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Comparing Modal analysis FEA vs Experimental / High modal density problem
I doubt you have actual diametral modes of concern unless all blades are exactly the same as the FEA analysis assumes. Mistuning - one of many references is: Castanier, M. P., Ceccio S. L., Epureanu, B, I., Pierre, C, (2007) “Next-Generation Modeling, Analysis, and Testing of the Vibration of...- FRANKOK
- Post #5
- Forum: Mechanical Acoustics/Vibration engineering
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Floating ring seal
Search http://turbolab.tamu.edu/proc/ many sources at TAMU such as http://turbolab.tamu.edu/uploads/files/trc/XLTRC2%20Brochure.pdf- FRANKOK
- Post #3
- Forum: Machines & Machining engineering
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Pinion Gear Second Critical at 2X
Pinion is in a VFD motor driven double helical gear with upmesh speed increaser driving a compressor. As for many similar designs the first lateral critical speed is above operating speed. However there is a large 2X amplitude peak mainly on the coupling end when speed is at 1/2 the calculated...- FRANKOK
- Thread
- Replies: 0
- Forum: Mechanical engineering general discussion
