کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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565702 | 875806 | 2009 | 22 صفحه PDF | دانلود رایگان |

This paper presents the design methodology and dynamic modelling of a piezo-driven flexure-based Scott–Russell mechanism for nano-manipulations. Based on finite element analysis, the Scott–Russell mechanism is monolithically constructed to provide high positioning accuracy and long-term repeatability. With consideration for the effect of the driving circuit, the dynamic model of the flexure-based Scott–Russell mechanism is established. The influence of the time constant RC on the dynamic response is investigated. The transient responses of the flexure-based Scott–Russell mechanism to three typical signals are derived based on the Laplace transform method. It is noted that the cycloidal command signal can generate vibration-free motion, and thus improve the dynamic performance of the flexure-based mechanism. Experimental tests have been carried out to verify the developed Scott–Russell mechanism and the established models.
Journal: Mechanical Systems and Signal Processing - Volume 23, Issue 3, April 2009, Pages 957–978