Balancing Out the Root Cause

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 […]

Reliable Shock Pulse Evaluation of Anti-Friction Bearing Condition

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 […]

Accuracy, Resolution and other matters…

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 […]

Do you use band alarms for vibration data analysis and trending?

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 […]

Rim & Face, Reverse Indicator and Offset & Direct Angle. What is Best?

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 […]

Strong skills, preventive maintenance and good planning lead to success at the Coffee Creek Treatment Plant in Edmond

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 in 38 years and has won several awards, most recently 2010 Large Wastewater Plant of the […]

Mission: Possible! Flatness Measurement of HP Turbine Shell

June 6, 2011

Recently, a flatness measurement was needed on two halves of an HP turbine shell using 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 wondered if […]

Video Presentation: Vibration Analysis and Laser Alignment "Technologies Working Together"

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 […]