Excessive vibration in piping can cause destructive forces, large displacement or deformation which can result in serious damage or even catastrophic failure to the system. A piping system includes the pipework, pipe joint, welded seams, pipe hangers, flanges, and machinery connected to it. Piping vibration…
read moreVibration 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 moreThe most important step before purchasing a new machine is to establish acceptance testing. Acceptance testing can be used to ensure the new machine is free from faults and runs smoothly before placing it in service. The purchase order can specify where and how vibration…
read moreResonance is a condition where a machine is operating at a frequency close to or at the natural frequency of its structure. This condition excites the structure and causes high amplitude vibrations; this will show up as a “hump” at the resonant frequency in the spectral data…
read moreIt has been a challenge to reduce unwanted vibration in rotating equipment. The impact of this vibration can range from premature failure of the machine to consumer’s perception of poor product quality. Many designers and product engineers from all industries have been working diligently to…
read moreNumerous companies specialize in supplying measurement and data acquisition systems. Equipment is available at various price points and with different capabilities. Selecting the appropriate equipment can save you time and money if done correctly. Before purchasing any equipment, it is important to identify your particular…
read moreRolling element bearings have been widely used in rotating equipment. They are designed to carry load and provide constrained motion between two or more parts. A rolling element bearing consists of outer race, rolling elements (balls, cylindrical roller, etc), inner race, and a cage to…
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 moreThe main functions of a rolling bearing are to carry load and provide near frictionless environment to support and guide a rotating shaft. Rolling bearings have four components: outer race, rolling elements, inner race, and a cage to support and guide the rolling elements. The…
read moreA gear consists of a rotating part with teeth or cogs that are used to mesh with other gears in order to transmit torque. Gears are useful for changing the speed, torque and direction of the source of power. Most gears rotate, however linear motion…
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