Anti-windup design for input-coupled double integrator systems with application to quadrotor UAV’s

Ofodile, Nkemdilim A.; Turner, Matthew C.

doi:10.1016/j.ejcon.2017.07.002

Cited by 17 publications

(5 citation statements)

References 29 publications

(48 reference statements)

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“…The trajectory of the motion of all vertices of a square is the same flat curve-the hypotrochoid17 in the form of a pentagon (Figure 1). The radius of curvature and, consequently, the gripping capacity of the working surfaces of tetrahedral rollers is the same as for conventional cylindrical rolls with a diameter D. Moreover, the overall dimensions of the cross-section of a square roll are approximately half that of the diameter of a cylindrical roll (Ofodile and Turnera, 2017).…”

Section: Methodsmentioning

confidence: 99%

Experimental Research of Characteristics of Crushers With Cycloidal Motion of Working Bodies

Rabat¹,

Salmanova²

2018

PTQ

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The use of different crushers to obtain the required size of the stone material. This work presents experimental studies of the characteristics of a crusher with a complex movement of working organs. The objectives of the study are, a sieve analysis of the obtained product (crushed stone) and the determination of the optimal speed of the working bodies (rolls) to obtain high-quality cubic shape crushed stone. In the experiment, the raw material is fed into the working space (into the crushing chamber) through the hopper and moves by a flat flow between the rollers. The edges of the rolls roll symmetrically from two sides to the flow of material, approaching in the area of the crushing zone and diverging in the region of the unloading zone. The authors determined the optimal rolls for obtaining high-quality cubiform crushed stone (over 80%). As a result, of the research, it was established that the grain composition of the fraction is within the standard of the Republic of Kazakhstan 1225-2003 t.3 – is obtained cubiform crushed stone, with an rotational speed of rolls of 100-120 rpm.

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Section: Methodsmentioning

confidence: 99%

Experimental Research of Characteristics of Crushers With Cycloidal Motion of Working Bodies

Rabat¹,

Salmanova²

2018

PTQ

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“…By linearizing the dynamic system around an operating point, the linear model of the quadcopter is given by [32]:…”

Section: ω = [̇̇] and ̇= [̈̈]mentioning

confidence: 99%

Control Strategies and Novel Techniques for Autonomous Rotorcraft Unmanned Aerial Vehicles: A Review

2020

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This paper presents a review of the various control strategies that have been conducted to address and resolve several challenges for a particular category of unmanned aerial vehicles (UAVs), the emphasis of which is on the rotorcraft or rotary-wing systems. Initially, a brief overview of the important relevant definitions, configurations, components, advantages/disadvantages, and applications of the UAVs is first introduced in general, encompassing a wide spectrum of the flying machines. Subsequently, the focus is more on the two most common and versatile rotorcraft UAVs, namely, the twin-rotor and quadrotor systems. Starting with a brief background on the dual-rotor helicopter and a quadcopter, the full detailed mathematical dynamic model of each system is derived based on the Euler-Lagrange and Newton-Euler methods, considering a number of assumptions and considerations. Then, a state-of-the-art review of the diverse control strategies for controlling the rotorcraft systems with conceivable solutions when the systems are subjected to the different impediments is demonstrated. To counter some of these limitations and adverse operating/loading conditions in the UAVs, several innovative control techniques are particularly highlighted, and their performance are duly analyzed, discussed, and compared. The applied control techniques are deemed to produce a useful contribution to their successful implementation in the wake of varied constraints and demanding environments that result in a degree of robustness and efficacy. Some of the off-the-shelf developments in the rotorcraft systems for research and commercial applications are also presented.

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“…The traditional GA is used to simulate the motion and attitude control and the steady tracking error occurs in the boundary layer. In view of the disadvantages and defects of the traditional methods, 17 this article presents an improved GA based on the human body posture simulation control algorithm in sports training. First, three state-space equations of human body in the virtual world of genetic space in physical training are constructed as follows…”

Section: Design Of Improved Genetic Control Algorithmmentioning

confidence: 99%

Research on inverse simulation of physical training process based on wireless sensor network

Rouxia

Chen²,

Shifang³

et al. 2020

International Journal of Distributed Sensor Networks

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In order to improve the control ability of the human body in the process of physical training, it is necessary to carry out the inverse simulation analysis of the physical training process and establish the process control model of the physical training. The complex problem of high-dimensional spatial motion planning involved in physical training is decomposed into a series of sub-problems in low-dimensional space, and the inertial attitude parameter fusion is carried out according to the position and pose state of the human body in the end of the workspace during the process of physical training. The design of sensor node and base station in the system can realize real-time collection of motion parameters of motion collectors. The multi-dimensional control of physical training process is carried out by fuzzy constraint and inverse integral control, and the attitude parameters of human body are adjusted by means of mechanical analysis model and inertial parameter analysis method. The simulation results show that the inversion simulation control has better convergence, higher control quality, and better inverse simulation performance in the process of physical training, which can effectively guide physical training and improve the effect of physical training.

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Anti-windup design for input-coupled double integrator systems with application to quadrotor UAV’s

Cited by 17 publications

References 29 publications

Experimental Research of Characteristics of Crushers With Cycloidal Motion of Working Bodies

Experimental Research of Characteristics of Crushers With Cycloidal Motion of Working Bodies

Control Strategies and Novel Techniques for Autonomous Rotorcraft Unmanned Aerial Vehicles: A Review

Research on inverse simulation of physical training process based on wireless sensor network

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