Papers by Keyword: Control

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Authors: Chuan Qing Zhang, Jun Yi Shao, Ken Chen, Chang Zhi Ren
Abstract: In this paper, we present an object-oriented C++ library for robotic manipulator control and simulation, THRControl, which is inherited from Qt and VTK. The library package has advantages include support cross-platform applications; high flexibility and high computational efficiency meet the need of computations required in robot control such as forward kinematics, inverse dynamics, and jacobian. The experimental results show that it is very easy is construct a user-friendly manipulator control and simulation system.
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Authors: Christian Friedrich, Andreas Stanicki, Markus Bröcker, Armin Lechler, Alexander Verl
Abstract: Electric actuators are an important part of every manufacturing system. Often it is a problem to get a good motion control configuration which allows high performance tasks. This contribution shows how the mechanical load and the self-dynamics of the system associate. Based on this, it is possible to formulate an identification algorithm to estimate the mechanical load. Now all system parameters are known and the controller can compute automatically. Therefore we show the results in an experiment with a classic cascaded and a flatness-based controller.
451
Authors: Manuel de La Sen, A. Ibeas, S. Alonso-Quesada
Abstract: This paper studies a time-varyingSIS(i.e.containing susceptible and infected populations) propagation disease model exhibiting a nonlinear incidence rate and impulsive eventual culling of both populations so that the individuals recover with no immunity to the disease. The nonlinear incidence rate consists of two time-varying additive terms proportional to the susceptible and infected populations normalized to the total population.
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Authors: Yu Zhang, Peng Cheng, Teng Fei Yin
Abstract: In this paper it has made study on long time-delay network control system which is greater than one sampling period, it has made modeling on sensor node time drive, controller node and actuator node event-driven system The special question has been considered which was brought more than one sampling period delay, the fuzzy control logic has been applied in MATLAB to design an adaptive Fuzzy controller, when the network time delay changes the controller parameters can be adjusted dynamically, to make dynamic compensation on network time delay, and through simulation experiments to verify the algorithm effectiveness.
4837
Authors: Wei Tian
Abstract: In this paper, by regulating the dipole-dipole interaction between atoms, we can successfully control the behavior of single-photon transport in one-dimensional waveguide cavity. Our findings indicate that the dipole-dipole interaction is equivalent to the positive detuning. Furthermore, we also found that there is a competition between dipole-dipole interaction and the atom-cavity coupling. In addition, we also studied the influences of dipole-dipole interaction on transport spectrum under extreme conditions of high and low energy.
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Authors: Ling Chen, Hong Hua Wang, Cheng Liang Wang, Chao Tan
Abstract: Shaft voltage is widely existed in the operation of generator and needed to pay more attentions. Based on the mechanism of generator shaft voltage, this paper analyses and expounds the harmfulness of shaft voltage and shaft current, then summarizes the prevention and control measures of shaft voltage and the research status. The direction of generator shaft voltage is prospected for further research.
1445
Authors: Antoni Świć, Dariusz Wołos, Jarosław Zubrzycki, Marek Opielak, Arkadiusz Gola, Victor Taranenko
Abstract: The study determines the most suitable pattern of alignment and fixing of low-rigidity shafts; it also presents factors that determine such choice. The part is fixed both by force closing and kinematic closing. A new method for machining low rigidity shafts is developed to control the elastic-deformable state of these shafts in a technological system and to produce parts with the required accuracy during turning. To implement this new developed method for low rigidity shafts, an apparatus is designed. The apparatus allows to increase the rigidity of shafts during machining by the application of axial tensile force to the workpiece. Rational prime costs of preparing technological alignment centers at the stage of production preparation are determined; knowing these costs, it is possible to select a suitable machining technology for low rigidity shafts, to produce a technology-oriented design, and to reduce the costs of machining these shafts.
357
Authors: Christian Munzinger, Jürgen Fleischer, Gregor Stengel, Markus Schneider
Abstract: The prototype for the flying cutting of spatially curved extrusion profiles developed as part of the Collaborative Research Center Transregio 10 (SFB/TR 10) was tested as an integrated part of the overall system in first test runs. The profiles resulting from this process give proof of the potential involved in both, the novel curved profile extrusion (CPE) and the automatic supporting and cutting device. For subsequent automated processing to become possible, however, the reliably achievable accuracy of extruded profiles needs to be further improved. By the example of the extruded profiles produced so far, this article discusses potential factors that may impair profile accuracy and presents approaches and methods for the improvement of accuracy.
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Authors: Oscar F.S. Avilés, Crhistian C.G. Segura, Juan C.M. Hernandez, Mauricio M. Mauledoux, Max Suell Dutra
Abstract: The article is aimed at presenting the development of a kinematic model for the control of a mobile robot 6 wheel, all with both traction and rotation, the Ackerman model was chosen because the robot will move through paths designed for cars, and as it avoids slipping. Two models of simulation in MATLAB, one in continuous and one discrete space are also presented
441
Authors: Wim Serruys
Abstract: Three different and complementary ways of adaptive control are presented, each working on a different time scale. All three of them are made possible due to evolutions and developments in CNC controls. The first and most popular way of adaptive control is adaptive process control. Since the process variables in sheet metal equipment change significantly in milliseconds, the control loop must also perform on a sub second time scale. The second adaptive loop is adaptive production control. Modern CNC controls know what they are manufacturing and talk with higher production software. Instead of just executing a planning that came top down, the CNC has enough knowledge of its environment that it can propose an intelligent job sequence and hence react more effectively on unforeseen situations. These adaptive loops perform on a time scale of hours and days. The third adaptive loop is adaptive resource control. To produce sheet metal parts, we need several kinds of resources: human resources, material, consumables, energy and equipment. CNC sheet metal equipment is a considerable investment. However most production managers do not know how effective their resources are being used. By applying the principles of overall equipment effectiveness, we can close the resource control loop. This loop performs on a time scale of weeks and months.
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