LMS Test.Lab Operational Deflection Shape Analysis provides a solution to measure and visualize the structural deformation of rotating machinery in operation. The animated vibration patterns can be analyzed as time-history, at selected fixed frequencies or tracked against rotational speed or any other operational parameter. Measurements are made using a the LMS SCADAS Mobile front-end with 2 embedded tacho inputs, configured with 24 channels for ICP® and Voltage signals, including quasi-static parameters. Extension up to 256 channels with additional Slave frames is possible.
The user-intuitive Signature Testing workbook measures and processes tracked spectral data and enables repetitive measurements from a pre-defined template where layouts and measurement settings are specified. Narrow band spectra are acquired during run-ups, run-downs or sequences of both, at user-controlled time or rpm intervals. Online processing and visualization covers a multitude of formats, including waterfalls and order-, frequency- and octave sections. The time histories for all channels are directly written to the PC hard disk, in parallel to the online spectral processing.
The Geometry workbook allows generation of wireframe and 3D visualization of test and analysis results. All data types permit immediate analysis through animation of the geometry model: scrolling through the time axis like a slow motion camera, or along frequency, order or speed axes like a stroboscope. Any analyzed vibration pattern can be stored for detail analysis or reporting purposes.
The Operational Deflection Shape Analysis workbook is available as a standalone analysis environment or as add-in to the data acquisition workbooks, allowing on-the-spot analysis.
