【作者】 肖友洪；

【导师】 刘志刚；

【作者基本信息】 哈尔滨工程大学 ， 轮机工程， 2003， 硕士

【摘要】 模糊控制作为一种非线性的智能控制技术，由于其独特的优点，近年来在理论和工业实践中得到了广泛的发展和应用。本文以舰船柴油机双层隔振系统为对象，将模糊控制技术和振动控制技术相结合，给出了模糊控制隔振系统的结构及设计方法，对基于模糊控制的振动主动控制技术进行了理论和试验研究。 针对双层隔振模拟试验台架的振动特点，建立了控制系统数学模型，设计了一种模糊控制器，提出适用于振动主动控制的模糊控制规则，进行了双层隔振模拟实验台架垂直方向的仿真研究。研究结果表明，所采用的模糊逻辑控制方法对于周期和柴油机振动信号均有较好的控制效果。讨论了量化因子的选择对控制效果的影响。 将参数自校正模糊控制方法引入双层隔振系统，通过在线整定量化因子。这种控制方法较之常规的固定量化因子的模糊控制方法，对环境的变化有较强的自适应能力。在双层隔振台架的数学模型上进行自适应模糊控制的仿真研究，仿真结果表明自适应模糊算法对主动隔振系统具有良好的控制效果。 本文还针对柴油机双层隔振模拟试验台架，进行了常规模糊主动控制方法的试验研究。结果表明，该控制方法具有一定的控制效果，证明了此方法的合理、有效性。更多还原

【Abstract】 As a nonlinear intelligent control technique, with its special advantages fuzzy control has got extensive development and application in theory and industrial practices. In this paper, the marine diesel two-stage vibration isolation system is studied as the primary object. The technique of fuzzy control and the active control are combined, and the structure and the design of the vibration isolation system based on fuzzy control are given. The active vibration control technique based on fuzzy control is studied in theory and experiment.According to the characteristics of the two-stage vibration isolation test-bed, the control system model is made, and a fuzzy controller is designed, and the fuzzy control rules for the active control are introduced, and the simulation investigation of the two-stage vibration isolation test-bed in the vertical is effective to periodic and diesel vibration signal. In this paper, the effect between the choice of scaling gains and the control result is discussed.The method of adjusting parameter of fuzzy control automatically is introduced into two-stage vibration isolation, and the scaling gains are revised online. This control stratagem is more adaptive to circumstance than normal fuzzy control which scaling gains are staid. The simulation of adaptive fuzzy control is made on the model two-stage vibration isolation. Results verify that adaptive fuzzy control method is effective to the active vibration isolation system.In this paper, according to diesel two-stage vibration isolation test-bed, the experiment investigation based on normal fuzzy active control is made. Results verify that this control stratagem has some control results and this stratagem is correct and effective.更多还原