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由于挠性转子的动挠度及其轴承的动反力是随着转子转速的变化而改变,所以,挠性转子必须在其工作转速下作整个转速范围内转子的平衡。而挠性转子在接近或超过其第一、二阶临界转速时,转子处于共振状态,这时动挠度达到很大的数值。因此,用一般的影响系数法求影响系数值是不可取的。本文从挠性转子平衡理论出发,通过“振型法”与“影响系数法”的基本理论,找出它们间相互关系,从而找得安全通过共振转速的平衡方法,使影响系数法平衡挠性转子更为完善,在此称为“组合平衡法”。
Due to the dynamic deflection of a flexible rotor and its bearing dynamic and reaction force change with the rotor speed changes, so the flexible rotor must be in its working speed for the whole speed range rotor balance. When the flexible rotor approaches or exceeds its first and second critical speeds, the rotor is in a resonance state, and the dynamic deflection reaches a great value. Therefore, it is not advisable to find the value of influence coefficient by the common influence coefficient method. Based on the theory of balance of flexible rotor, this paper finds out the relationship between them by the basic theory of “modal shape method” and “influence coefficient method”, so as to find a safe way to balance the rotational speed through the resonance method, The rotor is more complete, here called “combinatorial balance”.