车削加工过程的变结构控制

Variable Structure Control for the Tutrning Process

对车削加工过程的自适应控制进行了研究，建立了车削加工非线性时变过程的滑动模型，提出了相应的变结构控制策略，给出了车削约束力自适应控制的仿真结果，与积分控制策略相比，当车削深度变化时，变结构控制策略有较好的鲁棒性。

The adaptive control for the turning process is studied.Amodelfor an adaptive controlsystem with the constraint of turning force is developed.The sliding mode equation for thenonlinear time-varying turning process is derived.The switching vector of the equation isfound according to the Lyapunov stability principle and the corresponding variable structurecontrol strategy is designed.Simulation of the adaptive control system with the constraint ofturning force based respectively on the integral control strategy and the variable structurecontrol strategy show that the robustness of the latter system is the better one.