Gearing is one of the most effective methods for transmitting power and rotary motion from the source to its application with or without change of speed or direction. The bending and surface strength of the gear tooth are considered to be one of the main contributors for the failure of the gear in a gear set. Thus, determination of stresses has become popular as an area of research on gears to ...

In this paper, a bio-inspired bending actuator was designed and fabricated using piezoelectric patches and cantilever-shaped beam for controlling nose shape. The aim of this study is to investigate the use of the bending actuator. PZT and single crystal PMN-PT actuators were used to generate translational strain and shear stress. The piezoelectric patches were attached on the clamped cantilever...

The objective of this study was to investigate the relationship between the preoperative intervertebral interspace angle and postoperative trunk shift (TS) in patients who have received scoliosis correction. Anteroposterior (AP) whole spine standing radiographs and right and left lateral bending radiographs were taken preoperatively, and AP whole spine standing radiographs were obtained postope...

Sheet metal is one of the most important semi-finished products used in automobiles, domestic appliances, aircraft and other familiar products. Therefore sheet metal forming technology is an important engineering discipline in the area of mechanical engineering. In sheet metal forming, wipe bending process plays a major role in which the sheet metal tries to return to its original shape after r...

ee front matter & 2005 bmt.2005.06.001 ing author. Tel./fax: +4 ess: info@norrisassociat Summary The purpose of this study was to determine if an association exists between hamstring muscle length and the angle of pelvic tilt during forward bending in a student sporting population. A bubble goniometer was used to determine angle of pelvic tilt, and the active knee extension (AKE) test used to a...

Laser forming has not been widely used due to limited understanding of its mechanism and immaturity of processing technology. In the study of single axis laser bending of plates, edge effects affect accuracy of the bending. Experimental and numerical studies are carried out to study the mechanism of the edge effects. Temperature dependency of material properties and strain-rate dependency of yi...

INTRODUCTION: We have attempted to noninvasively assess the bone deformation angle of a fracture healing site under a load using Echo tracking (ET). The ET method can be used to evaluate the bending stiffness, but previous studies [1] have not validated the accuracy of bending stiffness as measured by ET because this was in vivo study. In order to evaluate the accuracy of bending stiffness as d...

The lower limbs of motion body contain rich identification of individuals in the process of walking. A gait recognition method based on ankle joint motion trajectory and bending angle is proposed. First it obtains lower limb joint points according to each part of the body and height proportion. It obtains the position coordinates of the toe by using skeleton algorithm. According to the position...

This article reports on the first successful combination of micro Laue (µLaue) diffraction with an atomic force microscope for in situ nanomechanical tests of individual nanostructures. In situ three-point bending on self-suspended gold nanowires was performed on the BM32 beamline at the ESRF using a specially designed atomic force microscope. During the bending process of the self-suspended wi...