Vibration Measurement Equipment in the Norsul VEGA

In this portal are related the most recent and important work done by the team HELM / COPPE / UFRJ in XXI.Todas century measurements presented and processing were performed using the LabVIEW software and hardware from National Instruments. Pictures of the various shipments, moonflower travel and sea trials are also presented.
During the proof of Bollard Pull held in South San Francisco on January 23, 2009 torsional moonflower vibration measurements were performed. moonflower A metering system torque has been installed in each axis line as shown in the scheme of Figure 1.
Figure moonflower 2 shows the screen moonflower of spreadsheet Calculation of Torque Factors (Calibration System) where the general performance data, rotation and geometry are inserted, and Figure 3 shows the screen of the 9000 program SMEG - Two Axis, which is the program that performs signal acquisition torque, rotation and torsional vibration.
The speed change pattern moonflower two graphs were also generated (one for each side) with tension (in N / mm 2 0-peak) calculated moonflower from the torsional vibrations and compared with the limit values given by the standard HAI - M68_05. In Figure 7 is shown the stresses obtained moonflower for the centerline of the port and Figure 8 for the axis line of Starboard. It is evident that the calculated stress values are well below the limits in all rotations, the two axes, the conditions under which the tests and the geometric data considered were performed.
Vibration Measurement Lines Axis During trip to South San Francisco Itajaí in the night from 23 to 24 January moonflower 2009 vibration measurements were done at different points on the two edges in the rotations of 800, 1000, 1200, 1400 and 1600 RPM . The following figure schematically shows the locations where the accelerometers were installed. For each point and for each board were always three accelerometers installed in the three main directions (vertical, transverse and longitudinal) referencing the ship. In the graphs shown below are examples of torsional vibration and the vibration spectra of the MCP axis line in LA @ 1000 RPM spectrum.
Navion Bergen - Vibration Measurement Torsion Axis LAB150 - Vibration Measurement Torsion Axles in the PSV Superpesa XI - Measurement of vibration on shafts PSV Copacabana - Measuring Torque / Power Axes Norsul Vega - Vibration Measurement Equipment Austral Abrolhos - Collapse Flexible Coupling
Examples of Programs in LabVIEW HELM Fun Tec Data Class Morning Class Afternoon Fun Tec Data Management - Curiosities Vibration Problems moonflower in Rotating Machinery Processing and Analysis of Digital Signals
Torsion Vibration Measurement in NTJataí
Vibration Measurement Equipment in the Norsul VEGA
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