Abstract
The inverse heat conduction problem (IHCP) is commonly referred as the problem of determining unknown thermal boundary conditions from remote temperature measurements. However other types of measurements may be used provided their sensitivity of the thermal field is large enough. This work focuses on the utilisation of thermal stress measurements for solving the inverse heat conduction problem. The objective being to compare the quality of the information given by thermal and by strain sensors. The case of a cylindrical tube is considered. The internal boundary condition is unknown and must be estimated from sensors placed at the outer surface only. The method used for solving the IHCP from stress measurements is developed first. The method is then applied to experimental measurements. The data are examined in details to distinguish the noise from the true signal. Results given by thermal or/and strain sensors are compared. The comparison of the estimated and measured internal temperature show that, for the case of interest, much better estimates can be obtained with strain gages than with thermocouples. (authors). 8 figs., 7 refs.
Citation Formats
Chau, T H, Blanc, G, and Raynaud, M.
Solution of an inverse heat conduction problem using strain gage measurements; Reconstitution du champ thermique interne a partir des mesures de deformation.
France: N. p.,
1993.
Web.
Chau, T H, Blanc, G, & Raynaud, M.
Solution of an inverse heat conduction problem using strain gage measurements; Reconstitution du champ thermique interne a partir des mesures de deformation.
France.
Chau, T H, Blanc, G, and Raynaud, M.
1993.
"Solution of an inverse heat conduction problem using strain gage measurements; Reconstitution du champ thermique interne a partir des mesures de deformation."
France.
@misc{etde_10138746,
title = {Solution of an inverse heat conduction problem using strain gage measurements; Reconstitution du champ thermique interne a partir des mesures de deformation}
author = {Chau, T H, Blanc, G, and Raynaud, M}
abstractNote = {The inverse heat conduction problem (IHCP) is commonly referred as the problem of determining unknown thermal boundary conditions from remote temperature measurements. However other types of measurements may be used provided their sensitivity of the thermal field is large enough. This work focuses on the utilisation of thermal stress measurements for solving the inverse heat conduction problem. The objective being to compare the quality of the information given by thermal and by strain sensors. The case of a cylindrical tube is considered. The internal boundary condition is unknown and must be estimated from sensors placed at the outer surface only. The method used for solving the IHCP from stress measurements is developed first. The method is then applied to experimental measurements. The data are examined in details to distinguish the noise from the true signal. Results given by thermal or/and strain sensors are compared. The comparison of the estimated and measured internal temperature show that, for the case of interest, much better estimates can be obtained with strain gages than with thermocouples. (authors). 8 figs., 7 refs.}
place = {France}
year = {1993}
month = {Aug}
}
title = {Solution of an inverse heat conduction problem using strain gage measurements; Reconstitution du champ thermique interne a partir des mesures de deformation}
author = {Chau, T H, Blanc, G, and Raynaud, M}
abstractNote = {The inverse heat conduction problem (IHCP) is commonly referred as the problem of determining unknown thermal boundary conditions from remote temperature measurements. However other types of measurements may be used provided their sensitivity of the thermal field is large enough. This work focuses on the utilisation of thermal stress measurements for solving the inverse heat conduction problem. The objective being to compare the quality of the information given by thermal and by strain sensors. The case of a cylindrical tube is considered. The internal boundary condition is unknown and must be estimated from sensors placed at the outer surface only. The method used for solving the IHCP from stress measurements is developed first. The method is then applied to experimental measurements. The data are examined in details to distinguish the noise from the true signal. Results given by thermal or/and strain sensors are compared. The comparison of the estimated and measured internal temperature show that, for the case of interest, much better estimates can be obtained with strain gages than with thermocouples. (authors). 8 figs., 7 refs.}
place = {France}
year = {1993}
month = {Aug}
}