Torsional vibration testing experimental platform system

Torsional vibration test benchIt can quickly simulate various states and vibrations of rotating mechanical shaft systems, and perform comparative analysis and diagnosis of various frequency domain states.

a、 Torsion exciter:

The sweep time is adjustable and the torque amplitude is adjustable.

b、 Static state sweep frequency of shaft system:

The shaft can be swept in a stationary state through a torsional exciter.

c、 Sweep frequency at any speed state of the shaft system:

In the state of shaft rotation, the shaft can be swept frequency by following the rotation of the torsional exciter.

d、 Axis fault simulation:

By adjusting the balance weight on the rotating disc on the shaft, it is possible to simulate shaft imbalance (or impeller imbalance) defects, and adjusting the installation position of the shaft seat chassis can simulate shaft misalignment defects.

e、 Variable speed simulation of fault characteristics under different speed conditions, with a variable speed range of75～1450 Rpm。

Torsional vibration test bench

Torsional vibration analysis system

The torsional vibration analysis system combined with a phase channel function collector,Adopting dual clock sampling, with the key phase channel samplingCollecting phase signals at 160MHz, and then using analog sampling frequency to collect torsional vibration signals to obtain torsional vibration time history curves (torsional vibration time history curves cannot be obtained for other products), so the acquisition and analysis systemIn terms of accuracy, speed, functionality, stability, small size, lightweight, anti vibration, anti-interference, etcbe in.

Main functions of the system:

1. Constant speed test, continuous acceleration test, routine test

2. Tested torsional vibration time history curve

3. Tested torsional vibration angle curve

4. Analysis of torsional power spectrum

5. Linear spectral analysis of torsional vibration

6. Torsional order spectrum analysis

7. Bode diagram, polar coordinate diagram, speed frequency spectrum array, speed order spectrum array, speed amplitude phase spectrum array

8. Torsional frequency response curve

Its main performance,systemThe technical indicators are as follows:

1. Number of channels: 2～4通道.

2. Twist angle test: Range: 0-10 degrees (peak); Resolution:0.1 millidegree; (Breaking through international standards)

Accuracy:N ≤ 3000 revolutions per minuteten thousandOne percent;When n>3000 revolutions per minuteten thousandTwo thirds.

3. Testeable torsional vibration frequency: 0.1Hz-5KHz (breaking international standards).

4. The speed range within which the torsion angle can be tested; 2-60000 revolutions per minute (breaking international standards).

5. Speed test: Range 2-60000 revolutions per minute, accuracy: 01‰, resolution: 0.1 revolutions per minute.

6. Output waveform: time history curve, angle history curve.(Breaking through international standards)Traditional methods can only obtain angular curves）.

7、 Spectrum analysis: output speedThe order spectrumof0.5-100Sub harmonic spectrum, accuracy:0.2%Analysis bandwidth: 0.1Hz-5KHz.