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Updated in 2017/11/5 下午 11:15:30      Viewed: 9 times      (Journal Article)
Marine Science - Technology Journal (Vietnam) 50-04/2017: 5 - 9 (2017)

PROBLEMS IN MAKING THE MULTI-CHANNEL VIBRATION MEASUREMENT SYSTEM ON THE D-G SET 110 KW IN VIETNAM MARITIME UNIVERSITY

TSKH Đ.Đ.LƯU PGS , ThS. L.H.THIỆN , ThS. H.V.SĨ , ThS. C.Đ.Hạnh
ABSTRACT

The article refers to solve some problems in the making the complexity multi-channel vibro-measurement system at VietNam Maritime University (MVMS-VMU01), applied to study vibrations on the D-G set 110 kW, in the IRD –VMU. The system consists of two sub-systems: The first one consists 2 non-contact measured sensors for torsional and axial vibrations (type strain gauge) with WiFi transfer of the data from the layed sensors on the rotated shaft to DAQ-NI 9237; The last one -5 channel acceleration measurement, 2 channel position torsions (phases) of the two disks (electro-magnetic) on the shaft, and 1-channel trigger (phase) measurement with cable connection beetwen the sensors and DAQ-NI 9234. In the paper, the authords solve problems regarding to the comprehensive measurements of the two sub-channels and the measured signals with the phases of working cylinders of the diesel, express monitoring, saving and reading the measured data. The problems are related with NI and LabView (National Instruments, USA).

Key words: Multi-channel vibro-measurement system, vibration measurement by strain gauges, torsional vibration measurement; axial vibration measurement, MVMS-VMU01.
ISSN: 1859-316X