【摘要】 等效力控制方法用反馈控制代替数学迭代过程求解实时子结构试验隐式逐步积分方法的非线性方程。对于非线性结构实时子结构试验的等效力控制方法,采用滑动模态控制器代替PD和PI控制器。滑动模态控制是一种非线性控制器,适合线性和非线性系统的控制。线性弹簧试件的实时子结构试验模拟和试验验证了这种控制方法的可行性。防屈曲支撑试件试验模拟和试验的结果表明,非线性系统的等效力控制方法试验,滑动模态控制有较好的控制效果。更多还原

【Abstract】 With equivalent force control method,a feedback control was used to replace mathematical iteration to solve a nonlinear equation of a real-time substructure test using implicit integration method.For nonlinear structural real-time substructure test,a sliding mode controller was used to replace PD and PI controllers of the equivalent force control method.The sliding mode controller was a nonlinear controller suitable for controlling linear and nonlinear structures.Thesimulation and real-time substructure test results of a linear spring specimen proved the feasibility of this control method.And the simulation and experimental results of a buckling-restrained brace(BRB) specimen demonstrated that the sliding mode control has good control effect for equivalent force control test of nonlinear systems.更多还原