June 27, 2011
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 23, 2011
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 […]
June 20, 2011
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 […]
Filed under:
Alignment by
Ana Maria Delgado, CRL
June 15, 2011
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 […]
June 13, 2011
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 […]
Filed under:
Alignment by
Ana Maria Delgado, CRL
June 8, 2011
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 for 38 years and has won several awards, most recently 2010 Large Wastewater Plant of the […]
June 6, 2011
Recently, a flatness measurement was needed on two halves of an HP turbine shell using the LEVALIGN® system. The top half (resting upside down) was a typical quick and easy measurement, as shown below in Figure 1: The second half was not so typical. The studs had to remain in the shell and the customer […]
June 3, 2011
One hour-long presentation by Ray Wonderly, Retired from General Motors Corporation, Owner of Advanced Maintenance Technologies. Originally filmed at the CBM 2011 Condition Based Monitoring Conference at the Reliability Performance Institute in Fort Myers, Florida. This discussion will focus on the use of Vibration Analysis to verify machinery problems or faults, primarily misalignment. Case studies […]