首页> 外文期刊>International Journal of Heat and Mass Transfer >Inverse hyperbolic thermoelastic analysis of a functionally graded hollow circular cylinder in estimating surface heat flux and thermal stresses
【24h】

Inverse hyperbolic thermoelastic analysis of a functionally graded hollow circular cylinder in estimating surface heat flux and thermal stresses

机译:功能梯度空心圆柱的反双曲热弹性分析,以估算表面热通量和热应力

获取原文
获取原文并翻译 | 示例
           

摘要

In this study, an inverse algorithm based on the conjugate gradient method and the discrepancy principle is applied to solve the inverse hyperbolic heat conduction problem in estimating the unknown time-dependent inner-wall heat flux of a hollow cylinder from the knowledge of temperature measurements taken within the medium. The inverse solutions have been justified through the numerical experiments in two specific cases to determine the unknown heat flux. Temperature data obtained from the direct problem are used to simulate the temperature measurements. The influence of measurement errors upon the precision of the estimated results is also investigated. Results show that excellent estimation on the time-dependent heat flux can be obtained for the test cases considered in this study. Once heat flux variation is accurately estimated, the evolution of temperature, displacement, and stress distributions can be calculated in great precision.
机译:在这项研究中,基于共轭梯度法和差异原理的逆算法被用于解决反双曲热传导问题,从而根据已知的温度测量值来估计中空圆柱体的未知时变内壁热通量。在媒介之内。通过在两种特定情况下的数值实验确定了逆解是合理的,以确定未知的热通量。从直接问题获得的温度数据用于模拟温度测量。还研究了测量误差对估计结果精度的影响。结果表明,对于本研究中考虑的测试案例,可以很好地估计随时间变化的热通量。一旦准确估计了热通量变化,就可以高精度计算温度,位移和应力分布的变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号