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Compliant universal joint with preformed flexible segments
Raşit Karakuş,Çağıl Merve Tanık 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.11
This paper introduces an original, fully compliant universal joint design. Many mechanisms with different dimensions are investigated. The proposed design is a single-piece compliant mechanism. The number of flexible segments is a design parameter determined as a function of transferred torque. The mechanism can be produced by additive manufacturing from polylactic acid and polypropylene. It is possible to produce the proposed design as a single piece of polypropylene by additive manufacturing and injection molding methods; thus, it has the advantage of ease in manufacturing. The proposed design's bending and torque transmission capacities are determined by applying analytical and numerical methods. Furthermore, a prototype was manufactured, and experiments were conducted. It is verified that the results of the experiments are consistent with theoretical approaches. The proposed fully compliant universal joint design has a great potential in the industry.