航空发动机复合材料机匣叶片包容性研究

刘璐璐, 宣海军, 张娜

刘璐璐, 宣海军, 张娜. 航空发动机复合材料机匣叶片包容性研究[J]. 工程力学, 2013, 30(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2012.06.S093
引用本文: 刘璐璐, 宣海军, 张娜. 航空发动机复合材料机匣叶片包容性研究[J]. 工程力学, 2013, 30(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2012.06.S093
LIU Lu-lu, XUAN Hai-jun, ZHANG Na. INVESTIGATION ON BLADE CONTAINMENT OF AERO-ENGINE COMPOSITE CASE[J]. Engineering Mechanics, 2013, 30(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2012.06.S093
Citation: LIU Lu-lu, XUAN Hai-jun, ZHANG Na. INVESTIGATION ON BLADE CONTAINMENT OF AERO-ENGINE COMPOSITE CASE[J]. Engineering Mechanics, 2013, 30(增刊): 314-319. DOI: 10.6052/j.issn.1000-4750.2012.06.S093

航空发动机复合材料机匣叶片包容性研究

基金项目: 航空推进技术验证计划资助项目(APTD-11);浙江省自然科学基金项目(Y1090245);航空科学基金项目(20095276009);爆炸科学与技术国家重点实验室开放基金项目(KFJJ10-9M)
详细信息
    作者简介:

    刘璐璐(1988―),女,山东曲阜人,博士生,从事航空发动机复合材料机匣包容性数值仿真方法研究(E-mail:liululu@zju.edu.cn);张娜(1988―),女,山东济南人,博士生,从事高速旋转机械测试技术研究(E-mail:zhangna1002@zju.edu.cn).

    通讯作者:

    宣海军(1977―),男,浙江上虞人,副教授,博士,从事高速旋转机械强度、振动和结构冲击响应研究(E-mail:marine@zju.edu.cn).

INVESTIGATION ON BLADE CONTAINMENT OF AERO-ENGINE COMPOSITE CASE

  • 摘要: 为研究复合材料机匣抵抗飞断叶片的包容能力及其损伤破坏机理,在高速旋转试验台上进行缩比模型试验,并采用显式瞬态动力学软件对复合材料机匣的包容机理进行了分析。通过分析叶片与机匣的撞击、击穿过程,研究了复合材料机匣包容机理;通过分析机匣壁厚对机匣破坏方式与包容能力的影响,获取了机匣壁厚与能量吸收的关系。结果表明:飞断叶片与复合材料机匣的撞击过程包含3次撞击,复合材料机匣在内壁与外壁的破坏方式显著不同;随壁厚增加,叶片发生严重的弯曲变形,且机匣能量吸收呈指数倍增加。
    Abstract: To investigate the impact resistance and damage failure mechanisms of a composite aeroengine case, the subscale containment test was conducted on a high speed spin tester and numerical simulations were carried out using an explicit transient dynamic code. The impact process between the released blade and the composite case was investigated to obtain the containment mechanism of the composite case. The influences of the thickness on the failure mode and containment capacity were analyzed to study the correlation of the case thickness and the energy absorption. Containment process usually involves 3 continuous impacts. The failure modes are significantly different in the inner wall and the outer wall of the composite case. The released blade bends more severe and the energy absorption by the composite case increases exponentially with the increase of case thickness.
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出版历程
  • 收稿日期:  2013-06-30
  • 修回日期:  2013-06-30
  • 刊出日期:  2013-06-24

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