We are embarking on a voyage of discovery that entails us calling at the following way stations:
Part 1 – Calculate natural frequency of a pipe
Part 2 – Calculate VIV Vortex
Induced Vibration affecting the pipe
Part 3 – Calculate the effect
of flow induced vibration as flow rates change
Part 4 – Determine the severity of the vibration to see if it is acceptable as is or if we need to make modifications.

Preventive maintenance is a strategy that helps plan regular and routine maintenance to maximize the longevity of assets, equipment, and buildings. It also helps reduce the chances of unexpected equipment failures, costly unplanned downtimes and reactive maintenance. Businesses implement PM strategies by planning and scheduling maintenance activities based on real-time operational data using a computerized maintenance management system (CMMS).

During the 20th century cheap and abundant energy made corrosion a manageable problem. This era is coming to an end. Soon, industry will find there is less funding available for corrosion prevention after adjusting for rising energy costs. At this time, management will be forced to decide whether to continue with traditional corrosion control practices or change to something new with a greater potential for energy savings. For many, this will be an extremely difficult decision to make.

Visiting plants in different corners of the world, we often are asked: “What are the current best practices for preventive maintenance (PM)?” We usually answer that we define preventive maintenance using 95 key elements. We also point out, to some people’s dismay, that there is no single silver bullet for improving PM, but rather many combined efforts will be required to eventually yield results. Here are a few key elements that have been extracted from our program of Current Best Practices (CBP) along with test questions and best practice (BP) examples to help you gauge how well your plant practices measure up.

If you currently have a preventive maintenance (PM) program in place and want to improve it, there are 10 steps you can follow to do so. Following these steps will uncover inefficiencies, including over- and under-scheduled PMs, equipment with PMs that don’t need them, and noncritical equipment that is prioritized over critical equipment for preventive maintenance.

You are 17 times more likely to introduce defects during equipment start-up than during normal equipment operation. Additionally, over 90 percent of rotating equipment has defects at start-up that result in premature equipment failures. What’s causing these start-up defects?