Using the expert system to analyze loom performance

Karnoub, Amer; Kadi, Nawar; Azari, Z.

doi:10.1080/00405000.2016.1160817

Cited by 5 publications

(4 citation statements)

References 5 publications

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“…The maximum relative error of tension at different experimental conditions was calculated and compared to the traditional PID control algorithm (PID/the genetic PID). [33][34][35][36][37][38] The results are shown in Table 4. Table 4 shows that although the tension fluctuation under traditional PID control is <10%, which meets the basic requirements of warp tension control, it is difficult to guarantee its control performance with the improvement in weaving speed.…”

Section: Experimental Verification and Discussionmentioning

confidence: 99%

Optimal analysis and application of the warp tension control system for a rapier loom

Xiao

Zhang

Liu

et al. 2021

Textile Research Journal

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Traditional proportional–integral–derivative (PID) control performance optimization is an essential method to improve a loom’s warp tension control performance. This work proposes an improved genetic algorithm optimized PID control scheme to overcome the decline in control performance of the traditional PID control algorithm in a loom’s warp tension control system. Through the decoupling analysis of loom motion mechanism, the establishment of warp tension model and the optimization of fitness evaluation mechanism of genetic algorithm can effectively overcome the problems of local optimal solution and algorithm degradation of genetic algorithm. Simulation experiments were carried out with the traditional PID, the integral separation PID, and the genetic PID in warp tension control. The results show the advantage of the genetic-PID algorithm to control warp tension stability. Ultimately, according to the functional characteristics of the loom mechanism, a tension control platform for experimental studies was established. The test results show that the maximum fluctuation range of warp tension is within [−2, +6] at the test speed of 850 rpm, which meets the requirements of long-term stable and reliable control of warp tension under different weaving conditions.

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Section: Experimental Verification and Discussionmentioning

confidence: 99%

Optimal analysis and application of the warp tension control system for a rapier loom

Xiao

Zhang

Liu

et al. 2021

Textile Research Journal

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show abstract

“…Appropriate yarn tension makes the winding bobbin roll efficient, increasing the production efficiency of winding, twisting, weaving, and knitting [ 2 , 3 , 4 ]. Therefore, selecting an appropriate detection circuit is necessary to ensure the precision and stability of the yarn tension sensor’s output signal [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Frequency Stability of SAW Yarn Tension Sensor by Using the Dual Differential Channel Surface Acoustic Wave Oscillator

Feng

Liu

Wang

2023

Sensors

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This paper presents a 60 MHz surface acoustic wave (SAW) yarn tension sensor incorporating a novel SAW oscillator with high-frequency stability. A SAW delay line was fabricated on ST-X quartz substrate using the unbalanced-split electrode and bi-directional engraving slots. The dual differential channel delay linear acoustic surface wave oscillator is designed and implemented to test yarn tension, which can effectively remove the interference of temperature, humidity, and other peripheral factors through differential design. The yarn tension sensor using the surface acoustic wave has high-precision characteristics, and the SAW delay line oscillator is designed to ensure the test system’s stable operation. The effect of time and tension on oscillator frequency stability is studied in detail, and the single oscillator and the dual differential channel system were tested, respectively. After using the dual differential channel system, the short-term frequency stability from is reduced from 1.0163 ppm to 0.17726 ppm, the frequency accuracy of the tension sensor is improved from 134 Hz to 27 Hz, and the max frequency jump steady is reduced from 2.2395 ppm to 0.45123 ppm.

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“…Reference [7] proposed a fuzzy optimal integral separation PID warp tension control scheme based on process sampling to improve the warp tension control level of the loom. Reference [8] proposes an improved model and combines it with genetic algorithms and gradient-based methods to calculate the optimal setting parameters of the weaving process to ensure fabric quality. However, considering that the loom is a complex distributed mechanical system with multiple control degrees of freedom, its system design contains lots of control units.…”

Section: Introductionmentioning

confidence: 99%

Observed-based Event-triggered Sliding Mode Control of Networked Control System for Carbon Fiber Diagonal Loom

Li¹,

Liu²,

Zhang³

2023

SJT

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In this paper, an observed-based sliding mode control with event-triggered mechanism for the carbon fiber diagonal loom tension networked control is studied. According to the characteristics of the loom, the networked control is introduced into the loom tension control, the influence of the introduction of network factors is fully considered, and a tension model containing network factors is finally established. An observed-based sliding mode control is adopted. Meanwhile, to further reduce the amount of data transmission and improve the service life of the equipment, an event-triggered condition is also introduced, then the asymptotically stability of the proposed control system and the feasibility of control performance are proved through the Lyapunov functional. Finally, the rapid feasibility of the proposed algorithm is demonstrated by a simulation example.

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Using the expert system to analyze loom performance

Cited by 5 publications

References 5 publications

Optimal analysis and application of the warp tension control system for a rapier loom

Optimal analysis and application of the warp tension control system for a rapier loom

Enhanced Frequency Stability of SAW Yarn Tension Sensor by Using the Dual Differential Channel Surface Acoustic Wave Oscillator

Observed-based Event-triggered Sliding Mode Control of Networked Control System for Carbon Fiber Diagonal Loom

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