Torsional Vibration Apparatus Model MT 050

* Versatile bench-top experiment system on torsional stiffness and torsional vibration1
* Behavior of two and three masses torsional vibrators1
* Data Acquisition software for data acquisition

Item Description

Sci-tech Torsional Vibration Apparatus Model MT 050 is experimental unit used to explain torsion and torsional vibration in experiments. Demonstrations and student experiments are both foreseen in equal measures. The core of the experiment is a metal torsion bar. With the aid of chucks, mass discs of varying inertia can be attached to the bar. It this way it is possible to assemble torsional vibrator systems with up to three masses. Vibrations can be induced on the system using an electrical exciter supplied from the control unit. An adjustable damper can be used to influence the vibrations. Shaft encoders on the chucks provide the amplitude of vibration as an electrical signal. The control unit conditions these signals and makes them available, e.g., for display on the software
for data acquisition or on an oscilloscope (which must be provided).

Technical Specifications

[1] experimental unit for investigating torsional vibration and torsional stiffness in demonstrations and student experiments
[2] frame made of aluminum with rubber feet
[3] steel torsion bar, corrosion-resistant
[4] 3 mass discs
[5] 4 ball bearing mounted bearing units with chucks and 3 hole flange, the bearing units can be positioned as required
[6] sealed oil damper
[7] exciter with drive crank, excitation amplitudes 1.4°, 1.8°, 2.4°
[8] 4 angle of rotation sensors, 0.03V/°
[9] electrical exciter control unit with digital frequency display, 10-turn potentiometer and supply for the shaft encoders
[10] Software for data acquisition via USB under Windows Vista or Windows 7

Technical Specifications
Torsion test bar
– 1300mm
– D=6mm
corrosion-resistant steel
Stiffness: approx. 1,0Nm/rad/m
– D=150mm, approx. 2,7kg
– D=228mm, approx. 4,8kg
Exciter frequency: 1…20Hz
Damping coefficient: 0,25…3,5 Nm/rad/s