[An Introduction To Vibration Analysis – Part 5] Welcome to Part 5 of our ongoing introduction to the world of vibration and acoustic measurement and analysis. Here, we look specifically…
[An Introduction To Vibration Analysis – Part 4] Welcome to the fourth part of our ongoing introduction to the world of vibration and acoustic measurement and analysis. In this post,…
[An Introduction To Vibration Analysis - Part 3] Modal analysis is one of the most widely adopted vibration measurement techniques for studying the dynamic behaviour of structures and mechanical components.…
[An Introduction To Vibration Analysis - Part 2] Introduction This post on vibration measurement techniques is the second in our series, introducing vibration analysis. Future posts will continue the exploration…
[An Introduction To Vibration Analysis - Part 1] Introduction For professionals delving into the worlds of automotive, aerospace, or industrial engineering, vibrations are not just mere oscillations; they're a symphony…
This article will look at the basic steps needed to measure noise & vibration in rotating machines. We won’t look in great detail at some of the techniques involved – we deal with these elsewhere on the blog. This material is suitable for a newcomer to the field who understands the basic concepts of noise & vibration analysis but has not dealt with rotating machinery before.
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When using vibration data, especially in conjunction with modelling systems, the measured data is often needed as an acceleration, as a velocity and as a displacement. Sometimes different analysis groups require the measured signals in a different form. Clearly, it is impractical to measure all three at once even if we could. Physically it is nigh on impossible to put three different types of transducer in the same place.
This piece on Claude Shannon is the first in what will become a series of posts looking at the key figures who shaped the thoughts, theories, algorithms and technologies that…
An Impact Hammer double hit is viewed as a common problem, and most hammer impact testing software offers a "Double hit" rejection function. Signals captured with double impacts are not…
Understanding CAN bus (Controller Area Network Bus) is essential to modern automotive engineering. The CAN bus, and its variants, are now universal across the automotive industry and beyond. On many…
Electric vehicle noise & vibration testing is crucial for vehicle development, ensuring the final product’s comfort, safety, and reliability. While electric vehicles (EVs) and internal combustion engine (ICE) vehicles undergo…
Welcome to our latest blog post, where we delve into the fascinating world of resonance and natural frequency! Over the years, we've consistently noticed that our articles exploring these topics…
Tools for motorcycle dynamics analysis - Prosig DATS and Structural Animation Viewer Mechanical engineering covers a vast field of topics, but not many fields feature higher dynamics in time and…
This article discusses quantifying basic vibration signals from three aspects: signal type, signal level, and signal display format. Mathematical expressions and typical applications are also introduced. A simple harmonic vibration…
As mentioned in our previous two articles, when performing experimental modal testing of a structure or component using impact (or ping) testing, it is important to consider and verify the…
As mentioned in our previous article, when performing experimental modal testing of a structure or component using impact (or ping) testing, it is important to consider and verify the validity…
When performing experimental modal testing of a structure or component using impact (or ping) testing, it is important to consider and verify the validity of any results. A modal analysis…
A vital question to be asked before performing hammer testing is - how do I support the testing object? What fixing mechanism to use? Or technically, what are the desired…
The identification of cyclic events in rotational analysis is often key to identifying problems. It is good practice to use a suitable sensor for capturing rotational speed. However, this is…
The analysis of dynamic engine vibration and the accurate measurement of angular vibration is a non-trivial task, as a more in-depth analysis of boundary conditions reveals. Tools for engine vibration…
When analyzing rotating shafts some terms are often confused. This post will attempt to explain the differences. So, what are vibration, torsional vibration and twist? What is Vibration? We measure at…
We've been carefully tracking acoustics related tweets on Twitter and present here a few of the highlights. We do this sort of thing so that you don't have to. Don't…
Amplitude Quantization Error - Summary This article explains what amplitude quantization error is and what can be done to avoid it. Typically quantization error is caused during acquisition of data.…
As its name suggests Operational Deflection Shape analysis shows the vibration pattern experienced during normal operational condition. This is different to other structural vibration tests such as impact hammer tests, bump tests or shaker tests which require a more controlled excitation force and are used to determine specific characteristics of the structure under test, such as natural or resonant frequencies.
Here's our latest collection of noise, vibration and acoustics stories from all corners of the internet. We hope you enjoy them. Leave us a comment. Acoustics via Business Insider Owl…
