Like industrial machines, everyday structures also experience thermal expansion due to temperature changes. Bridges, for example, have expansion joints to accommodate the expansion and contraction of materials as they heat…
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Maintenance is a necessary function for any facility in industry today. Many corporations view this as an expensive cost of doing business. However, if done correctly, it can be a…
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What is often called “axial alignment” of couplings is really not shaft alignment at all. Proper shaft alignment consists of offset (parallel) alignment and angular alignment, which is really the…
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A vibration analyst’s day is always unpredictable, but there is a general flow that most of us experience. This blog post shares what a typical day looked like for me…
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A common question in vibration analysis is: What is the proper frequency of inspection for a facility’s equipment? Unfortunately, there isn’t a straightforward answer. Several factors must be considered, including…
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Vertically-oriented pumps are used primarily in municipal water, HVAC, and power plant operations, although it is not uncommon to see small vertical pumps in many industrial applications. Many vertical pumps…
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Shaft alignment is a critical process in the maintenance of rotating machinery. It ensures that the centerlines of the shafts are collinear when in operation, which reduces wear and energy…
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In vibration analysis, three key parameters—amplitude, frequency, and phase—are used to identify machinery issues and determine their severity. Each plays a unique role: amplitude reveals the severity of the problem,…
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Basic machine setups are typically made to collect all the data we need for each asset. This is not always possible or reasonable as we would spend far more time…
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When companies seek a laser alignment tool, they often struggle to determine which option is best for their specific requirements. Some may opt for a “cheap” solution and choose the…
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When two vibrations with similar frequencies occur together, a phenomenon called “beating” takes place. This is like hearing two musical notes that are slightly out of tune – the combined…
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Acoem USA has recently begun selling the SoundCam Ultra 3, an easy-to-use acoustic imager and video leak detector that can detect, measure, and display air and gas leaks, vacuum leaks,…
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A few years back, we posted a blog about one of the most common vibration signatures measured on pumps: turbulence. Causes of Turbulence in Pump Systems Several different things…
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The world of Condition Monitoring (CM) has undergone a remarkable transformation since the early 2000s. This blog post chronicles the experience of a mechanical engineer who entered the industrial reliability…
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Setting up vibration alarms in a vibration analysis program can be challenging. Questions such as whether to use overall alarms for acceleration, velocity, or displacement, and whether to measure RMS,…
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