While we have looked at the mechanics and science behind dynamic balancing in the past, for many readers it might be a dry subject that does not seem to have application outside of engineering. However, the need for balancing in one for or another is around most of us every day. This short post looks at applications in every day life that might help many to visualise the needs for and uses of dynamic balancing.

Dynamic balancing of rotating machinery is crucial when building energy efficient products. When rotating equipment is imbalanced, it causes significant vibration because of exerting centripetal and centrifugal forces when rotating. The vibration yields noise as well as heat, both of which are ways of wasting energy because the energy isn’t focused on a useful task and lowers the energy efficiency of the equipment.

The realization that the world has a limited supply of energy has made producing and using more energy efficient products a major objective. Today, dynamic balancing can assist where energy efficiency standards are being set in various areas such as home appliances in order to reach this objective. For example, utilizing highly efficient washing machines is crucial because they’re ubiquitous and are used in almost every home. Wet laundry in washing machines leads to big mass imbalances which consequently causes huge vibrations and lowers energy efficiency. Additionally, vibration inhibits washing machines from running faster. A slower spin means that less water is being drawn from the clothes on every cycle and thus added cost of drying the clothes later. Washing machines are being sold in their millions every year and it’s thus crucial to find means of making them more energy efficient, basically by tackling the vibration issue.

Rotation balancing – an aspect of dynamic balancing – is crucial in rotating machinery so as to enhance energy efficiency. Imbalanced rotation machines produce significant vibrations which waste energy. Apart from causing unacceptable noise levels, excessive vibration also significantly lowers the lifespan of shaft bearings. As such, it is ideal to eliminate every cause of vibration in order to run the machine smoothly.

As science tells us, perfection is not possible, and there’s always some sort of imbalance or vibration that remain. We can however reduce the imbalance to a level that doesn’t cause massive impact on the bearing and that reduces the noise to an acceptable level. It is our task at WDB Wilkinson Dynamic Balancing – to understand and mitigate these forces to the best possible effect.

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