首页|Tripod mechanisms with novel spatial Cartesian flexible hinges
Tripod mechanisms with novel spatial Cartesian flexible hinges
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NSTL
Elsevier
The paper studies the tripod mechanisms that comprise novel spatial Cartesian flexible hinges and can be used in three-dimensional sensing/actuation applications. These hinges are formed of serially-connected straight- and circular-axis elastic segments that are located in planes parallel to the planes of a Cartesian reference frame. Two spatial flexible hinge designs are proposed and their compliance matrices are derived based on closed-form compliances of the basic segments. The hinge compliance matrices are utilized to formulate the stiffness matrix of tripod mechanisms that are parallel combinations of three identical hinges and a rigid link. The hinge analytical compliance model is confirmed through finite element code simulation while the tripod analytical stiffness is verified by both finite element analysis and experimental testing of fabricated specimens. Comprehensive simulation is subsequently performed to study the influence of the geometric parameter values on the hinge and tripod analytical compliance/stiffness.
NSTL
Elsevier
