Why this website?

There are many books and on vibration analysis and even machine condition monitoring. Where does this Website fit into this?

This Website is a summary in Blog format of my condition monitoring experiences/cases gathered over many years using various techniques. The one technique that sticks out is the shock pulse method. This is a special technique developed in the sixties specifically for monitoring rolling element bearing condition. It has evolved over the years to do a lot more and to be even more accurate in its bearing operating condition evaluation. As there is not much literature available on this method, except for the manuals available with the instruments, there is a gap in the knowledge about this special technique.
This Website covers the interrelationship between the shock pulse method (SPM) and other vibration analysis and measuring techniques.
In addition there are extensive examples with discussions on each for many different machines and special applications. There are also some examples of fault finding using various techniques to isolate specific machine problems.

What does this Website cover?
It starts with an explanation of the various machine condition monitoring techniques available and where and how they fit into the bigger picture. It is always better to use the correct tool for an application than to use a general tool to try and cover as many basis as possible. This always leads to compromises.
It also explain the advantages and disadvantages of each method.
It gives a detailed description of the shock pulse method.
It also gives extensive real life examples of trends and spectra taken over many years covering many different types of machines. As the data covers nearly 15 years, one can clearly see the improvement in presentation of the software (as well as increased experience level of the writer!).
It also discusses various fault finding examples in between.
At the end we also look at various special applications of the shock pulse method and Condition monitoring statistics. It also looks at the latest development in the Shock Pulse technique, called SPMHD® and HDenv which are further refinements of the shock pulse method as well as vibration analysis to extract the maximum value out of the signal and providing crystal clear results for bearing problems. Its main strength is that it works even at extremely slow rotational speeds.
Firstly explains the various available techniques which will enable you to identify the best possible technique for different applications.
It gives you real life examples of measurements for easy comparison with own measurements. The examples are all extracted from real data and show periods when the machine was running well and when the trend lines started indicating specific problems.
It discusses specific investigations into machine problems which will assist when similar equipment is checked.
It also give ideas on other special applications where this special technique can be used as well as future developments of this technique.

But first we look at the various methods, starting with the basic overall vibration severity levels. We will then look at the vibration analysis and finally look at the very special application of the Shock Pulse Method (SPM).

 


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