More specifically the tolerance redesign method

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Unformatted text preview: ctor and some corresponding [FE] vector; ( u , v , w,α , β , δ ) and ( u , v , w,α , β , δ ) : Lower and Upper limits of u, v, w,α , β , δ . J 1 J 2 J 3 J 4 J 5 J 6 FE i As can be seen, dispersions around a functional condition are represented by the column matrix [FR] in which the six small displacements are bounded by interval values. Similarly, the various functional elements encountered in the tolerancing chain are represented by corresponding column matrix [FEs] where intervals are again used to represent variations on each element. Naturally, the terms in this expression remain the same as those with “conventional” Jacobian modeling [Ghie 2004]. 98 W. Ghie, L. Laperrière and A. Desrochers 3.2 Percent Contribution Charts Equation (2) gives the accumulation of the tolerance contributions from each CFEi to the total FR. Then, for a better understanding, we rewrite the mathematical formulation which was introduced in equation (3) : [u , u ] [v ,v ] [w, w ] [α , α ] β , β δ , δ =C F E1 + LL + C FEN (3a) FR Using the law from equation (...
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This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

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