Optimization design of built-up thermal protection system based on   validation of corrugated core homogenization

doi:10.1016/j.applthermaleng.2016.12.137

CORC > 北京大学 > 工学院

	Optimization design of built-up thermal protection system based on validation of corrugated core homogenization
	Ma, Yongbin ; Xu, Baosheng ; Chen, Mingji ; He, Rujie ; Wen, Weibin ; Cheng, Tianbao ; Fang, Daining
刊名	APPLIED THERMAL ENGINEERING
	2017
关键词	Thermal protection system C/SiC composites Corrugated core sandwich panel Homogenization Transient heat conduction TRANSIENT HEAT-CONDUCTION SANDWICH STRUCTURE LATTICE CORE INSULATION CONVECTION NANOFLUID BEHAVIOR
DOI	10.1016/j.applthermaleng.2016.12.137
英文摘要	An optimization procedure aiming to design a built-up thermal protection system is presented in this paper. The built-up thermal protection system comprises of classical Integrated Thermal Protection System (ITPS) and additional layer of insulation material which is attached to the cold surface of ITPS. In this paper, corrugated core sandwich panel which is fabricated using C/SiC composite material is considered as an ITPS when the core void is filled with insulation material. It is found in this paper that for the built-up TPS the temperature calculated based on corrugated core homogenization shows significant deviation from the exact solution. The significant advantage of the built-up TPS in insulation ability compared to the traditional ITPS is validated. An interesting phenomenon is also found that with the increasing insulation ability of the attached insulation, the temperature on the cold surface of the sandwich panel would converge to a stable value. Based on this finding, a two-step design procedure with high accuracy and high efficiency is exploited for the built-up thermal protection system. At the first step, the stable value of temperature on the cold surface of the sandwich panel is obtained utilizing the finite element technique, and is used as the boundary condition needed in the second step. At the second step, the two-dimensional transient heat transfer problem is transformed into a one-dimensional problem based on which the optimal thicknesses of the multiple insulation layers are obtained utilizing the finite difference formulation. Numerical results show that the thickness and the areal density of the built-up TPS can be significantly reduced by considering multilayer design. (C) 2016 Elsevier Ltd. All rights reserved.; National Science Foundation of China [11602021, 11227801, 11602125]; China Postdoctoral Science Foundation [2016M591085, 2016M591168]; National Basic Research Program of China [G2010CB832701]; Foundation for Innovative Research Groups of the National Natural Science Foundation of China [11521202]; SCI(E); ARTICLE; 491-500; 115
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474489]
专题	工学院
推荐引用方式 GB/T 7714	Ma, Yongbin,Xu, Baosheng,Chen, Mingji,et al. Optimization design of built-up thermal protection system based on validation of corrugated core homogenization[J]. APPLIED THERMAL ENGINEERING,2017.
APA	Ma, Yongbin.,Xu, Baosheng.,Chen, Mingji.,He, Rujie.,Wen, Weibin.,...&Fang, Daining.(2017).Optimization design of built-up thermal protection system based on validation of corrugated core homogenization.APPLIED THERMAL ENGINEERING.
MLA	Ma, Yongbin,et al."Optimization design of built-up thermal protection system based on validation of corrugated core homogenization".APPLIED THERMAL ENGINEERING (2017).