Vibration meters are handheld instruments which are connected to and receive a signal from a vibration transducer and have a capability to process data so as to give an indication of vibration parameters. They are sometimes made specifically to meet certain standard, for example, ISO…
read moreMisalignment can occur when the centerline of coupled shafts are not coincident. Misaligned shafts cause overloading and vibration in a system; this condition can be diagnosed by examining spectral data and looking for specific patterns. Two types of misalignment conditions are possible: • Parallel misalignment…
read moreCondition monitoring can be described as a process of monitoring machine condition, for example: vibration levels. Condition monitoring is a major part of predictive maintenance and is used to detect early vibration problems so that parts can be ordered and maintenance can be scheduled. Why…
read moreStructures are often exposed to high-energy vibration sources that can have disastrous consequences. Many industries are emphasizing lighter structures that use less material and cost less too, however this has a downside; lightweight structures have inherently lower damping characteristics and resonances can cause extremely high…
read moreExcessive 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 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 moreNoise in a vibration signal can creep in from background vibration sources such as noise generated by the machine being monitored, or from adjacent machinery. Typically the noise signal has low amplitudes and is close to zero in the spectral data; however, in some instances…
read moreThere are five main stages in order to successfully accomplish vibration analysis and run a good precision maintenance program; they are: 1. Detection 2. Analysis 3. Root-Cause Analysis 4. Repair and Maintenance 5. Verification Detection The first step in vibration analysis is detecting a problem. This can…
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