A kinematic modeling based on compliance of the flexible elements and finite element analysis based model have been extracted. In this work, a novel compliant stage having 3-PRR kinematic structure and actuated by piezoelectric actuators is introduced. It is believed that the CTWJ has a great potential for the development of compliant mechanisms in terms of large range of motions in mutliple axes.Ĭompliant mechanisms have great advantages to be used as micropositioning stages for high-precision applications but they are very sensitive to manufacturing tolerances and assembling errors. Finally, an example of vibration isolator is modeled by using the CTWJ as planar spring. The results revealed that the CTWJ has a range of motion and strain energy larger than those of traditional compliant joints. The behavior of the CTWJ is subsequently compared with the conventional compliant joints to realize the efficient performance of the CTWJ. The range of motion, the strain, the buckling behavior, and the first natural frequency of CTWJ are investigated via finite element analysis and experiments. First, design of experiment methodology is used for the sensitive analysis of the width and the thickness to the strain of joint. In addition, the thin-walled structure is then filled by polydimethylsiloxane material to reinforce the stiffness of the CTWJ. With a thin-walled structure, the CTWJ allows a considerably large range of motion in the x-and-y axes. The CTWJ design is based on the nonlinear geometry of the zygoptera animal.
This paper introduces a Compliant thin-walled joint (CTWJ) that expands the group of existing compliant joints.
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