MDU 机器诊断

手册中包含的指导实践练习

1. Assessment of the vibration state of a machine.
2. Measuring the vibrations caused by unbalanced operation ofrigid rotors in 1 and 2 planes.
3. Study of the basic essentials of the vibration measurement in shafts and bearings.
4. Study of the basic magnitudes and parameters.
5. Use of measuring sensors and instruments.
6. Understanding the influence of speed and shaft and recorder arrangements.
7. Learning to balance rigid shafts in operation and alignment between motor and bearing.
8. Understanding and interpreting the frequency spectra.
9. Learning about the different vibration signals.
10. Applying the FFT analysis correctly.
11. Measuring the speed, oscillation travel, oscillation speed and acceleration.
12. Learning about the effects of alignment on different types of couplings.
13. Learning about the effects of speed on vibration behavior.
14. Learning about the effects of the balanced and unbalanced elastic rotor (MDU-SES kit required).
15. Study of the variation of a typical vibration behavior (vibration velocity, frequency, amplitude, and phase) due to a fissure (MDU-SRS kit required).
16. Identifying cracks and fissures in shafts through acceleration curves and order analysis (MDU-SRS required).
17. Identifying a fissure through the variation of a vibration spectrum (MDU-SRS required).
18. Estimating the life cycle of a roller bearing (MDU-SRBF required).
19. Identifying faulty roller bearings (MDU-SRBF required).
20. Checking the effects of roller bearing faults on outer and inner ring, or the roller bearing body on the vibration spectrum (MDU-SRBF required).
21. Understanding the effect of ring gear hardness on claw couplings (MDU-SCO required).
22. Comparing the curved tooth, bolt, flange or claw couplings (MDU-SCO required).
23. Understanding the importance of belt tension in vibration behavior (MDU-SBD required).
24. Checking the effect of the eccentricity in pulleys and the speed in vibration behavior (MDU-SBD required).
25. Comparison between defective and non-defective belts (MDU-SBD required).
26. Understanding and interpreting the frequency spectra in order to differentiate between defective and non-defective belts (MDU-SBD required).
27. Identifying defects in the gears according to their vibration behavior (MDU-SSDG required).
28. Learning about the effect of the toothed gear, the lubrication used and the wheelbase and the backlash (MDU-SSDG required).
29. Identifying wear on the rod and piston (MDU-SCM required).
30. Learning about the effect of bearing clearance and impacts (MDU-SCM required).
31. Study of the vibrations of a centrifugal pump in operation (MDUSSCPrequired).
32. Understanding the cavitation phenomenon in a centrifugal pump (MDU-SSCP required).
33. Identifying vibrations caused by the movable vanes in the vibration spectrum (MDU-SSCP required).
34. Measuring the pitch frequency between movable vanes (MDU-SSCP required).
35. Measuring the blower vibrations (MDU-SSCP required).
36. Learning about the effect of an asymmetric air gap on the vibration behavior and the electromagnetic and performance losses (MDU-SEV required).
37. Learning about the effect of the electrical windings on vibration behavior (MDU-SEV required).