June/July 2011 • UPTIME Analyzing only vibration response spectra is difficult since they often don’t clearly match wall chart and textbook examples. As anyone who has practiced vibration analysis knows, vibration signatures obtained on routes are often far from the wall chart examples. The reason for this is that the vibration signatures collected and analyzed represent [...]
June 2011 • PUMPS & SYSTEMS Ensure proper bearing assessment and maintenance with this proven method Of the methods used to assess the operating condition of rolling element bearings, one of the most successful and popular techniques is that of Shock Pulse evaluation. Shock Pulses are a special type of vibration that can be clearly distinguished [...]
Have you ever been forced to check for soft foot when your brackets were less than 10 inches apart and the MTBM’s supports were several feet distant? If you answer yes to that question or if you have ever made foot corrections under similar circumstances, then resolution matters to you. Resolution: The smallest detectable increment [...]
Do you use band alarms for vibration data analysis and trending? If not, then you should consider this very valuable analysis tool. Some vibration software and vibration data collectors allow the use of frequency bands to help the analyst measure and identify specific equipment faults. These frequency bands are actually measured in the vibration data [...]
This question is of importance because there are now a number of alignment systems on the market, using different methods. To answer, ask yourself the question: What do I want to accomplish? You want to bring offset and angularity within tolerance. Rim & Face measures the offset through the RIM reading and measures the angularity [...]
June 2011 • TPO Magazine ACING IT IN OKLAHOMA Strong skills, preventive maintenance and good planning lead to success at the Coffee Creek Treatment Plant in Edmond. The Coffee Creek Wastewater Treatment plant in Edmond, Okla., has had near-perfect compliance in 38 years and has won several awards, most recently 2010 Large Wastewater Plant of the [...]
