High Precision roation mechanism based on cross-spring pivots mathematical modelling and laser triangulation measurements

摘要

This work addresses the parasitic motion of a rotation mechanism based on flexural pivots aimed at precision engineering applications. From the analytical point of view the problem is reduced to the study of large deflections of an elastic frame and a solution based on the Newton-Raphson method is proposed. An experimental assessment performed by using the interferometric technique of laser triangulation permits the limits of applicability of the proposed method to be established.