スクィーズフィルムダンパを用いた軸のアンバランス限界についての解析的研究 : 第1報, センタリングばねを有するダンパについて

概要

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Nonlinear unbalance response of a flexible rotor supported at one end by a squeeze film damper with a centering spring is studied for various amounts of unbalance. Oil film boundaries of squeeze film are assumed to be π and 2π. For each condition, there exists a critical unbalance above which the vibration becomes extremely large. The occurrence of the large vibration is explained by the fact that the damping force at a high eccentricity ratio becomes infinitely large and the damper acts as a simple support. In order to attain high reliability of rotor systems, the elimination of large vibration is quite important. In this paper, a design guideline of rotor systems is discussed by comparing the vibration characteristics of the rotor in the case of π and 2π film conditions.
社団法人日本機械学会の論文
1992-08-25