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Design and Experimental Validation of an Output Feedback Controller for a Pneumatic System with Distributed Parameters |
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Richard Kern(Technical University of Munich, Germany), Nicole Gehring(Johannes Kepler University, Austria), Joachim Deutscher(Friedrich-Alexander University Erlangen-Nürnberg, Germany), Michael Meißner(Technical University of Munich, Germany) |
| This paper considers the model-based control of a pneumatic system, where a tank is connected to a valve via a long tube. Due to the significant distance between the control input and the pressure in the tank to be controlled, a distributed-parameter model is used. Based on this PDE-ODE system, both, a backstepping controller and a backstepping observer are designed. Experimental results for tube lengths of approximately five and twenty meters show that this controller allows to track fast pressure changes in the tank almost perfectly. |
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A requirement for the number of items in a package produced by multi-head weighers |
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Yoshiyuki Karuno, Oki Nakahama(Kyoto Institute of Technology, Japan) |
| A subset selection problem is considered, which arises in automated packaging systems, so-called multi-head weighers. Given a finite set of items with their integral weights, the problem asks to find a subset of the items so that the total weight of chosen items is no less than an integral target weight, and it is made as close to the target weight as possible. A cardinality constraint is also imposed on the subset selection problem. A pseudo-polynomial time algorithm is designed to solve the problem under an assumption on the range of item weights. |
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Efficiency Analysis of Gear System Based on Gear Surface Micro-topography |
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Wei Liu(Chongqing University, China) |
| Efficiency Analysis of Gear System Based on Gear Surface Micro-topography
Wei Liu1, Yimin Shao1*, Hongwu Li2, Yan Cheng2, Jin Xu2
1 State Key Lab of Mechanical Transmission, Chongqing University, Chongqing, 400044, China ( ymshao@cqu.edu.cn )* Corresponding author
2 China North Vehicle Research Institute,Beijing, 100072, China
In order to accurately calculate the gear transmission efficiency, a new efficiency evaluation method is proposed considering the 3D micro-topography of the tooth surface. Firstly, a digital microsystem is used to obtain the surface micro-topography of gears. The ... |
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Efficiency Analysis of Planetary Gear Train under Ring Gear Deformation |
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Li Xuzhong(Chongqing university, China) |
| Transmission efficiency is a key parameter of planetary gear train, it has a significant effect on power density of transmission systems. Usually, ring gear is regard as a rigid part in the efficiency calculation of planetary gear train. However, most of the planetary gear train adopt flexible ring gear design, which means the deformation of ring gear is large. In addition, the deformation of the ring gear leads to the change of the meshing relationship of the gears in the planetary gear train, thus both the dynamic load, sliding speed and friction force in the planetary gear train are affecte |
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Construction and Efficiency Test of Solar Drying Cabinet for Nipa Palm Drying for Community Enterprise. |
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Prasit Phoosomma(Dhonburi Rajabhat Universityิ, Thailand) |
| The objectives of research are prototyping renewable energy from solar dryers can be used by a nipa palm, and comparing the performance and efficiency of solar energy. In order to use a niba palm drying and analyze the breakeven by electrical power for the nipa palm use the power replacement type of solar energy. An experiment, the effects of solar drying cabinet, there are three drying temperatures control settings at 50 oC, 60 oC, and 70 oC. The drying time of 6 hours. By choosing niba palm as the raw material for the experiment. The results show that the average solar energy intensity was |
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Controlling the Position of the Carriage in Real-Time Using the RBF Neural Network Based PID Controller |
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Hoang-Dung Nguyen, The Hien Huynh(Can Tho University, Viet Nam) |
| Controlling the Position of the Carriage in Real-Time
Using the RBF Neural Network Based PID Controller
H.-D. Nguyen, T. H. Huynh (Can Tho University, Vietnam)
This paper proposes an algorithm for estimating parameters of a proportional integral derivative (PID) controller in real-time using the radial basis function (RBF) neural network. The proposed algorithm is then applied to precisely control the position of a carriage through the Arduino control board. The experimental results show that the RBF based PID controller gives better performance than the conventional PID. |
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