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| 1 | 带扰动的线性系统微小故障早期诊断方法显示文摘针对带有未知扰动的线性系统微小故障的早期诊断,提出一类综合自适应滑模观测器方法,使得该观测器既能估计微小故障又能对未知扰动有强鲁棒性.将线性系统通过坐标变换解耦为两个子系统,其中:一个子系统与扰动无关,对其设计自适应观测器,实现对微小故障的检测;另一个子系统既受未知扰动又受微小故障的影响,对其设计滑模观测器,以消除未知扰动的影响,从而保证系统的强鲁棒性.通过四旋翼直升机模型验证了所提出的综合自适应滑模观测器微小故障早期诊断检测算法的有效性. | 柳春 姜斌 张柯 吴云凯 | 2015 | 上海交通大学学报2015，49，6： | 7 |
| 2 | Finite-time adaptive sliding mode control for heavyweight airdrop operations显示文摘This paper investigates the problem of designing a fast convergent sliding mode flight controller of a transport aircraft for heavyweight airdrop operations in the presence of bounded uncertainties without the prior knowledge of the bounds. On the basis of feedback linearization of the aircraft-cargo motion system, a novel integral sliding mode flight control law with gains adaptation is proposed. It contains a nominal control law used to achieve finite-time stabilization performance and a compensated control law used to reject the uncertainties. The switching gains of the compensated control law are tuned using adaptation algorithms, and the knowledge of the bounds of the uncertainties is not required to be known in advance. Meanwhile, the severe chattering of the sliding mode control that caused by high switching gains is effectively reduced.The controller and its performance are evaluated on a transport aircraft performing a maximum load airdrop task in a number of simulation scenarios. | Ri Liu Xiuxia Sun Wenhan Dong Dong Wang | 2017 | Journal of Systems Engineering and Electronics2017，28，2： | 4 |
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