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本文首先对强迫再生颤振的机理进行了研究,指出这是一种由强迫激励激起的机床再生颤振失稳模态的共振,提出了强迫再生颤振的判别方法,并用于第二汽车制造厂M_x-4车床振动类型的判别.本文还提出了对稳态颤振下的机床切削系统建立门限自回归模型的原理,揭示了极限环与稳态颤振之间的关系,提出稳态颤振下的机床切削系统是一种轨道稳定的非线性系统,并用于M_x-4车床颤振的研究.
This paper first studies the mechanism of forced regenerative chatter vibration, points out that this is a kind of resonance caused by forced excitation of regenerative chatter instability mode, and puts forward the discriminating method of forced regenerative chatter vibration, which is used in the second automobile The dissertation also puts forward the principle of establishing the threshold autoregressive model for the machine tool cutting system under steady-state flutter, reveals the relationship between the limit cycle and the steady-state flutter, and proposes the steady-state The machine-cutting system under flutter is a stable orbital nonlinear system and is used to study the flutter of M_x-4 lathes.