农业拖拉机半活性悬挂的最佳控制使用线性正方形高斯控制
Da-Vin Ahn1,2, Kyeongdae Kim1, Jooseon Oh3
1Department of Biosystems Engineering, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea.
一种用于拖拉机的新型半活性悬架系统使用水气动机制和线性-正方形-高斯 (LQG) 控制算法来显著降低行驶振动. 这种创新的拖拉机悬挂技术提高了操作员的舒适性,并可以降低系统成本.
科学领域:
- 农业工程 农业工程
- 控制系统工程 控制系统工程
- 机械工程 机械工程
背景情况:
- 拖拉机骑行时的振动会对操作员的舒适度和生产力产生负面影响.
- 现有的悬架系统可能无法充分应对动态振动的挑战.
- 水气系统为先进的悬挂控制提供了潜力.
研究的目的:
- 为拖拉机设计和验证半活性悬挂系统.
- 为了最大限度地减少骑行振动,使用水气动机制和控制算法.
- 为了提高拖拉机机的舒适性和运营效率.
主要方法:
- 开发了一种使用水气动机制的半活性悬浮.
- 设计了一种线性-正方形-高斯 (LQG) 的最佳控制算法,用于悬挂控制.
- 使用实际参数建模了拖拉机,并使用基于卡尔曼波器的状态观察器进行状态估计.
- 验证了状态观察者对垂直速度 (83%) 和加速 (79%) 的准确性.
主要成果:
- LQG控制器显著降低了拖拉机机的垂直加速度.
- 峰值垂直加速降低了高达48.97%的速度.
- 与安装系统相比,根正方形垂直加速度降低了高达47.06%.
结论:
- 设计的半活性悬架有效地减少了拖拉机的行驶振动.
- 在LQG控制算法和卡尔曼波器提供准确的状态估计和控制.
- 这项技术为降低系统成本和改进农业机械设计提供了一条途径.
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