An inverse problem of coupled thermoelasticity in predicting heat flux and thermal stresses by strain measurement

Yu-Ching Yang; Un-Chia Chen; Win-Jin Chang

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An inverse problem of coupled thermoelasticity in predicting heat flux and thermal stresses by strain measurement

机译：通过应变测量预测热通量和热应力时耦合热弹性的反问题

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摘要

This article presents a technique to solve the inverse boundary value problem of coupled thermoelasticity in an infinitely long annular cylinder. If we known the strain history at any point of the cylinder, the boundary time-varying heat flux can be computed. Sub- sequently, the distributions of temperature and thermal stresses in the cylinder at various times can be determined. The surface heat flux is determined by minimizing the sum of squares of the deviation between the calculated and measured strains in the cylinder.

机译：本文提出了一种解决无限长环形圆柱体中耦合热弹性反边值问题的技术。如果我们知道圆柱体任何一点的应变历史，则可以计算边界时变热通量。随后，可以确定气缸中不同时间的温度和热应力分布。通过最小化圆柱体中计算出的应变与测量出的应变之间的偏差的平方和来确定表面热通量。

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来源
《Journal of thermal stresses》 |2002年第3期|p.265-281|共17页
作者
Yu-Ching Yang; Un-Chia Chen; Win-Jin Chang;
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作者单位

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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
中图分类热力工程、热机;
关键词
annular cylinder; coupled thermoelasticity; inverse problem; strain measurement;

机译：环形圆柱体耦合热弹性反问题应变测量;

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An inverse problem of coupled thermoelasticity in predicting heat flux and thermal stresses by strain measurement

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