bent of shaft? It is a parallel misalignment. De occurs when the shaft centre lines are parallel but are offset from each other. O

Preckitwe maintename: : Predictive maintenance is a technique that uses Undition - monitoring tools and techniques to track the performance of equipment during normal operation to detect possible defects and fix them before they result in failure. Ideally, it allows the maintenance frequency as low as possible e) factors whsides while adopting Predictive maintenama & Number of machines and equipment s failure rate s Average cost for the maintenance og a machine it depends of a lot on the procedures and on last distribution)