Overview
The Static and Dynamic Balancing Demonstrator consists of a rotating shaft with adjustable eccentric masses at different angular positions and axial planes. Students first demonstrate the unbalanced vibration and then systematically add balance weights to eliminate static (single-plane) and dynamic (two-plane) imbalance, measuring residual vibration before and after balancing. The apparatus covers both graphical (force and couple polygon) and experimental methods of balancing. It develops understanding of why rotating machinery must be balanced to avoid vibration, bearing overloading, noise, and fatigue failure in engines, turbines, fans, and automotive wheels.
Specifications
| Shaft | steel, with multiple mass carriers |
| Eccentric masses | adjustable angular position and radius |
| Number of planes | 4 (for dynamic balancing) |
| Speed range | 100 to 1500 RPM |
| Vibration sensing | vibration meter or accelerometer (optional) |
| Balance planes | 2 adjustable balance planes |
| Frame | rigid steel, with levelling feet |
| Power supply | 220V AC, 50 Hz |