Below some realized projects are presented. For confidentiality reasons descriptions are abstracted. On-site operations were made next to Germany in the following countries: France, Sweden, Finland, Croatia, Turkey, Israel, China, Australia.
1. Vibration analyses of centrifugal fans and feed water pumps
Prior to a scheduled plant shutdown vibration analyses of centrifugal fans and feed water pumps were made. These were used to evaluate machine condition, especially of bearings and defining and planning of necessary actions.
2. Supervision of installation and commissioning of tunnel ventilation
In a large street tunnel in south Europe supervision of installation and commissioning of jet and axial fans was made, as well as random vibration measurements. Additionally operational staff has been trained for operation and maintenance of fans.
3. Trouble shooting at a centrifugal fan
During commissioning of a centrifugal fan, the specified operational point could not be achieved. Analysis of the system, including supporting measurements, identified strongly disturbed inflow, caused by a poor system layout as root cause. For improvement of the situation system modifications were suggested. These were implemented by the customer and gave the expected effect.
4. Vibration analysis of vessel main engine
Vibrational condition of the main engine was determined by offline vibration measurement. Analysis and evaluating of the results were made according to ISO 10816-6.
5. Engineering of measurement instrumentation
Engineering of measurement instrumentation was made for a mobile application within Aerospace sector. This included specification and selection of appropriate components (sensors, data aquisition, cabling), design and production of a customized battery system, as well as commissioning and supervision of the system during testing.
6. Bearing appraisal
Prior to a planned oil exchange, appraisal of steam turbine fluid bearings as well as of the oil system was made, to support planning and defining necessary actions.
7. Measurement of structure-born and airborn noise
Measurements of structure-born and airborn noise, as well as actions to reduce noise levels (field balancing, belt drive optimization) were made at a HVAC system for ships.
8. Modal analysis
Modal analysis was made at a new developed industrial machine to identify natural frequencies as well as corresponding vibrational modes.
9. Tunnel measurements
Flow grid measurements, as well as vibration measurements at jet and axial fans were made in various street tunnels during commissioning.
10. Field balancing
Field balancing was made at several axial fans and small steam turbines in Germany and abroad.
11. Vibration data analysis
For a customer analysis of existing offline vibration data was made, which originated from a steam turbine with increased vibration levels. Results gave hints of problems within one of the bearings. During recommended bearing inspection severe wear of babbitt surfaces was found.
12. Appraisal of oil data and deposits
During bearing inspection at a steam turbine, severe oil deposits were found. For appraisal of the situation and if probably an oil problem is present detailed analysis of available oil data and findings at bearings was made.
13. Damage analysis of an axial fan
Within low operational time an axial flue gas fan had several failures of bearings. On behalf of the customer a detailed analysis of occured damages and failure history was made. Several weak points could be identified, e. g. fan operation mode and concrete actions were recommended. Meanwhile the fan is operating troublefree a fairly long time.