Application of Adaptive Control on Carbon Fiber Diagonal Loom
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ISSN:1598-6446 eISSN:2005-4092 http://www.springer.com/12555
Application of Adaptive Control on Carbon Fiber Diagonal Loom Wei Liu, Shuo Wang, Fengdong Shi*, Guowei Xu, and Yi Cheng Abstract: In order to improve the control effect of the tension fluctuation, a single neuron adaptive control strategy based on quadratic performance index is proposed in this paper. The structure and the working principle of carbon fiber diagonal loom are studied which can be used for dynamic analysis and controller design. With the idea of optimal control, the parameters of the controller are adjusted by minimizing the sum of the square of the output error and the control increment. The simulation results based on TrueTime show that the strategy adopted in this paper compared with the traditional control strategy have the advantages of faster response time and smaller overshoot in networked control system. Keywords: Carbon fiber diagonal loom, networked control system, optimal control, single neuron adaptive control, tension fluctuation.
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INTRODUCTION
In recent years, with the rapid development of communication, automation, machinery and some other fields, the structure of traditional control system has also changed. For example, in driverless cars, wireless network robots, aerospace and other aspects, networked control has gradually played an irreplaceable role [1–3]. Therefore, it is inevitable to consider network delay, data loss, bandwidth limitation and other issues. Whether different control algorithms can still maintain good control performance in the network system is an urgent problem [4]. In the process of practical research, because the actual network control system platform is time-consuming and parameter setting is difficult, the simulation environment built by the software can make a better evaluation, which not only saves time, but also saves economic cost. It helps to facilitate the better adjustment and optimization of the controller parameters [5–7]. So based on the carbon fiber diagonal loom, a single neuron adaptive control strategy is proposed to get the better control effect compared with the traditional control strategy by this paper. In terms of structure and design, there are many differences between carbon fiber diagonal loom and traditional loom. The appearance of carbon fiber diagonal loom is to solve the technical problem of one-time weft insertion molding. The main core devices are five parts: let-off sys-
Fig. 1. Physical drawing of carbon fiber diagonal loom.
tem, opening system, weft insertion system, take-up system and beat-up system. However, with the increase of warp density and the number of axles, the traction of the whole control system also needs to be increased. Therefore, it is necessary to study and analyze this kind of control device. The figure of carbon fiber diagonal loom is shown in Fig. 1. The internal structure of carbon fiber is graphite microcrystalline, so it has high strength and modulus in the direction of fiber axis. However, compared with other process materials, it is a
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