We propose to take the elastic displacements into account in the tolerancing process. In this paper, four models are analysed an order of increasing complexity. First of all, a perfect mechanismwhich allows a static or a kinematik analysis isdescribed. The second model deals with a rigid mechanism with clearances which permits a preliminary tolerancing approach. The third model is a perfect elastic mechanism without clearance. The displacement analysis relative to the loads can bedone. The strain can then be considered in the last model by mixing the second and the third models.
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