An inverse problem of estimating temperature dependent thermal conductivity in composite material

Cheng Hung Huang, Jan Yuan Yan

研究成果: Conference contribution

摘要

An inverse analysis utilizing the conjugate gradient method of minimization and adjoint equation is used successfully to solve the inverse problem in estimating the temperature dependent thermal conductivity of a composite material. No prior information is available on the functional form of the unknown thermal conductivity in the present study, thus, it is classified as the function estimation in inverse calculation. The accuracy of the inverse analysis is examined by using the simulated exact and inexact measurements that were obtained within the medium. Results show that an excellent estimation on the thermal conductivity can be obtained within a very short CPU time in VAX-9420 computer with any arbitrary initial guesses by using just boundary measurements (including the boundaries between different materials). The advantages of applying the present algorithm in inverse analysis can greatly simplify the experimental set up, diminish the sensitivity to the measurement errors and reduce the CPU time in inverse calculation, while the reliable predictions can still be achieved.

原文English
主出版物標題5th International Offshore and Polar Engineering Conference, ISOPE 1995
發行者International Society of Offshore and Polar Engineers
頁面264-270
頁數7
ISBN(列印)1880653168
出版狀態Published - 1995 一月 1
事件5th International Offshore and Polar Engineering Conference, ISOPE 1995 - The Hague, Netherlands
持續時間: 1995 六月 111995 六月 16

出版系列

名字Proceedings of the International Offshore and Polar Engineering Conference
1995-June
ISSN(列印)1098-6189
ISSN(電子)1555-1792

Other

Other5th International Offshore and Polar Engineering Conference, ISOPE 1995
國家Netherlands
城市The Hague
期間95-06-1195-06-16

指紋

Inverse problems
Thermal conductivity
Program processors
Composite materials
Conjugate gradient method
Measurement errors
Temperature

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

引用此文

Huang, C. H., & Yan, J. Y. (1995). An inverse problem of estimating temperature dependent thermal conductivity in composite material. 於 5th International Offshore and Polar Engineering Conference, ISOPE 1995 (頁 264-270). (Proceedings of the International Offshore and Polar Engineering Conference; 卷 1995-June). International Society of Offshore and Polar Engineers.
Huang, Cheng Hung ; Yan, Jan Yuan. / An inverse problem of estimating temperature dependent thermal conductivity in composite material. 5th International Offshore and Polar Engineering Conference, ISOPE 1995. International Society of Offshore and Polar Engineers, 1995. 頁 264-270 (Proceedings of the International Offshore and Polar Engineering Conference).
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abstract = "An inverse analysis utilizing the conjugate gradient method of minimization and adjoint equation is used successfully to solve the inverse problem in estimating the temperature dependent thermal conductivity of a composite material. No prior information is available on the functional form of the unknown thermal conductivity in the present study, thus, it is classified as the function estimation in inverse calculation. The accuracy of the inverse analysis is examined by using the simulated exact and inexact measurements that were obtained within the medium. Results show that an excellent estimation on the thermal conductivity can be obtained within a very short CPU time in VAX-9420 computer with any arbitrary initial guesses by using just boundary measurements (including the boundaries between different materials). The advantages of applying the present algorithm in inverse analysis can greatly simplify the experimental set up, diminish the sensitivity to the measurement errors and reduce the CPU time in inverse calculation, while the reliable predictions can still be achieved.",
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Huang, CH & Yan, JY 1995, An inverse problem of estimating temperature dependent thermal conductivity in composite material. 於 5th International Offshore and Polar Engineering Conference, ISOPE 1995. Proceedings of the International Offshore and Polar Engineering Conference, 卷 1995-June, International Society of Offshore and Polar Engineers, 頁 264-270, 5th International Offshore and Polar Engineering Conference, ISOPE 1995, The Hague, Netherlands, 95-06-11.

An inverse problem of estimating temperature dependent thermal conductivity in composite material. / Huang, Cheng Hung; Yan, Jan Yuan.

5th International Offshore and Polar Engineering Conference, ISOPE 1995. International Society of Offshore and Polar Engineers, 1995. p. 264-270 (Proceedings of the International Offshore and Polar Engineering Conference; 卷 1995-June).

研究成果: Conference contribution

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AB - An inverse analysis utilizing the conjugate gradient method of minimization and adjoint equation is used successfully to solve the inverse problem in estimating the temperature dependent thermal conductivity of a composite material. No prior information is available on the functional form of the unknown thermal conductivity in the present study, thus, it is classified as the function estimation in inverse calculation. The accuracy of the inverse analysis is examined by using the simulated exact and inexact measurements that were obtained within the medium. Results show that an excellent estimation on the thermal conductivity can be obtained within a very short CPU time in VAX-9420 computer with any arbitrary initial guesses by using just boundary measurements (including the boundaries between different materials). The advantages of applying the present algorithm in inverse analysis can greatly simplify the experimental set up, diminish the sensitivity to the measurement errors and reduce the CPU time in inverse calculation, while the reliable predictions can still be achieved.

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Huang CH, Yan JY. An inverse problem of estimating temperature dependent thermal conductivity in composite material. 於 5th International Offshore and Polar Engineering Conference, ISOPE 1995. International Society of Offshore and Polar Engineers. 1995. p. 264-270. (Proceedings of the International Offshore and Polar Engineering Conference).