针对时间延迟系统的基于内存的最佳反控制,适用于抑制再生聊天
Pourya Shadkami Ahvazi1, Hossein Mohammadi1, Mohsen Mohammadi1
1School of Mechanical Engineering, Shiraz University, Shiraz, Iran.
ISA transactions
|July 30, 2025
概括
这项研究介绍了一种基于内存的最佳控制器,以抑制削喋喋不休,这种振动会损害表面质量和工具寿命. 新的控制器确保了系统的稳定性,并允许更深的切割.
科学领域:
- 机械工程 机械工程
- 控制系统工程 控制系统工程
- 制造过程 制造过程 制造过程
背景情况:
- 研磨声,一种自我激发的振动,降低了工件表面质量,增加了工具磨损.
- 喋喋不休显著限制了加工效率和部件精度.
- 将聊天描述为一个时间延迟系统对于有效的抑制至关重要.
研究的目的:
- 提出一个最佳的延迟依赖的基于内存的控制器来抑制削聊天.
- 提高闭环系统的稳定性,并扩大削中稳定的运行区域.
- 在非线性动态条件下证明控制器的有效性.
主要方法:
- 基于内存的控制器的设计,使用一般的Lyapunov函数,结合当前和延迟的系统状态.
- 控制问题作为线性正方体调节器 (LQR) 的表述.
- 通过近似矩阵函数,通过线性矩阵不等式 (Linear Matrix Inequalities, LMI) 有效地导出最佳控制收益.
主要成果:
- 提出的基于内存的控制器确保了削系统的非对称稳定性.
- 它显著扩大了稳定区域,允许更大的轴切割深度.
- 控制器有效地抑制聊天,即使使用非线性动态建模,性能优于无内存控制器.
结论:
- 开发的最佳依赖延迟的基于内存的控制器在抑制削聊天方面非常有效.
- 这种方法通过允许更深的切割来提高加工稳定性和生产率.
- 基于LMI的方法提供了一种有效的方式,以获得制造业时间延迟系统的最佳控制收益.
关键词:
线性矩阵不等式 (LMI) 是指线性矩阵不等式.线性二次调节器 (LQR) 是指线性二次调节器.基于内存的反控制器.研磨过程稳定性 研磨过程稳定性非线性振动是一种非线性振动.最佳的依赖延迟的控制.时间延迟系统的时间延迟系统更多相关视频
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