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Fuzzy Adaptive Predictive Inverse for Nonlinear Transient Heat Transfer Process

机译：非线性瞬态传热过程的模糊自适应预测逆

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摘要

For nonlinear transient heat transfer system, a fuzzy adaptive predictive inverse method (FAPIM) is proposed to inverse transient boundary heat flux. The influence relationship matrix is utilized to establish time-varying linear prediction model of the temperatures at measurement point. Then, the predictive and measurement temperatures are used to inverse the heat flux at current moment by rolling optimization. A decentralized fuzzy inference (DFI) mechanism is established. The deviation vector of the predictive temperature is adopted to conduct decentralized inference by a set of fuzzy inference units, and then, the influence relationship matrix is updated online to guarantee the adaptive ability of the prediction model by weighting fuzzy inference components. FAPIM is utilized to inverse the unknown heat flux of a heat transfer system with temperature-dependent thermal properties, which has shown that the inverse method has better adaptive ability for the inverse problems of nonlinear heat transfer system.
机译：对于非线性瞬态传热系统，提出了一种模糊自适应预测逆方法（FAPIM）来对瞬态边界热通量进行逆向。利用影响关系矩阵建立测量点温度的时变线性预测模型。然后，通过滚动优化，将预测温度和测量温度用于逆转当前时刻的热通量。建立了分布式模糊推理（DFI）机制。采用预测温度的偏差矢量通过一组模糊推理单元进行分散推理，然后通过对模糊推理分量加权，在线更新影响关系矩阵，以保证预测模型的自适应能力。 FAPIM被用来逆转具有温度依赖的热特性的传热系统的未知热通量，这表明该方法对非线性传热系统的反问题具有更好的自适应能力。

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  • 来源
    《Journal of Heat Transfer》 |2017年第10期|102002.1-102002.9|共9页
  • 作者

    Wang Guangjun; Li Yanhao; Chen Hong; Wan Shibin; Lv Cai;

  • 作者单位

    School of Power Engineering, Chongqing University, Chongqing, China,Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, China;

    School of Power Engineering, Chongqing University, Chongqing, China,Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, China;

    School of Power Engineering, Chongqing University, Chongqing, China,Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, China;

    School of Power Engineering, Chongqing University, Chongqing, China,Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, China;

    School of Power Engineering, Chongqing University, Chongqing, China,Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    adaptive; fuzzy inference; inverse heat conduction problems; nonlinear; prediction;

    机译：自适应;模糊推理;导热反问题;非线性;预测;

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