Abstract
This study presents the design, analysis and modeling of a large deflecting compliant swashplate mechanism that is actuated by rigid pitch links. Pitch links are actuated by high torque servo motors. Kinematic analysis of the entire mechanism is obtained by integrating vector closure loop equations. Modeling of small length flexural pivots is achieved by fitting a high order polynomial to the load deflection curve obtained from both pseudo rigid body modeling (PRBM) and MSc Adams analysis. Effects of the thickness and length of the rigid and flexures on deflection of flexible segments are analyzed experimentally. Experimental setup is built by 3D printing mechanism parts using polylactic acid (PLA) and assembling together with ball bearings and pin joints. Tip position of the mechanism is recorded by laser displacement sensor, Arduino and Matlab. It is observed that higher amplitude, quicker response time and precise motion can be achieved by the proposed compliant mechanism.
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