回転に伴い加圧形態が変化する紙加工ロール系の不安定振動

概要

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A paper converting single-facer occasionally experiences alternate pressing marks at the operating speed of about two times the resonant speed of the roll system. This paper describes the theoretical approach to this phenomenon based on the hypothesis in which the roll vibration system is expressed by Mathieu's equation with variable paper spring constants. Paper spring constants are calculated for each rotational angle to show that the range of its primary component is nearly equal to 60 percent of the average range. Investigation the characteristics of Mathieu's equation and the experimental results, it is demonstrated that the instability is expected to occur above the operating speed due to parametrically excitated vibration. According to the above-mentioned mechanism, some preventative methods for the unstable vibration were shown quantitatively and their practicality was confirmed.
社団法人日本機械学会の論文
1994-09-25