2012年1月5日星期四

Problems Associated With Excessive Vibration

Vibration Analysis involves recording vibrations from a machine (or individual component) and then analysis the vibration to determine what parts are not running correctly, and the machines overall condition. All machines vibrate, at a natural frequency. However, if you allow them to vibrate above and beyond this, there are plenty of serious implications.

To start off with, vibrations are very rarely intended. On the odd occasion machines are designed to vibrate (like screens and vibrators) but on the whole machines that vibrpikachu nikes buy ate are poorly maintained. The first thing that excessive vibration causes is a greater usage of electricity. Whilst this might seem insignificant, you would be surprised at the amount of money thrown away simply because your equipment is not running correctly. Another implication is excessive noise. Walk past 2 identical pumps, with one vibrating and the other not and you will very quickly notice the difference.

A more serious issue with excessive vibration is the potential for severe machine damage. Take a turbine for example. If this is allowed to vibrate much passed its natural frequency, the risk of imminent failure becomes huge. What I mean by serious failure is not perhaps that a bearing is going to go, but the vibradubai nike dunks for sale tions will literally be enough to make the machine implode and completely self destruct. If you have ever seen a turbine fail, you will know that it is extremely dangerous, and what the deuce nikes very costly too. The idea behind Vibration Analysis is that you can tell the equipments condition, and turn it off before something like this happens.

When failures like the one above cost hundreds of thousands of dollars, there is serious pressure put on correct vibration analysis. Excessive vibrations also cause a greater level of wear on other parts of the machine. a fan blade is heavier than the rest, then the whole fan will vibrate. This not only puts more stress on the bearings, but it puts more stress on the shaft, coupling and entire drive.

If it is at all possible, vibrations need to be kept to a minimum. By making use of Vibration Analysis, you can tell at any given time the condition of equipment being monitored. You can even narrow vibrations down to specific machine components. Perhaps its just a bearing gone in that pump, causing it to vibrate. There is no way that you could tell that without making use of such an advanced predictive maintenance technique like Vibration monitoring.

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