【作者】 雷泽涛；

【导师】 于建华；

【作者基本信息】 四川大学 ， 结构工程， 2006， 硕士

【摘要】 被动控制系统和主动控制系统都有各自不可克服的缺点，而采用混合控制系统则可充分利用二者的优点，克服二者的缺点，从而拓宽控制系统的应用范围。结构动力优化设计是当前工程结构设计研究领域中的前沿性课题。大量研究事实表明，欲改善结构和机械系统的动态特性，达到控制振动之目的或者确保它们在动力环境下能够安全可靠的工作，最为行之有效的办法就是进行结构的动力优化设计。 基于上述思想，本文研究了主动控制-基底隔震混合控制系统，即在隔震层连接主动控制器，通过主动控制器施加控制力来控制橡胶隔震器水平变形的混合控制系统；改进瞬时最优控制算法，使之其能对被动控制系统和主动控制系统同时进行最优控制，达到最佳的控制效果；建立了基于改进后瞬时最优控制算法的主动控制-基底隔震结构地震反应状态方程，推导出了主被动控制力的表达式。同时为达到更好的控制效果，对主动控制-基底隔震混合控制系统与结构主体进行一体化动力优化设计，从能量的角度出发建立目标函数。最后进行了算例分析，结果表明：对比传统设计方法，本文建议的改进后的瞬时最优控制算法有着更好的控制效果；同时整个系统经一体化动力优化设计后抗震性能有显著的提高。更多还原

【Abstract】 Passive control system and active control system have some difficulties respectively which can’t be overcome by now, but hybrid control system can make use of their advantages and overcome their disadvantages, and then extends the applied range of control system. Structural dynamic optimum design is an advanced subject in the field of engineering structure design at present. Plenty of research facts have proved that, for improving the dynamic characteristics of the structure or mechamsm system to achieve the aim of vibration-control or guarantee them to work safely and reliably in the dynamic environment, one of the best effective method is structural dynamic optimum design.According to this idea, the hybrid control system of active control combined with base-isolation, which is consisted of base-isolation and active controller, controlling the level distortion of rubber-bearing isolation through active controller, is researched in this thesis. In order to attain optimal control of both active control system and passive control system simultaneously and thereby achieve the best result, the instantaneous optimal control method is researched and improved. Basing on the improved instantaneous optimal control method, the status equation of the hybrid control system in earthquake is established, and the expressions of both active and passive control force are deduced. To get better control result, the integrative dynamical optimization design for both the hybrid control system and the superstructure is adopted and the objective function is found due to the energy更多还原