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# Zou et al2004 zou z morse ep a gap based approach to

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Unformatted text preview: iders the worst possible combinations of individual tolerances and examines the functional characteristic. In the case of tolerance analysis of gears, we are not sure that the worse kinematic error corresponds to the worse possible configurations of tolerances. Statistical tolerancing is a more practical and economical way of looking at tolerances and works on setting the tolerances so as to assure a desired yield. 3.1. Statistical tolerances analysis Usually, statistical tolerance analysis uses a relationship of the form: Y= f(X1,X2, … Xn) (12) where Y is the response (characteristic such as gap or functional characteristics) of the assembly and X={X1,X2, … Xn} are the values of some characteristics (such as situation deviations or/and intrinsic deviations) of the individual parts or subassemblies making up the assembly. The function f is the assembly response function. The relationship can exist in any form for which it is possible to compute a value for Y given values of X={X1,X2, … Xn}. It could be an explicit analytic expression or an implicit analytic expression, or could involve complex engineering calculation...
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