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Large deflections of folded cantilever: Experiments and elastica analysis
International Journal of Non-Linear Mechanics ( IF 3.2 ) Pub Date : 2020-11-19 , DOI: 10.1016/j.ijnonlinmec.2020.103641
L.N. Virgin , R.H. Plaut

Folded cantilevers have been utilized in MEMS devices, particularly for suspension. The structures consist of a horizontal beam segment fixed at its left end, a short downward connector (joint) at the right end, and a lower horizontal segment under the upper one. Here, the left end of the lower segment is free and a downward concentrated load is applied there. Experiments are conducted on five folded cantilevers with different lengths of the lower segment. An elastica analysis is performed, allowing for large deflections and rotations. The self-weight of the segments is included in the analysis. The effects of the end load and the relative lengths of the segments are investigated. The experimental results compare well to those from the theory.



中文翻译:

折叠悬臂的大挠度:实验和弹性分析

折叠悬臂已经被用于MEMS器件中,特别是用于悬挂。结构由固定在其左端的水平梁段,位于右端的短的向下连接器(接头)和位于上部的下方水平段组成。在此,下部段的左端是自由的,并且向下施加集中载荷。实验在五个折叠的悬臂上进行,下悬臂的长度各不相同。进行弹性分析,允许较大的偏转和旋转。细分的自加权包括在分析中。研究了端部载荷和段的相对长度的影响。实验结果与理论结果相吻合。

更新日期:2020-11-25
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