采用滑动模态控制器的实时子结构试验等效力控制方法  

Equivalent force control method with sliding mode controller for real-time substructure test

作　　者：周惠蒙[1] 吴斌[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《振动与冲击》2012年第7期27-33,共7页Journal of Vibration and Shock

基　　金：国家自然科学基金(51110106;90715036;50938001);地震行业科研专项经费(20084190731)

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。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. ~Fhesimulation 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.

关 键 词：等效力控制方法 滑动模态控制 实时子结构试验 非线性 

分 类 号：TU317[建筑科学—结构工程]