Conceptual design of compliant translational joints for high-precision applications |
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Authors: | Guangbo HAO Haiyang LI Xiuyun HE Xianwen KONG |
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Affiliation: | 1. School of Engineering-Electrical and Electronic Engineering, University College Cork, Cork, Ireland2. School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, UK |
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Abstract: | Compliant translational joints (CTJs) have been extensively used in precision engineering and microelectromechanical systems (MEMS). There is an increasing need for designing higher-performance CTJs. This paper deals with the conceptual design of CTJs via three approaches: parallelogram based method, straight-line motion mechanism based method and combination based method. Typical emerging CTJ designs are reviewed by explaining their design principles and qualitatively analyzing their characteristics. New CTJs are proposed using three approaches, including an asymmetric double parallelogram mechanism with slaving mechanism, several compact and symmetric double parallelogram mechanisms with slaving mechanisms and a general CTJ using the center drift compensation and a CTJ using Roberts linkage and several combination designs. This paper provides an overview of the current advances/progresses of CTJ designs and lays the foundation for further optimization, quantitative analysis and characteristic comparisons. |
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Keywords: | compliant mechanisms translational joints conceptual design parallelogram straight-line motion combination method |
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