Marine Engine Test Rig

Test rig description

The marine engine test rig mainly consists of a diesel engine, a gearbox, a propeller and its auxiliary test facilities. The speed of the engine can be controlled via the control panel.

Instrumentation

The running status of the power system can be measured and stored, which involves sensor placement, NI data acquisition and computer processing. It covers the temperature and pressure of key components, vibrations and rotating speed of the engine and propeller. An in-house software is developed to automatically demonstrate critical running index and store data in manageable format.

Typical fault simulation

The test rig can simulate over twenty types of faults regarding different parts of the power system. Among them the most common ones are listed in the Table 1.

No.Fault positionFault type
1Diesel EngineEngine Misfire
2Diesel EngineIncomplete Combustion
3Diesel EngineNozzle Wear and Leakage
4GearboxWear
5GearboxTooth Crack
6GearboxFatigue Pitting
7PropellerMisalignment
8PropellerBlade Contamination
9PropellerBlockage of Hydraulic System
Table 1 Typical fault simulation

Key publications

  • [1] Xu, Y., Fu, C., Hu, N., Huang, B., Gu, F., Ball, A.D. A phase linearisation–based modulation signal bispectrum for analysing cyclostationary bearing signals. Structural Health Monitoring, 2020, DOI: 10.1177/1475921720949827.
  • [2] Xu, Y., Huang, B., Yun, Y., Cattley, R., Gu, F., Ball, A.D. Model based IAS analysis for fault detection and diagnosis of IC engine powertrains. Energies, 2020, 13(3), 565.

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