Portal de Periódicos da CAPES

Study on Non-contact Chuck Using Ultrasonic Vibration (On Primary Cause of Holding Force Acting to a Floating Object)

2007; Japan Society Mechanical Engineers; Volume: 73; Issue: 728 Linguagem: Inglês

10.1299/kikaic.73.1208

0387-5024

Shigeka YOSHIMOTO, Tomomi YAMAZAKI, Kazuyuki TODA, Masaaki Miyatake,

Modular Robots and Swarm Intelligence

It is experimentally known that a flat surface vibrating at ultrasonic frequencies generates forces in both vertical and parallel directions to a vibrating surface, and these forces can support a floating object without any contact. However, the cause of the force parallel to the vibrating surface (called a holding force in this paper) has not been clarified yet. Therefore, this paper investigates the cause of the parallel force generated by a vibrating surface, experimentally and numerically. In numerical calculations, computational fluid dynamics (CFD) was used in order to obtain the pressure distribution of air surrounding a floating object and a vibrating plate. It was consequently found that the holding force acting to a floating object is due to an average minus pressure generated at the edge of a floating object on the vibrating flat surface.