tolerance analysis

statistical tolerance analysis basics: Monte Carlo Simulation

image courtesy epcp   First thing first, a Monte Carlo stack up typically uses a normal distribution as a guide for it’s simulation, so I highly recommend that you read my post on RSS Tolerance Analysis so that you understand how to derive that normal distribution in the first place. monte carlo simulation theory The theory [...]

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Thumbnail image for statistical tolerance analysis basics: Root Sum Square (RSS)

statistical tolerance analysis basics: Root Sum Square (RSS)

In my last post on worst-case tolerance analysis I concluded with the fact that the worst-case method, although extremely safe, is also extremely expensive. Allow me to elaborate, then offer a resolution in the form of statistical tolerance analysis. cost A worst-case tolerance analysis is great to make sure that your parts will always fit, but [...]

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Thumbnail image for statistical tolerance analysis basics: worst-case tolerance analysis

statistical tolerance analysis basics: worst-case tolerance analysis

fair warning: if you’ve never heard the phrase “tolerance analysis”, you’ll likely never have to perform it and should just spend the next 5 minutes elsewhere. Otherwise… A well-performed tolerance analysis will add years to your life. No worrying about parts fitting together, no worries about sloppy fits.  A well-done tolerance analysis both proves the [...]

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