モータ加速時振れ止めに接触する鉛直回転軸のふれまわり : 第2報, ふれまわりパターンと力の釣合い

概要

論文の詳細を見る
Non stationary responses of a vertical Jeffcott rotor contacting with an annular guard during passage through a critical speed accelerated by a power limited motor are calculated and their characteristics are investigated. The results show that (1) three typical rotor whirl patterns are observed, that is, contacting forward whirl, backward whirl of contact/collision type, (2) the backward whirl of contact type shows large displacement and large contact force, (3) the increase in coefficient of friction and mass and stiffness of annular guard system accelerates development of the backward whirl, while the increase in eccentricity and contact stiffness has an opposite effect, and (4) the balance of forces in each rotor whirl pattern is clarified.
一般社団法人日本機械学会の論文
1999-06-25