Both the drive gear and the load gear rotate about

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Unformatted text preview: ere the collar contacts the blade. From the above calculation we see that the value for t″a already gives substantial control of orientation. If additional orientational control t″f (t″f < t″a) were required, it could be obtained by imposing tighter orientational tolerance t"Pb on the ends of collar. CONCLUSION In this paper we have demonstrated the procedure for tolerance analysis using T-Maps. This example shows how to combine the variations of an axis and a plane that contribute to the desired control of the variations at the target feature. The procedure for obtaining the stack up equation from the accumulation T-Map using the target feature was elucidated. Tolerance allocation was achieved using a simple scheme of equal contribution from the terms of the stack up equation. ACKNOWLEDGEMENT The authors are grateful for funding provided to this project by National Science Foundation Grants #DMI-9821008 and #DMI-0245422. 276 REFERENCES A. D. Jian et al. [ASME Standard, 1994] ASME Y14.5M.; "Dimensioning and Tolerancing"; The American Society of Mechanical Engineers, NY. [Bhide, et al., 2001]...
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