09 September 2010
Welcome to our latest Newsletter about the Vibration & Environmental test world in addition to the latest information from m+p international.
The m+p international Newsletter is circulated exclusively to test engineers and managers involved in vibration test, data acquisition and signal analysis and hopes to bring you some useful technical snippets gleaned from around the world and from around the test and measurement industry. We always look forward to your inputs, send us your views to firstname.lastname@example.org.
Siemens AG in Duisburg/Germany successfully utilizes m+p international’s Coda data acquisition units for continuous data acquisition, data processing and real-time monitoring at their turbo compressor test facility. Recently, Siemens ordered a mobile data acquisition unit for on-site turbo compressor testing. This mobile Coda system will support 96 channels to measure temperatures, pressures, flows and strains. It consists of a 19” housing, a VXIbus mainframe and the signal conditioning units. Operation is done via an external laptop which will be connected via CAT-5 and fiber optics cables.
The stationary Coda data acquisition units which have been used at Siemens for some time now acquire and verify not only the performance data and thermodynamical parameters but also the vibration data of the turbo compressors. Several compressors are tested in parallel for acceptance tests. A single stationary data acquisition unit acquires up to 168 process signals and 48 vibration signals.
For more information on this interesting application please read our 2-page Application Note “Continuous Data Acquisition and Real-Time Monitoring of Turbo Compressors”.
2. How to Understand and Reduce Fan Vibration
m+p’s SO Analyzer was used to investigate the dynamic reEsponse of a fan system which exhibited high levels of vibration as it swept up to its normal operating speed. The resulting fatigue was significantly compromising reliability and although a number of solutions had been suggested it was not clear which would offer the most cost effective solution.
The fan was instrumented with a tachometer which provided a pulse every revolution. This signal was captured to trigger acquisition and enables the vibration amplitudes to be measured from accelerometers and plotted against frequency and RPM.
The detailed Application Note “Fan Housing Vibration” discusses how, from this initial measurement, order tracks and Operating Deflection Shape analysis were used to diagnose the root cause and understand the structural effects of the vibration and then how other tools within SO Analyzer were used to develop and implement a very simple solution reducing vibration levels by nearly 30%.
3. New Brochure: SO Analyzer for N+V Measurement, Analysis and Reporting
Our SO Analyzer is the ideal tool for precise and efficient noise and vibration measurements, third-party data import/export, data analysis and reporting in a single package. The new 8-page SO Analyzer brochure will give you a good overview of the comprehensive application coverage, the exceptional functionality and the wide variety of supported measurement hardware.
Please download the new SO Analyzer brochure.
4. Dates for Your Diary
Do you need to do more with less, need flexible vibration controller and analyzer solutions, cost-effective, turnkey data acquisition? Then visit us at the following exhibitions in October:
26th Space Simulation Conference
81st Shock & Vibration Symposium
You can see the latest revision 4.0 of our SO Analyzer for N+V measurement and analysis, the compact 4-32 channel VibPilot instrument for vibration control and N+V applications, the latest VibControl products for advanced vibration testing, our digital acoustic control system as well as our full-featured data acquisition system
We would be pleased to see you.
Well, that brings to a close this edition of the m+p international Newsletter. If there are items of info you would like to see here or if you have useful tips for the rest of the environmental test world, then please send us your pointers and we'll include them in the next edition.
Please forward this Newsletter to your colleagues if you have found it of interest, spread the word...
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