びびり発生の理論的研究 : 第3報, ランチェスタダンパの防振効果

抄録

Chatter vibrations occurring in machining metals are of two kinds, forced and self-excited. The existence of each chatter is a serious problem, because it is detrimental to the life of tool, on the surface finish and etc. In order to prevent such chatter, some attempt has been made recently to apply a damper to machine tool. In this paper, the effect of Lanchester Damper for the prevention of each chatter was first examined theoretically, and the procedure of designing damper by which each chatter was effectually eliminated was discussed for any vibratory system. Then, the above theory was ascertained experimentally on a boring quill coupling with Lanchester Dampers. Consequently, it was made evident that the damper which was designed in optimum conditions had a conspicuous effect on the prevention of each chatter.