January 31, 2012
PLANT SERVICES • January 2012 Vibration analysis and condition monitoring are part of a bigger picture. Reducing maintenance cost, reducing production cost, improving uptime, reducing risk, improving safety, and improving product quality are some of the essential drivers for deploying vibration analysis and other predictive maintenance tools. They should be goals of any plant or [...]
January 30, 2012
When experiencing lack of repeatability using a laser system, check the components for looseness: Brackets: Make sure that they are rigidly attached to the shafts (or solid coupling hubs). The surface imperfection where the brackets are mounted plays no role provided the shafts are rotated and the bracket is firmly attached to the surface. Risers: [...]
January 27, 2012
Our LEVALIGN EXPERT Flatness and Leveling Measuring System with an Automatic Rotating Laser has been selected by the subscribers to Plant Engineering magazine as a winner in the 2011 Product of the Year Awards. The annual Product of the Year recognition, now in its 24th year, is the manufacturing and engineering industry standard for new product [...]
January 25, 2012
ENERGY-TECH • January 2012 At a power generating station in Florida, a severe electrical fault caused such extensive damage to a 40 MW gas turbine-driven generator that a complete replacement of the generator stator was required. An on-site spare generator core was available, but needed the faulted generator’s bearing support brackets to be installed to make [...]
January 23, 2012
Fault frequencies are very important in vibration analysis, because they allow the analyst to correlate vibration data to specific components in the equipment that may be in some stage of failure (equipment faults). Fault frequencies change with any adjustment in the speed of the equipment being monitored. Most modern vibration data collectors and software will automatically [...]
January 16, 2012
When aligning a vertical flange-mounted machine, it can be helpful to tweak the flange configuration in your laser alignment system to take advantage of different shimming alternatives. For instance, if the OD of the flange is larger than the diameter of the mounting bolt circle, a good laser system will compensate for this by taking [...]
