Vibration generated in rotating equipment, for example compressors, pumps, fans, etc, are transmitted through foundation to other machines. Vibration of the plant floor contains a wide frequency spectrum. It is possible that one of these frequencies fall near a natural frequency of a particular machine.…
read moreAny mechanical looseness in a rotating machine will typically generate a peak in the spectral data at the 1X speed (synchronous speed). There are a few types of looseness that may occur: 1. Rotating looseness 2. Structural looseness Rotating Looseness This form of mechanical looseness is…
read moreMachines are typically balanced in one plane or two planes by adding or removing material. The previous article titled “Balancing in Manufacturing“, mentioned different types of imbalance in rotating machinery, and the importance of why machines have to be balanced. The question is: How do…
read moreImbalance in Rotating Machinery Examples of mass imbalance: unbalanced propeller and uneven distribution of electrical winding The word imbalance, unbalanced, and unbalanced mass are interchangeable. Vibration in rotating machinery is commonly caused by imbalance. Imbalance is a condition where a shaft’s rotational axis and weight…
read moreRotating equipment encompasses a wide range of products such as washing machines, power tools, fans, compressors, to name a few. These products are exposed to varying environments and operating conditions that can have a longterm impact on their performance. As an example, pumps are ubiquitous in industrial plants and…
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