Whirling of Shaft

The TM-1316 Whirling of Shaft apparatus is designed to demonstrate the concept of whirling in shafts and visualize its effects in heavy rotating machinery. The apparatus demonstrates transverse vibration, centrifugal forces, natural oscillation, modes of oscillation, and resonances of rotors with continuous mass distribution. It consists of shafts of different lengths and diameters, center support for shaft end and support, and a motor with variable speed to inspect vibrations at various speeds.

Key Features

• To be bench top, Self contained apparatus for the demonstration of the critical rotational speeds on simply loaded and continuous shafts
• Shafts to be motor driven, speed controlled through self aligning bearings
• Digital display of speed
• Set of different shaft sizes in length and diameter
• Rotor steel disc made of steel
• Micro switch power cut off

Educational Objectives

• Demonstrate the concept of whirling in shafts and visualize its effects in heavy rotating machinery.
• Demonstrate transverse vibration in a shaft when it rotates.
• Understand the effects of centrifugal forces when the shaft is out of balance.
• Demonstrate the multiplication of vibrations when the rotation of the shaft is equal to the natural oscillation of the shaft.
• Demonstrate the modes of oscillation and resonances of rotors with continuous mass distribution.
• Understand oscillatory phenomena using thin, elastic rotor shafts made of high-strength steel.
• Perform experiments using different shaft diameters and bearing arrangements.
• Display the path of the rotor on an oscilloscope using vibration sensors.