适应性故障耐受性控制用于带有压电补丁的悬臂厚板
Azin Nadi1, Mojtaba Mahzoon2, Ehsan Azadi Yazdi2
1School of Mechanical Engineering, Shiraz University, Shiraz, Fars, 7193616548, Iran. azin.nadi@shirazu.ac.ir.
Scientific reports
|January 2, 2025
概括
本研究介绍了压电系统的自适应故障耐受性控制 (AFTC) 框架,有效地管理传感器故障和干扰. 这种新的方法确保了系统的稳定性,并增强了轨迹跟踪,优于传统方法.
科学领域:
- 控制系统工程 控制系统工程
- 材料科学 (压电材料)
- 机械工程 机械工程
背景情况:
- 压电传感器补丁在先进系统中至关重要,但容易发生故障 (漂移,偏移,不准确) 和外部干扰.
- 现有的耐故障控制方法经常单独解决传感器故障,从而限制了综合系统的稳定性.
- 带有压电元件的杆厚板呈现复杂的动态,需要先进的控制策略.
研究的目的:
- 为使用压电传感器补丁的系统开发一种新的自适应故障耐受性控制 (AFTC) 框架.
- 同时解决传感器故障和外部干扰,确保强大的系统性能和稳定性.
- 与传统的控制技术相比,验证拟议的AFTC框架的有效性.
主要方法:
- 在AFTC框架内集成自适应估计,以检测和补偿传感器故障和系统不确定性.
- 基于利亚普诺夫稳定性分析的控制策略的开发,以保证在故障条件下统一的最终边界性.
- 在各种故障场景下,进行了广泛的模拟研究,将AFTC与倒退滑动模式控制 (BSMC) 进行比较.
主要成果:
- 与BSMC相比,AFTC框架展示了优越的故障补偿和干扰排斥能力.
- 在故障条件下,AFTC显著改善了轨迹跟踪和适应,性能降低最小.
- 拟议的方法确保了系统稳定性和强大的控制,尽管传感器漂移,偏差和准确性损失.
结论:
- 开发的AFTC框架为控制带有压电传感器补丁的系统提供了一个全面而强大的解决方案,有效地处理多种故障类型和干扰.
- 这项研究将耐故障控制策略扩展到包含压电元件的复杂系统,为未来的进步铺平了道路.
- 经过验证的AFTC的有效性为依赖于压电传感技术的系统实施可靠控制提供了坚实的基础.
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