认知不确定性移动质量-梁耦合系统的鲁棒自适应控制研究

The dynamic response and control of moving mass-beam coupling system is one of the key problems in the engineering fields including heavy-bridge crane system, vehicle-bridge coupling system. There are various uncertainty factors (such as structure, measurement, assembly, modeling, etc.) in the actual engineering system. Clarifying their effects on the state trajectory of the mobile quality-beam coupling system is of great scientific significance and application value to realize its stable control and safe operation. The epistemic uncertainty is described using evidence theory. The uncertainty level will be confirmed by Copula function and regularization method. The adaptive fuzzy sliding mode control system is guaranteed using Lyapunov function. The effect of buffet is reduced through fuzzy system. The discrepancies of the beam deflection subjected to adaptive fuzzy sliding mode control and uncontrolled situation can be obtained through constructing the experimental setup. Then, the effects of moving mass-beam coupling systems can be analyzed using combining with theoretical approach. The influence law of the adaptive fuzzy sliding mode control of moving mass-beam coupling systems can be obtained through this project. The robustness of moving mass-beam coupling systems subjected to the adaptive fuzzy sliding mode control can be verified by combining the experimental setup and the theoretical approach. Subsequently, the influence mechanism of the adaptive fuzzy sliding mode control of moving mass-beam coupling systems can be revealed through this research. The theories and experiments can bring scientific significance and engineering applied importance to structural reliability, normal operation and maintenance costs.

移动质量-梁耦合系统的动态响应及控制问题作为重物-桥吊系统、车-桥耦合系统等工程领域的核心问题之一，实际的工程系统中不可避免的存在不确定性因素(诸如结构、测量、装配、建模等)，澄清各类不确定性因素对移动质量-梁耦合系统状态轨迹的影响，对实现系统的稳定控制和安全运行具有重要的科学意义和应用价值。本项目采用理论和实验相互结合的方法对移动质量-梁耦合系统的鲁棒自适应控制进行研究，工作有：采用Copula函数与正则化方法，提高证据理论对复杂不确定因素的建模能力；认知不确定框架下对滑动面进行Lyapunov渐进稳定性分析，结合模糊控制技术实现系统抖振的有效控制；搭建移动质量-梁耦合系统的振动及控制平台，验证项目提出的自适应模糊滑模控制方法的实际应用能力。本项目的研究工作成果可有效提升移动质量-梁耦合系统的可靠性和鲁棒性控制，为保障和实现相关工程结构的运营安全提高重要的理论参考。

移动质量-梁耦合系统的动态响应及控制问题作为重物-桥吊系统、车-桥耦合系统等工程领域的核心问题之一，实际的工程系统中不可避免的存在不确定性因素(诸如结构、测量、装配、建模等)，澄清各类不确定性因素对移动质量-梁耦合系统状态轨迹的影响，对实现系统的稳定控制和安全运行具有重要的科学意义和应用价值。本项目采用理论和实验相互结合的方法对移动质量-梁耦合系统的鲁棒自适应控制进行研究，工作有：采用Copula函数与正则化方法，提高证据理论对复杂不确定因素的建模能力；认知不确定框架下对滑动面进行Lyapunov渐进稳定性分析，结合模糊控制技术实现系统抖振的有效控制；搭建移动质量-梁耦合系统的振动及控制平台，验证项目提出的自适应模糊滑模控制方法的实际应用能力。本项目的研究工作成果可有效提升移动质量-梁耦合系统的可靠性和鲁棒性控制，为保障和实现相关工程结构的运营安全提高重要的理论参考。