Dynamic Solutions For A Testing World Overview The HGL Rotational ODS+OMA system is a Software & Hardware solution which determines the modal values (natural frequencies, damping and mode shapes) of rotating parts under operating conditions. In order to obtain these measurements, one or more vibration transducers that rotate with the shaft and a high precision phase related speed signal are required The transfer of the vibration signals can either be done by telemetry or slip rings. The identification of te modal values is processed by the Operational Modal Analysis Software (OMA) named ARTeMIS Extractor. Non rotating measurement points can also be considered in the identification of modal values. HGL also offers small data acquisition modules that can rotate with the shaft for large systems at low speed. HGL Rotational ODS + OMA • 2 x 32 + synchronous channels • Frequency range 0-20 kHz • 20 bit resolution • ±10mV - ±10V in 1, 2, 5 steps • IEPE, AC/DC • Time Recording, Offline Analysis • Vibration Monitoring • Sensor database • Tacho signal with 1 Peak/Revolution • Signal transmission by telemetry or slip rings or WLAN-DAQ • Geometry Editor • Tacho signal validation • HGL ODS, ARTeMIS Extractor • Windows 7 Application • Brake Disc Assembly • Wind Turbines • Diesel Engines • Gas Turbines • Industrial Fans • Ship Transmissions Areas • Test Benches • Test Cells • Balancing machines • Dynamometers • Rolling Roads Wind Tunnels Ship Propellers Email: [email protected] Web: www.hgl-dynamics.com

Dynamic Solutions For A Testing World HGL Rotational OMA + ODS The HGL-Rotational OMA+ODS System is especially designed and developed to perform structural testing of rotating parts whilst in running mode. Next to the classic Operation Deflection Shape method (ODS) it‘s now possible to evaluate the modal values (natural frequencies, damping and mode shapes) by using Operational Modal Analysis algorithms (OMA). The vibration measurements are done by transducers which are mounted on the rotating shaft. As the rotational movement is measured by a tacho probe, the position of the rotating transducers...

Dynamic Solutions For A Testing World In a next step, the assignment between measurement channel of the DAQ and degree of freedom of the rotational model must be setup. For analysis it is necessary to know to which channel each measurement belongs, and to which point in the cross section and the according measurement direction. This must also be available for the reference channels and other channels of non rotating points. With HGL Rotational OMA, 6 reference channels can be used in total. For the analysis, it is furthermore necessary to define the channel with the tacho signal. This signal...

Dynamic Solutions For A Testing World HGL Rotational OMA The HGL-Rotational OMA Module can generate complete data sets for the operational modal analysis software ARTeMIS Extractor, again under the assumption that channel assignment is known. This data sets contains: • Wire frame model geometry by points, lines and surfaces, • The channel assignment for each measurement, • The vibration data as time series. This data sets can directly be transferred to the ARTeMIS Extractor. Using the Data Organizer in ARTeMIS Extractor, it is possible the check the transferred data at any time. For the estimation...

Dynamic Solutions For A Testing World XI o HGL Dynamics Ltd HGL Dynamics inc HGL Dynamics France Hamilton Barr House 2431 Directors Row 25 Rue du Mont Olivet Bridge Mews Suite G 78500 Sartrouville Email: [email protected] AkiEfEDR Web: www.hgl-dvnamics.com