Intelligent backstepping sliding-mode control using RBFN for two-axis motion control system

2005 ◽  
Vol 152 (5) ◽  
pp. 1321 ◽  
Author(s):  
P.-H. Shen ◽  
F.-J. Lin
Keyword(s):  
Control System ◽  
Sliding Mode Control ◽  
Motion Control ◽  
Sliding Mode ◽  
Motion Control System ◽  
Mode Control ◽  
Backstepping Sliding Mode Control

A Novel Sliding Mode Motion Control for Parallel Mechanism of Virtual Axis Machine Tool

2011 ◽  
Vol 138-139 ◽  
pp. 523-528
Author(s):  
Guo Qin Gao ◽  
Hai Bin Zheng ◽  
Xue Mei Niu
Keyword(s):  
Control System ◽  
Sliding Mode Control ◽  
Machine Tool ◽  
Motion Control ◽  
Parallel Mechanism ◽  
Sliding Mode ◽  
External Disturbances ◽  
Mode Control ◽  
Dynamic Sliding Mode Control ◽  
Dynamic Sliding Mode

This paper addresses the motion control of the parallel mechanism of virtual axis machine tool, which has a complex system model, the nonlinear and strong coupling characteristics and has strong external disturbances in high-speed machining. To further enhance its motion control performances, a novel adaptive dynamic sliding mode control method is proposed. The designed control system stability is proved theoretically. By building a new switching function, the second-order dynamic sliding mode control algorithm is designed to reduce the chattering of the conventional sliding mode control effectively and overcome the adverse effects of the fast changing dynamics of the actuators. By introducing the adaptive control, unknown external disturbances can be estimated online, which can improve the ability of resisting strong disturbances and the control precision of virtual axis machine tool. The simulation results for the virtual axis machine tool show that the designed control system has the good performances in tracking and resisting strong disturbances and can achieve the high precision motion control of the parallel mechanism of virtual axis machine tool.

scholarly journals Design of Head-Pursuit Guidance Law Based on Backstepping Sliding Mode Control

2019 ◽  
Vol 2019 ◽  
pp. 1-18
Author(s):  
Chenqi Zhu ◽  
Zhengyu Guo
Keyword(s):  
Control System ◽  
Sliding Mode Control ◽  
Sliding Mode ◽  
Three Dimensional ◽  
System Model ◽  
Mode Control ◽  
Guidance Law ◽  
Plane System ◽  
Backstepping Sliding Mode Control ◽  
Second Order Systems

In order to meet the needs of high-precision guidance for intercepting hypersonic targets, a novel head-pursuit guidance law considering the dynamic characteristics of a missile control system and the target mobility is presented via combining a fast power reaching law with backstepping sliding mode control in this paper. Initially, a three-dimensional head-pursuit system model of the missile and target is established. Subsequently, the system model is decomposed into a pitch plane system and lateral plane system, the control system dynamics are equivalent to second-order systems, and finite-time disturbance observers are introduced to estimate the target accelerations. On the basis of the previous work, the head-pursuit guidance laws of the vertical system and the lateral system which can stabilize the closed-loop system are designed separately and strict proofs of the methods are given. Finally, simulations are carried out to verify the effectiveness of this head-pursuit guidance law.

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