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薛云嘉,贾韬,王锐桐,邢海民,刘家臣.用于耐温动态热密封组件的编织弹簧弹性性能分析及服役参数优选[J].稀有金属材料与工程(英文),2020,49(2):494~499.[Xue Yunjia,Jia tao,Wang Ruitong,Xing Haimin and Liu Jiachen.Research on elastic properties of braided spring used in high temperature dynamic thermal barrier seals and service parameter optimization[J].Rare Metal Materials and Engineering,2020,49(2):494~499.]
Research on elastic properties of braided spring used in high temperature dynamic thermal barrier seals and service parameter optimization
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Received:March 21, 2019  Revised:May 09, 2019
DOI:
Key words: hypersonic aircraft  dynamic thermal barrier seals  braided spring  elastic properties
Foundation item:国家自然科学基金资助(项目号51772203)
Author NameAffiliation
Xue Yunjia,Jia tao,Wang Ruitong,Xing Haimin and Liu Jiachen  
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Abstract:
      In this paper, the effects of the compression, assembly and heat exposure temperature on the elastic properties of the braided spring using as the elastic support of thermal barrier seals were investigated systematically, and the reason for elastic failure of the braided spring on high temperature was also discussed. The results show that the oxidation of alloy is the main reason for reduced resiliency of braided spring on high temperature, and the resiliency of braided spring is more than 95% when the compression is less than 50% below 800℃, which indating that the as-prepared braided spring may have broad application prospects in aerospace thermal barrier.