To better help the mechanical design and structural optimization of bridge-type nano-positioners, an improved model was developed to describe the displacement amplification of the bridge-type mechanism in this paper. Comparative studies and experiments indicate that the proposed method can better capture the amplification performance for such systems, which can be potentially used in the design and optimization of bridge-type nano-positioners.

Nanoscale components are used extensively in a variety of nanotechnology applications. In particular, carbon nanotubes (CNTs) are used in diverse fields due their superior properties. For specific applications, their mechanical behaviour under loading needs to be investigated. Buckling of CNTs is a critical failure mode and in the present study, nonlocal continuum mechanics is employed to investigate their buckling behaviour subject to elastically restrained boundary conditions.

This paper is done based on the research result for my research program. Testing results indicate that the maximal cross coupling of the 2-DOF micro-positioning stage is less than 0.1% under the full workspace with the natural frequency of 348.31Hz. The purpose of all work is to design a compliant mechanism for applying the micro-nano-positioning system. And that this work also extends my research interest in my PhD period.

This paper presents the output decoupling property of flexure-based mechanisms. The model shows that mechanisms are output decoupled when they are symmetry about two perpendicular axes or when they are composed of either three or an even number of identical limbs distributed evenly around the center. The results obtained from the proposed model and FEA are almost same, which validates the model. It provides a reference point for further studies on the design and optimization of mechanisms.