Robust model predictive control of continuous uncertain systems*

The authors concern robust model predictive control for linear continuous systems with polytopic uncertainties and input constraints. At each sampling time, a piecewise constant control sequence is obtained by solving a set of linear matrix inequalities. The sufficient conditions on the existence of the model predictive control are given, and the robust stability of the closed-loop systems is guaranteed. A simulation example illustrates the efficiency of the proposed method.     

船舶力控减摇鳍伺服系统研究

针对船舶力控减摇鳍伺服系统,运用H∞控制理论考虑混合灵敏度S／KS问题设计了控制器,由于混合灵敏度S／KS问题模型、权函数的选择、系统奇异性对等实际问题是H∞控制理论应用于实践的关键问题,因此本文结合船舶力控减摇鲁伺服系统着重对这些问题进行了研究,这种思想对于将方法设计的控制器的效果进行了比较,证明了H∞控制应用于系统的优越性。     

时滞区间静态神经网络的全局鲁棒稳定性

应用Lyapunov泛函方法和拓扑度理论研究了时滞区间静态神经网络的全局鲁棒稳定性,给出了一些实用的判据。     

凸多面体不确定随机时滞系统的非脆弱鲁棒镇定

针对具有凸多面体不确定性的随机时滞系统，讨论了非脆弱鲁棒指数镇定问题，其中非脆弱控制器中的不确定性采用的是凸多面体不确定描述。基于Lyapunov直接法，采用了与参数相关的Lyapunov krasovskii泛函，并结合自由权矩阵方法, 使得Lyapunov矩阵与系统矩阵分离，从而获得了系统的完全基于线性矩阵不等式的时滞相关非脆弱鲁棒镇定的充分条件。最后,用例子说明了结果的有效性。     

非线性时滞系统的随机稳定化

本文讨论非线性时滞系统的随机稳定化问题。对于给定的非线性时滞系统，通过引入一个随机噪音项，可得到一个新的非线性随机时滞系统。在给定条件下，对于任意给定初值，可保证该非线性随机时滞系统具有唯一整体解，且该精确解以一般衰减速度几乎处处稳定。     

一般非线性系统的鲁棒适应控制

主要对结构不确定性中含有未知参数和未知非线性函数的非线性系统,在参数上界未知的情况下,对参数进行在线估计,设计出适应控制器.     

Strategic Robust Mixed Model Assembly Line Balancing Based on Scenario Planning

Assembly line balancing involves assigning a series of task elements to uniform sequential stations with certain restrictions. Decision makers often discover that a task assignment which is optimal with respect to a deterministic or stochastic/fuzzy model yields quite poor performance in reality. In real environments, assembly line balancing robustness is a more appropriate decision selection guide. A robust model based on the α worst case scenario is developed to compensate for the drawbacks of traditional robust criteria. A robust genetic algorithm is used to solve the problem. Comprehensive computational experiments to study the effect of the solution procedure show that the model generates more flexible robust solutions. Careful tuning the value of α allows the decision maker to balance robustness and conservativeness of as- sembly line task element assignments.     

一类时滞中立型系统的无记忆反馈H_∞控制

本文采用Lyapunov函数和LMI不等式方法,研究了一类输出方程亦带有不确定性的中立型时滞系统在控制律的作用下鲁棒H∞控制问题.     

An Adaptive Design for Six Sigma（ ADFSS ） ： a Simulated Annealing and Regression Analysis Embedded Approach

Design for six sigma (DFSS) is a powerful approach of designing products,processes,and services with the objective of meeting the needs of customers in a cost-effective manner.DFSS activities are class...     

基于工作过程的《建筑测量》实训教学实践

工作过程教学是职业技术教育中的一种重要的教学方式,有其自身的特点和必要性.该方法在<建筑测量>实训教学中的具体运用具有积极的指导意义.