Design on Thermal Protection Structure of C/SiC Lattice Composite Materials

摘要：

　　A new double-layer lattice structure based on C/SiC composite material is described and being investigated as a means to increase the service temperature of thermal protection structure.The design incorporates a C/SiC double-layer sandwich comprising two pyramidal truss cores.The outer layer of the sandwich structure is the thermal protection layer,which can make the heat redistribute.The internal layer is the insulation layer,which can decrease the temperature of the hot components and increase their reliability.The temperature field of C/SiC lattice thermal protection structures with different geometrical parameters was calculated by the finite element software ANSYS.It is found that the thermal behavior of the double-layer lattice thermal structure is affected by the truss geometry,such as truss length and inclination angle.The thermal protection capacity of C/SiC lattice structure is analyzed and compared with the equivalent solid structure.The results indicated that C/SiC lattice thermal protection structure has lower density and better thermal protection property than the traditional thermal protection structures.

关键词： C/SiC Thermal protection structure Temperature field Lattice composite materials

作者: Yu Gao Tao Zeng Dai-ning Fang Shi Yan

作者单位: Department of Engineering Mechanics,Harbin University of Science and Technology,Harbin 150080,P.R.Ch Department of Mechanics and Aerospace Technology,Peking University,100871,Beijing,P.R.China

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 808-811

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）