Hybrid control combined the passive control , active control and semi - active control is more effective and more reliable for improving safety of building under the earthquakes . in this paper , a detailed theoretical analysis and numerical simulation were carried out for a new kind of structural vibration control system base - isolation & active variable stiffness / damping ( bi & avsd ) 其中的混合控制选用被动控制、主动控制或半主动控制中的两种(或两种以上)控制技术相结合，吸收各种控制技术的优点，避免其缺点或存在的问题，使结构达到减震效果好，安全可靠，造价经济，现实可行等多重效果。
To analyze the seismic behavior of the lattice type src members , look for a section patterns which is not only safety but also economic , in this paper , a experiment of seismic behavior about nine truss type src columns and three rc columns which strength , steel requirements and axial load are different , the deformation capacity and failure patterns are observed , and the hysteretic cycle are obtained . according to the experiment results , it is different between the failure patterns of src members and rc members 为了分析空腹式钢骨混凝土的抗震性能，寻找一种即安全又经济的src截面形式，本文对9根不同强度、不同配钢率、不同轴力的src试件和3根普通rc试件做了抗震性能试验，在保持轴力不变的情况下，采用荷载? ?变形混合控制方法施加往复的水平荷载，观察其变形性能与破坏状况，测得各试件的滞回曲线。
The analytic expression of the nonlinear control law of control variable for the upfc is obtained by using the approach of designing the nonlinear optimal controller based on the differential geometry theory . as a result , the control strategy for upfc including linear and nonlinear laws is obtained in order to adapt the nonlinear character of power system 考虑到电力系统的非线性特性，运用基于微分几何理论的反馈线性化方法，得到了upfc控制变量的非线性最优控制律的解析表达式，从而提出upfc的线性与非线性最优混合控制策略。
Secondly , the mixed h2 / h control is formulated as a game problem of incomplete information , a suboptimal 2x2 non - zero game model is constructed , where two channels are chose as players and h2 and h control are pure strategies , and an algorithm for mixed h2 / h control , which is based on the nash ' s bargaining theory , is derived to achieve the nash equilibrium point . finally , handling stability , ride comfort and steering handiness are related with vehicle suspension system and electrical power steering 其次，基于对策论把h _ 2 h _混合控制问题抽象为两个对局者信息不完全情况下的非零和博弈模型，在以次优范数值构造的2x2非零和博弈模型中把两类通道作为参加博弈的两方，以h _ 2和h _控制方案作为两种纯策略，基于纳什谈判解原理设计出求解h _ 2 h _混合控制问题纳什均衡点的算法。
5 . standard h2 / h and robust h2 / h mixed control problems are systematically analyzed by the method of linear matrix inequation . design method of the optimum guaranteed performance control rule as well as the one which satisfies the given disturbance attenuation degree and performance constraints are discussed 6 运用线性矩阵不等式方法，系统分析了标准h _ 2 h _混合控制问题及鲁棒h _ 2 h _混合控制问题，探讨了满足给定的扰动衰减度和性能约束的保性能控制律及最优保性能控制律的设计方法。
Design method of the electromechanical actuator controller based on the robust mixed h2 / h * control theory is studied , taking advantage of the priority of the linear matrix inequation in solving the problems of the multiobject control , the robust mixed h2 / h * control problem of the electromechanical actuator under the condition of parameter perturbation and external disturbance can be transformed to the solving of the linear matrix inequation 研究了基于鲁棒h _ 2 h _混合控制理论的电动舵机的控制器设计方法，利用线性矩阵不等式在多目标综合控制问题求解方面的优势，将存在参数摄动及外部扰动时的电动舵机的鲁棒h _ 2 h _混合控制问题转化为线性矩阵不等式问西北工业大学博士学位论文题并进行求解。
A new kind of robust h control tactic based on ip controller for dynamical and rapid high - precision - feed in a single axis is proposed in this paper , and the problem of h2 / h is also introduced , in which a constraint condition on y is deduced . the background of the paper is " theory of dynamic precision synchronization traverse and research of realization methods for linear servo dual position loops system ( no . 50075057 ) " , which is supported by national natural science foundation of china 本文以国家自然科学基金资助项目《直线伺服双位置环动态精密同步进给理论和实现方法研究( n _ o . 50075057 ) 》为背景，基于h _控制理论，提出了直线伺服单位置环的高精度快进给的鲁棒h _控制方案，并进一步研究了h2 h混合控制问题，给出了一个约束的条件。
Several semi - active control algorithms used in the semi - active suspension system with mr dampers are proposed and developed including the " on - off " voltage controller , the continuously linear variable voltage controller , the modulated continuously linear variable voltage controller based on " sky - hook " damping concept and the hybrid controller based on the combination of " sky - hook " damping concept and " ground - hook " damping concept and the fuzzy logic controllers using measurements of the relative displacement between the sprung and unsprung mass or the absolute acceleration of the sprung mass as the input variables of fuzzy logic controllers . the simulation models were prepared in matlab ? simulink ? fuzzy toolbox programs . the experiment setup of the semi - active suspension system with mr dampers in the lab has been designed and developed 根据磁流变阻尼器特性和对悬架系统动力学特性的规律性研究，为磁流变阻尼器设计了基于“天棚”阻尼控制概念的“ on - off ” 、线性连续和修正的线性连续控制策略，基于“地棚”阻尼控制概念的磁流变阻尼线性连续控制策略， “天棚”阻尼和“地棚”阻尼控制概念线性组合起来的磁流变阻尼混合控制策略，根据模糊控制原理设计了以簧载质量和非簧载质量间相对位移或簧载质量加速度分别作为输入变量的模糊逻辑控制器用于磁流变阻尼半主动悬架的智能控制。
The innovative ideas in this paper are that robust h control theory based on conventional ip controller is applied to the high - precision feed of a single axis , and the controlled plant is composed of ip velocity loop and two - order model of linear motor . a constraint condition on y in the problem of h2 / h is deduced from the frequency criterion of riccati equation , which makes the repeated computation on r simple . considering the two - loops control problem , the h state feedback controller based on ip controller as the inner controller is applied to satisfy the velocity performance of the system , and a pi controller , the external controller , is used to satisfy the position performance 本文的创新之处在于将传统的ip速度控制器和直线电动机的二阶模型作为一个广义的被控对象，利用鲁棒h _控制理论设计了一个h _状态反馈控制器，以此解决高精度进给的控制问题，并在此基础上研究了h _ 2 h _混合控制问题，结合h _代数riccati方程正定镇定解存在的频率判据，推出了一个控制器存在的约束条件，使以往须反复试探的，有了更进一步的约束范围，简化了计算。
Aimed at higher efficiency , stable and reliable operation and convenient supervisory , the project adopted a plc - ipc combined hybrid control system with the merits of flexible configuration , accurate measurement , coordinated control , reliable performance and convenient maintenance , achieving a higher automation level of material proportioning 为了提高生产效率，保持稳定可靠运行，提供便利的监控手段，在改造工程中采用了plc和ipc相结合的混合控制系统方案，具有配置灵活、计量准确、控制协调、性能可靠和维修方便等优势，使高炉槽下配料达到较高的自动化水平。
