Sound Generation under Rotary-Screw Propulsion Unit Base Cylinder Bending

Bending rules for animal propulsion.

Animal propulsors such as wings and fins bend during motion and these bending patterns are believed to contribute to the high efficiency of animal movements compared with those of man-made designs. However, efforts to implement flexible designs have been met with contradictory performance results. Consequently, there is no clear understanding of the role played by propulsor flexibility or, more...

Epiphysiodesis Screw Bending.

Percutaneous epiphysiodesis using transphyseal screws is a common method for treatment of limb length discrepancy and angular deformity. The authors report 3 cases of a previously unreported complication following treatment with percutaneous epiphysiodesis using transphyseal screws: bending of the transphyseal screw. In each case, this rare complication was associated with difficult removal of ...

Applied on the Rotary Draw Bending Process

Bluff-body propulsion produced by combined rotary and translational oscillation

Flows produced by combined oscillatory translation and rotation of a circular cylinder in quiescent fluid have been studied using a two-dimensional direct numerical simulation technique. Results are presented for one set of the five dimensionless groups which characterize these flows, for which it is found that a streaming flow normal to the axis of translation is generated. The consequent reac...

Noise Reduction Analysis on Inverter Driven Two-Cylinder Rotary Compressor

Sanyo has originally introduced 6HP two-cylinder rotary compressors for packaged airconditioners in I 985. The concept of two-cylinder rotary compressor has been recently applied to room airconditioners(RACs) for the purpose of reducing vibration and noise of the unit. However. RACs are demanded to decrease the noise by lowering levels of the compressor noise. SanYo has newly developed the quie...