这篇论文由使用可得到的加速大小在模型参数与不确定性为结构的系统论述一条柔韧的 H_ ∞输出反馈控制途径并且为如此的一个柔韧的输出反馈控制器的存在建议条件。结构的僵硬的不确定性,抑制并且集体参数被假定围住标准。建议控制途径在线性矩阵不平等,存在凸的优化技术例如在 MATLAB 的 LMI 工具箱,能有效地并且方便地为被使用的框架以内被提出。说明建议的柔韧的 H_ ∞策略的有效性,一座六故事的大楼两个都受到 1940 El Centro 地震记录并且到突然应用的 Kanai-Tajimi 过滤白噪音随机刺激。结果证明建议的柔韧的 H_ ∞控制器向令人满意的结果提供或没有结构的僵硬的变化,抑制并且集体参数。
This paper presents a robust H∞ output feedback control approach for structural systems with uncertainties in model parameters by using available acceleration measurements and proposes conditions for the existence of such a robust output feedback controller. The uncertainties of structural stiffness, damping and mass parameters are assumed to be norm-bounded. The proposed control approach is formulated within the framework of linear matrix inequalities, for which existing convex optimization techniques, such as the LM1 toolbox in MATLAB, can be used effectively and conveniently. To illustrate the effectiveness of the proposed robust H∞ strategy, a six-story building was subjected both to the 1940 E1 Centro earthquake record and to a suddenly applied Kanai-Tajimi filtered white noise random excitation. The results show that the proposed robust H∞ controller provides satisfactory results with or without variation of the structural stiffness, damping and mass parameters.