積分型レギュレータによる機械振動の能動的制御 : 特に旋削加工機械系のびびり振動制御について

概要

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Active control effects of self-excited chatter occurring in a turning cutting process have been investigated from the simulation aspect, by applying an integral type regulator design method to an unstable machine structure system based on Merritt's modeling, and the followings have been obtained. Even in the composite system including an identity observer, satisfactory control effects can be obtained in the case where the spectra of the relative pole allocation between the closed system (A^^-+B^^-K^^-) and the observer system (A-LC) are arbitrarily configurated. When the phase factor ν is used as a parameter of the robustness concerning the controlled performance, it is found that in the composite system with the esimator, the robustness can be guaranteed at the range of ν=0.490〜0.503,while in the closed system without the observer, that is expanded over a fairly wide range of ν=0.07〜0.55. The effect of the delay of control start-time T_s on the feedback stabilization is also checked with the result that the effective control of chatter-vibrations is possible within the range of an appropriate T_s.
日本シミュレーション学会の論文
1991-06-15