In this note, a repetitive learning control (RLC) approach is proposed to deal with periodic tracking tasks for uncertain time-varying delay systems. The design of an open-close loop P type iterative learning controll...
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This paper presents a novel robot that combines flying and ground moving capabilities. In doing so, new applications areas for robotics are created in which these two capabilities are needed to perform the tasks. The ...
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ISBN:
(纸本)9781467344401
This paper presents a novel robot that combines flying and ground moving capabilities. In doing so, new applications areas for robotics are created in which these two capabilities are needed to perform the tasks. The flying motion will be based on the concept of flying mechanism of the quadrotor. Wheeled mobile platform is combined to the flying mechanism to facilitate ground motion. Transformation mechanism was developed to transform the robot from the ground motion configuration to the flying motion configuration and vice versa. The idea of this mechanism is to close the rotors' arms of the quadrotor and put them in the vertical position when the robot is used for ground motion. This is necessary to enable navigation through narrow spaces. A manipulator with 3-DOF has been added to handle objects during ground motion. After defining the appropriate mechanisms and the basic structure of the robot, geometrical dimensions and material selection of each part are decided. Then, CAD model is developed using SolidWorks, and an iterative process has been carried out to enhance and develop the robot structure and the transformation mechanism. The CAD model was tested using the finite element method in ANSYS14 where static structural study is performed. Finally, motors, sensors and control system hardware were selected for this robot. The analysis indicates the feasibility of the proposed robot.
Intelligent Pneumatic Actuators (IPA) is a new generation of actuator for Research and Development (R&D). The purpose of this paper is to present the System Identification (SI) technique and procedure for the IPA ...
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Intelligent Pneumatic Actuators (IPA) is a new generation of actuator for Research and Development (R&D). The purpose of this paper is to present the System Identification (SI) technique and procedure for the IPA system. System identification is used to obtain the mathematical model (transfer function) of the IPA system from the measured experimental data. Flow for the SI procedure starts with experimental setup, model structure selection, model estimation, model validation and finally testing with basic controller to prove the operation of IPA system. Auto Regressive with Exogenous Input (ARX) model is chosen as model structure of the system. Based on the input and output data of the system (model validation), best fit criterion and correlation analysis of the residual is analyzed to determine the adequate model to represent the IPA system. The result from SI model shows linear discrete model in order to obtain a discrete transfer function for the IPA system.
Electrostatic human body detector is a detector which obtain target information through catching the electrostatic field of the target. It play an important role in the human body detection technology. This paper focu...
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In this paper, the development of a water bath temperature system to control the liquid's temperature in the water bath will be presented. In order to develop the water bath temperature control system, MATLAB fuzz...
In this paper, the development of a water bath temperature system to control the liquid's temperature in the water bath will be presented. In order to develop the water bath temperature control system, MATLAB fuzzy logic toolbox will be utilized. The Fuzzy Logic controller (FLC) is designed to control water temperature based on the input acquired from the thermal transducer sensor. The inference engines that are used are; Max-min (Mamdani) method and centre of gravity technique for defuzzification. The 4 × 4 matrix rules for the controller will be used in this project. In addition, the USB NI-DAQ card will be used as xPC target to link the MATLAB software and real time application. The real time output temperature is validated based on the simulation's temperature which is initially set by user. It can be concluded the performance of real time study is in par with the simulation result.
The precise reproduction of geometrical form often constitutes a challenge in manufacturing of metal parts. The reasons for form deviation can be e.g. varying properties of the semi-finished product as well as wear of...
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The precise reproduction of geometrical form often constitutes a challenge in manufacturing of metal parts. The reasons for form deviation can be e.g. varying properties of the semi-finished product as well as wear of the punch-bending machine or the punch-bending tool themself. Usually the process parameters are manually adjusted on the introduction of new production scenario or after the deviation between the actual form of produced pieces and the designed form become clear. The choice of new process parameters is normally based on the experience of the machine operators. It leads to a time-consuming and expensive procedure right on the early stages of production scenarios as well as during the established production process. Furthermore, the trend of miniaturization of part sizes along with narrowing tolerances and increase in the strengths of materials drastically pushes up the requirements on the production process. Aiming at reduction of scrap rate and setup-time of production scenarios, a self-correcting control strategy has to be developed. The strategy is designed by modeling the bending process. In the first step the bending model has to be analyzed by varying of process variables (e.g. the strength or the geometrical properties of the material) influencing the process significantly. It is done by corresponding simulations. After that, the correlations between input and output variables were defined and different self-correcting control strategies were designed and tested. In order to identify and validate the simulation and to test the quality of the self-correcting control strategies, a special experimental tool, representing the most important bending operations, was built up at the University of Paderborn. The experimental tool is equipped with an additional measurement device and can be operated on a universal testing machine. Finally, the self-correcting control strategies were tested under real production conditions on the original tool in order to
The optimizing design of hybrid electric vehicle (HEV) aims at improving fuel economy and decreasing emissions subject to the satisfaction of its drivability. The concurrent optimization for main parameters of powertr...
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A reasonable control strategy for Parallel Hybrid Electric Vehicle can achieve optimal energy distribution so as to obtain good fuel economy and lower emissions. The article uses CRUISE to establish a powertrain model...
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This paper presents the integration results of the EMC2 software, mechatronic prototype and fuzzy PI controller. The structure of fuzzy controller has two-inputs, two-outputs (TITO) system where the error and derivati...
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This paper presents the integration results of the EMC2 software, mechatronic prototype and fuzzy PI controller. The structure of fuzzy controller has two-inputs, two-outputs (TITO) system where the error and derivative error are the inputs while the proportional and integral gains are the outputs. The fuzzy sets for each input are five Gaussian membership functions, the product fuzzy logic AND operator and the centroid defuzzifier are used to gain scheduling PI. The experimental results of the closed-loop system show the viability and effectiveness of the control position strategy. This mechatronic system is widely used in metal-mechanical industry.
An analysis of the coupling heart electric field is a pivotal step in the human body detection system which target for the heart coupling electric field between the operator and the detected living human. In this pape...
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