異種金属を組合せた平滑丸棒ホーンの振幅拡大効果

概要

論文の詳細を見る
Solid horns for "power ultrasonics" usually magnify the vibration amplitude by a decrease in sectional area along their axis. However these horns are usually too heavy to handle easily and their fatigue strength is reduced by the stress concentration induced by their profile. Thus we have attempted to develop a new type of horn based on a different magnification principle by connecting simple round bars of different specific acoustic impedances. Vibration of the round bar horn is analyzed using the longitudinal wave theory and FEM to achieve a practical design. We have fabricated the new type of horns and performed experiments to confirm their magnification capabilities. Analytical and experimental results show that the simple round bar horn is satisfactory for practical use.
社団法人日本機械学会の論文
1996-01-25