Electrochemical Coupled Analysis of a Micro Piezo-Driven Focusing Mechanism

A piezo‐driven flapping wing mechanism for micro air vehicles

2006). Flapping wing MAVs (FWMAVs) are a class of new conceptual MAVs that take design cues from flying insects in order to achieve a small size (<3–5 cm), high maneuverability and super remote ability (Yan et al. 2015). A FWMAV is expected to work in a variety of confined spaces such as urban canyons, caves, indoors, and jungles that large flying robots can’t be serviceable. To achieve such ta...

Dynamic modeling of 3-DOF pyramidal-shaped piezo-driven mechanism

Piezo-driven metrological multiaxis nanopositioner

We report on the development of a metrological multiaxis nanopositioning device, which is operated by the piezo-based inertial method, as a sample stage for scanning probe microscopy. It has long moving range, unlimited in principle, and nanometer ~microradian! resolution. Two operation methods, inertial sliding and inertial walking, can be applied to the stage and the inertial operating method...

Analysis of Hydrodynamic Mechanism on Particles Focusing in Micro-Channel Flows

In this paper, the hydrodynamic mechanism of moving particles in laminar micro-channel flows was numerically investigated. A hydrodynamic criterion was proposed to determine whether particles in channel flows can form a focusing pattern or not. A simple formula was derived to demonstrate how the focusing position varies with Reynolds number and particle size. Based on this proposed criterion, a...

A boundary element analysis of crack-propagation mechanism of micro-cracks in rock-like specimens under a uniform normal tension

In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions of the pre-existing micro-cracks, which can grow and propagate within a rock-like specimen. The ...