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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/17526

    Title: A nonlinear inverse problem in estimating the heat flux of the disc in a disc brake system
    Authors: 陳文立
    Keywords: Inverse problem;Disc brake;Heat flux;Conjugate gradient method
    Date: 2011-10
    Issue Date: 2012-09-11 09:57:15 (UTC+8)
    Abstract: In this study, an inverse algorithm based on the conjugate gradient method and the discrepancy principle is applied to estimate the unknown space- and time-dependent heat flux of the disc in a disc brake system from the knowledge of temperature measurements taken within the disc. In the direct problem, the specific heat and thermal conductivity are functions of temperature; hence this is a nonlinear inverse problem. The temperature data obtained from the direct problem are used to simulate the temperature measurements, and the effect of the errors in these measurements upon the precision of the estimated results is also considered. Results show that an excellent estimation on the space- and time-dependent heat flux can be obtained for the test cases considered in this study. The current methodology can be also applied to the prediction of heat flux in the pads, and then the heat partition coefficient between the disc and the pad in a brake system can be calculated.
    Relation: Applied Thermal Engineering, 31(14), 2439-2448
    Appears in Collections:[機械工程系所] 期刊論文

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