Here is a series of case studies for Vibration Solutions.  The case studies require Adobe Acrobat Reader to view.  The files are each approximately 2MB.

• Simple, Low-Cost Vibration Monitoring of Cooling Towers: The installation of low-cost vibration hardware for monitoring inaccessible coolant tower components has proved to save Bristol Myers Squibb time and money.  Here, they give Machine Plant and Systems Monitor the full story.
• Vibration Monitoring at Weirton Steel:  The mission of the Predictive Maintenance (PdM) Department at Weirton Steel is to provide high-quality condition based monitoring and proactive maintenance services. Over 30,000 routine vibration collection points are monitored regularly, with critical machines monitored monthly and the other points monitored either bimonthly or quarterly. As a result of this effort, over 2,250 work orders are generated by the PdM department annually. And last year, the PdM department documented over $5 million in product loss avoidance due to vibration analysis alone.
• Simple, Low-Cost Vibration Monitoring of Air Handlers at Johnson Controls: Monitoring the vibration of rotating components of enclosed air handling units presents a unique challenge for predictive maintenance programs. The air handling units are expected to maintain consistent environmental conditions, such as flow rate, temperature, and humidity, and often to extremely limited tolerances.
• Accelerometers for Wind Turbines: Wind turbines are a growing source of alternative clean energy sources. As individual machines, or combined as multiple machines to form wind farms, they are a growing presence in today’s world and energy needs.  This article discusses the use of accelerometers on the wind turbines to allow measurement of the rotational frequencies.