vibration measurements on fans

Description:

• Vibration measurements on fans and blowers play a major role in field monitoring operations.
• In addition to the usual signals caused by bearings and imbalance, the vibrations induced by the fan blades can be measured.
• The vibrations are induced by inhomogeneous flow fields.
• The PT 500.18accessory set induces the vibrations magnetically.
• Three fan rotors with differing numbers of blades can be investigated.
• A guard plate covers the rotating fans.
• An obliquely-mounted inertia disk is used to investigate the gyroscopic effect.
• Just as in actual practice, the fan model can also be driven directly via a flexible coupling or by the belt drive PT 500.14.
• The accessory set is mounted on the base plate of the machinery diagnostic base system PT 500.
• To measure and evaluate the experiment, the computerised vibration analyser PT 500.04is required.
• It includes all the necessary sensors, a measuring amplifier and analysis software to record the vibration phenomena.

Technical Details:

Specification:

• investigation of the vibrations of fans
• model of an axial fan with blades
• magnetic induction of blade forces
• obliquely-mounted inertia disk to investigate gyroscopic effects
• 3 fan rotors with different numbers of blades
• guard disk for fan rotors
• gap between magnet and blades adjustable
• can be used with belt drive PT 500.14
• accessory set for PT 500 machinery diagnostic training system
• stackable storage system to house the components 

Technical Data:

• Sheet-steel fan rotor:
  • 3 blades
  • 5 blades
  • 7 blades
  • Ø 204mm
  • speed: 3000min^-1
• Protective disk, made of aluminium:
  • Ø 220mm

Dimensions & Weight:

• L x W x H: 400x300x320mm (storage system)
• Weight: approx. 6kg

Learning Objectives/Experiments:

• vibration measurement on fans
• measurement of blade pass frequency
• identification of the vibration induced by the blades from the vibration spectrum
• effect of dynamic imbalance on the fan
• understanding and interpreting frequency spectra
• use of a computerised vibration analyser

Scope of Delivery:

• 3 fan rotors
• 1 mass disk
• 1 holder
• 1 guard disk
• 1 storage system with foam inlay
• 1 manual

Features:

• vibration measurements on fans
• simulation of blade-induced vibrations

Accessories:

• Required:
• PT 500 Machinery diagnostic system, base unit
• Optional:
• PT 500.14 Belt drive kit

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.