基于磁铁神经阻尼器的结构的随机半活性控制方法,考虑到时间延迟
Zhenkai Zhang1, Zhiwei Bao2, Wenyong Ma3
1School of Civil Engineering, Shijiazhuang Tiedao University; Key Laboratory of Roads and Railway Engineering Safety Control, Shijiazhuang Tiedao University; zhangzhenkai@stdu.edu.cn.
Journal of visualized experiments : JoVE
|April 21, 2025
概括
这项研究引入了一种新的控制方法 (SOSC-PSO),通过补偿时间延迟来提高使用磁铁石学 (MR) 阻尼器的结构的可靠性. 优化的方法提高了在地震事件下结构控制系统的性能.
科学领域:
- 土木工程 土木工程是指土木工程.
- 控制系统工程 控制系统工程
- 结构动力学 结构动力学
背景情况:
- 在土木工程结构中,磁铁石学 (MR) 阻尼器对于半活性控制至关重要.
- 反过程中的时间延迟显著降低了在随机激发下结构的可靠性.
- 当前的控制方法在遇到时间延迟时,难以保持结构完整性.
研究的目的:
- 提出一种新的控制方法 (SOSC-PSO),以弥补MR阻尼器系统的时间延迟.
- 提高受随机激发的土木结构的可靠性.
- 根据系统可靠性标准,优化控制参数.
主要方法:
- 开发了一种随机最佳半活性控制方法,使用时间延迟补偿 (SOSC-PSO).
- 作为当前和先前状态的函数来抵消时间延迟的衍生半活性控制力.
- 使用系统可靠性标准优化关键控制参数.
- 在地震刺激下对单自由度和多自由度结构的方法进行了验证.
主要成果:
- 证实时间延迟显著降低了MR阻尼器的性能.
- 通过SOSC-PSO方法,通过弥补时间延迟,控制效率得到了显著改善.
- 优化参数进一步提高了结构控制系统的可靠性,而不是优化方法.
结论:
- 该SOSC-PSO方法有效地减轻了MR阻尼器基础结构控制时间延迟的负面影响.
- 基于可靠性标准的参数优化对于最大限度地提高半活性控制系统的性能和可靠性至关重要.
- 拟议的方法提供了一个强大的解决方案,用于提高土木工程结构的抗震威胁的弹性.
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