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  1. Strong

    Twin Lobe Blower taking Extra Amp Problem

    In addition to the mechanical fault issues mentioned, consider suction pressure. Blower load and motor current are are affected by both suction and discharge pressures. Check suction for blockage, such as air/intake filter or other upstream issues. Walt
  2. Strong

    Online Cleaning of Compressor Impellers

    If you do water/steam injection, then vibration may occur from uneven particle removal or possibly uneven temperature -- the "Morton Effect"...
  3. Strong

    Career progression and learning as a Static equipment maintenance engineer

    An interesting article here: https://www.taaltech.com/7-key-trends-in-static-and-rotating-equipment-engineering/ From this general search...
  4. Strong

    offshore installation vs onshore installation

    The word "installation" in the OP Title could have two meanings; final location or where the rotating equipment is moved into final location in plat/vessel. Ship machinery are typically installed for new construction or major repairs or at a dock with direct shore access. No experience with...
  5. Strong

    500 RPM 8000 kW hydro generator dimensions

    Thanks Muthu!
  6. Strong

    500 RPM 8000 kW hydro generator dimensions

    Muthu, Is the generator driven by a diesel engine with soft coupling? Walt
  7. Strong

    offshore installation vs onshore installation

    The foundation and support structure dynamics can be very different. What is the reason for your general question? Walt
  8. Strong

    Maximum shim size under the 250 KW motor

    Suggest at least tack-welding the thick plate to bed/foundation. Leave the thin shims loose or install tapered pins (with top nuts) from machine feet into thick plate to reduce shifting shaft alignment. Walt
  9. Strong

    500 RPM 8000 kW hydro generator dimensions

    https://leroy-somer.com/documentation_pdf/4418k_en.pdf https://www.vem.fi/wp-content/uploads/2018/04/AEM-Synchronous-generators-catalogue-2011.pdf https://www.bing.com/search?q=8+mw+500+rpm+12+pole+50+hz+horizontal+synch+hydro+generator&FORM=HDRSC1...
  10. Strong

    Maximum shim size under the 250 KW motor

    Note that your sketcs shows the Vertical (d) dimension difference to be 50 mm. That is quite a difference for motor of same HP and Frame Size! Thick plates, if machined flat, should not affect vibrations if soft-foot and shaft alignmnet are good. Allow 1 to 2 mm of height for thin SS shims to...
  11. Strong

    Pool cover design

    Ah, summertime sipping drinks at poolside. How to keep those pesky leaves out of the pool this fall! Walt
  12. Strong

    Gas turbine high vertical vibrations at 1X

    If bearing vibrations are normal in the horizontal and axial/thrust direction and only high in vertical direction,then possible causes are: excessive bearing clearance or resonant structure. The resonant structure hypothesis can be verified by variable speed (run up) test and/or impact-response...
  13. Strong

    Preventing Jamming: How to Re-Engage a Planet Gear with a Gapped Ring Gear

    Perhaps you are making you own version of a drywall screw gun? https://drillly.com/drywall-screw-gun/ Walt
  14. Strong

    Dear colleagues what is the applica

    Resonant or natural frequency testing may be used. https://www.modalshop.com/ndt The challenge would be small part size to measure high natural frequencies. I suggest prototye testing of good and known-bad parts. If that works, then automatic or semi-automatic test stations can be configured...
  15. Strong

    Inexplicable motor failures

    I did not see in the OP what type of pump. If centrifugal type, then motor load drops with pump load (reduced flow). Walt
  16. Strong

    Talk me down, please

    Robots and Drones? Walt
  17. Strong

    Need Help with Pump Selection for Home Appliance Development

    Don't forget a pump discharge check valve! Walt
  18. Strong

    Engineering Office Layout.

    With only 12 people, why not list the most common selection issues, then discuss and then ALL can vote. If there is a common choice, then do it. If not, then the manager can make the choice explain why, and then move on. My opinion of the pictured cubical is that it for telemarketers and not for...
  19. Strong

    Learning How to Type

    When I was in High School the students that were not going to college had typing class, and the rest of use did not. Very frustrating getting through college (BSME) and a long engineering career without good typing skills! I made several efforts to learn to type, but I was unable to master the...
  20. Strong

    High frequency vibration in large Fan

    Considering: VFD, high load, and high frequency (no spectrum or identified frequencies)vibrations, then the "fault" could be EDM surface erosion in one of the bearings...

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