Expertise: Tolerance Analysis

Definition

Optimization of fits and clearances between parts in an assembly.

Our Expertise

No physical parameter is perfect.  Engineers must deal with the fact that a dimension, resistor-value, chemical concentration, or spring rate is known to within some +/- tolerance.  Everything is described as a statistical distribution about an expected value.

At the beginning of a project, the skilled design engineer is incorporating approaches and architectures that reduce the ways in which these tolerances can “stack up” and cause problems.

Towards the end of a project, engineers perform statistical tolerance analyses to determine the impact those stack-ups.

 

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