Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Damping control method for large-span long-connected continuous bridge
The invention discloses a large-span long-connected continuous bridge damping control method which comprises the following steps: S1, constructing a dynamic finite element analysis model of a large-span long-connected continuous bridge, taking a magneto-rheological damper as a damping control device of the continuous bridge, constructing a controller dynamic model, and jointly taking the magneto-rheological damper and the controller dynamic model as a damping control system; s2, for a damping control system, performing output control on the continuous bridge by adopting a semi-active control scheme considering fault tolerance; and S3, carrying out anti-seismic reliability analysis on the continuous bridge structure under random seismic excitation, and determining an optimal output control scheme to carry out damping control on the continuous bridge. According to the invention, the fault mode of the actuator is analyzed aiming at the situation that the normal output control is influenced by the failure fault possibly occurring in the operation process of the magneto-rheological damper at the control part, and the fault-tolerant control is considered into the semi-active control scheme based on the analysis; the purpose of keeping the expected damping effect of the semi-active control scheme is achieved by conducting pressurization compensation on fault output.
本发明公开了一种大跨长联连续桥梁减震控制方法，包括S1、构建大跨长联连续桥梁的动力有限元分析模型，将磁流变阻尼器作为连续桥梁的减震控制装置并构建控制器动力模型，共同作为减震控制系统；S2、对于减震控制系统，采用考虑容错的半主动控制方案对连续桥梁进行出力控制；S3、对随机地震激励下的连续桥梁结构进行抗震可靠性分析，确定最优出力控制方案对连续桥梁进行减震控制。本发明针对控制部位的磁流变阻尼器在运行过程中可能出现失效故障影响正常出力控制的情况，对作动器的故障模式进行了分析，并基于此将容错控制考虑进半主动控制方案中，通过对故障出力做出增压补偿来达到保持半主动控制方案预期减震效果的目的。
Damping control method for large-span long-connected continuous bridge
The invention discloses a large-span long-connected continuous bridge damping control method which comprises the following steps: S1, constructing a dynamic finite element analysis model of a large-span long-connected continuous bridge, taking a magneto-rheological damper as a damping control device of the continuous bridge, constructing a controller dynamic model, and jointly taking the magneto-rheological damper and the controller dynamic model as a damping control system; s2, for a damping control system, performing output control on the continuous bridge by adopting a semi-active control scheme considering fault tolerance; and S3, carrying out anti-seismic reliability analysis on the continuous bridge structure under random seismic excitation, and determining an optimal output control scheme to carry out damping control on the continuous bridge. According to the invention, the fault mode of the actuator is analyzed aiming at the situation that the normal output control is influenced by the failure fault possibly occurring in the operation process of the magneto-rheological damper at the control part, and the fault-tolerant control is considered into the semi-active control scheme based on the analysis; the purpose of keeping the expected damping effect of the semi-active control scheme is achieved by conducting pressurization compensation on fault output.
本发明公开了一种大跨长联连续桥梁减震控制方法，包括S1、构建大跨长联连续桥梁的动力有限元分析模型，将磁流变阻尼器作为连续桥梁的减震控制装置并构建控制器动力模型，共同作为减震控制系统；S2、对于减震控制系统，采用考虑容错的半主动控制方案对连续桥梁进行出力控制；S3、对随机地震激励下的连续桥梁结构进行抗震可靠性分析，确定最优出力控制方案对连续桥梁进行减震控制。本发明针对控制部位的磁流变阻尼器在运行过程中可能出现失效故障影响正常出力控制的情况，对作动器的故障模式进行了分析，并基于此将容错控制考虑进半主动控制方案中，通过对故障出力做出增压补偿来达到保持半主动控制方案预期减震效果的目的。
Damping control method for large-span long-connected continuous bridge
一种大跨长联连续桥梁减震控制方法
ZHANG JINPENG (Autor:in) / XU JIANGUO (Autor:in) / HUANG LIANG (Autor:in) / LI WEIGUO (Autor:in) / FENG XIAOYU (Autor:in) / GENG YUPENG (Autor:in) / LIU DUN (Autor:in) / TANG WEI (Autor:in) / ZHU CHUANG (Autor:in) / REN QICHAO (Autor:in)
25.11.2022
Patent
Elektronische Ressource
Chinesisch
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