The Understanding of Thermomechanical Analysis of a Thermal Protection System

Abstract:

Nowadays, reusable launch vehicle (RLV) has become a research focus of the transportation system between ground and space and the space weapon system. RLV plays an important role in controlling the cost of space transportation and performing the orbital mission. Since RLV would suffer from the aerodynamic heating inevitably during reentry, the thermal protection system (TPS) is designed to prevent too much heat transmitting to the vehicle structure and maintain the vehicle structure below a specified temperature limit. Several studies were performed to develop an understanding of not only the thermal and structural analysis of ceramic tile thermal protection system on the space shuttle but also the controlling factors of TPS. The TPS is subjected to the reentry heating and pressure profile of the Access to Space vehicle, and the transient temperature distribution and the resultant thermal stresses in the system are computed. Comparisons between various studies based on different assumptions were examined. By comparing these results with more realistic ones, the differences are evaluated. Results suggest that the TPS analysis must be based on reasonable and realistic parameters. Thus, engineers have to keep in mind that all parameters should be chosen very carefully to achieve results that close to practical ones.

• Periodical: Advanced Materials Research (Volumes 753-755)
• Pages: 1467-1476
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.753-755.1467
• Online since: August 2013
• Authors: Xiao Bo Peng
• Keywords: Finite Element Method (FEM), Optimization Analysis, Reusable Launch Vehicles (RLV), Thermal Protection System (TPS), Transient Heat Transfer

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