On the analysis and design of a fully compliant large stroke slider-crank (rocker) mechanism

Tanık, Çağıl Merve; Tanık, Engin; Yazıcıoğlu, Yiğit; Parlaktaş, Volkan

In the literature, authors have made contributions in the area of partially compliant slider-crank (rocker) mechanisms possessing rigid joints that may cause backlash inherently. On contrary, fully compliant mechanisms offer no backlash which is a valuable property for the cases where high precision is required. In this paper, we proposed a fully compliant slider-crank mechanism that performs large stroke. Kinematic performance of the mechanism is investigated analytically. Dimensions of the mechanism are optimized to obtain maximum translational output, while keeping deflections of flexible hinges equal to each other and as small as possible. A design table displaying stroke, axis drift of the output segment, and critical stresses of compliant segments are presented. As an example, a compliant mechanism is designed by using rigid body replacement technique. Then, via nonlinear finite element analysis technique, analytical results are verified. Finally, a prototype is built to compare output stroke and axis drift with analytical approaches. The results of experiments verified that the theoretical approaches are consistent.



Tanık, Çağıl Merve / Tanık, Engin / Yazıcıoğlu, Yiğit / et al: On the analysis and design of a fully compliant large stroke slider-crank (rocker) mechanism. 2020. Copernicus Publications.


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