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时变热辐射环境下高温合金蜂窝板三维热变形测量

潘兵 江天云 吴大方

潘兵, 江天云, 吴大方等 . 时变热辐射环境下高温合金蜂窝板三维热变形测量[J]. 北京航空航天大学学报, 2015, 41(6): 969-975. doi: 10.13700/j.bh.1001-5965.2014.0391
引用本文: 潘兵, 江天云, 吴大方等 . 时变热辐射环境下高温合金蜂窝板三维热变形测量[J]. 北京航空航天大学学报, 2015, 41(6): 969-975. doi: 10.13700/j.bh.1001-5965.2014.0391
PAN Bing, JIANG Tianyun, WU Dafanget al. 3D thermal deformation measurement of superalloy honeycomb panels in time-varying thermal radiation environment[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(6): 969-975. doi: 10.13700/j.bh.1001-5965.2014.0391(in Chinese)
Citation: PAN Bing, JIANG Tianyun, WU Dafanget al. 3D thermal deformation measurement of superalloy honeycomb panels in time-varying thermal radiation environment[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(6): 969-975. doi: 10.13700/j.bh.1001-5965.2014.0391(in Chinese)

时变热辐射环境下高温合金蜂窝板三维热变形测量

doi: 10.13700/j.bh.1001-5965.2014.0391
基金项目: 国家自然科学基金(11272032,91216301,11322220,11427802);中央高校基本科研业务费专项资金(YWF-14-HKXY-001)
详细信息
    通讯作者:

    潘兵(1978—),男,安徽无为人,教授,panb@buaa.edu.cn,主要研究方向为实验固体力学.

  • 中图分类号: V45;O341

3D thermal deformation measurement of superalloy honeycomb panels in time-varying thermal radiation environment

  • 摘要: 轻质、高强和隔热性能优良的蜂窝合金板结构已广泛用于航空航天领域,其在模拟瞬态气动热环境下的热变形是高速飞行器热防护结构设计的重要参数之一.首先,用自行研制的红外辐射瞬态气动热实验模拟系统模拟与其服役环境类似的时变热辐射环境,用新型"主动成像"三维数字图像相关(3D-DIC)测量方法对高温合金蜂窝板结构试件在时变热辐射环境下不同时刻的三维热变形进行了测量.其次,为保证三维数字图像相关测量方法能有效实施,提出一种制作稳定的大面积高温散斑新方法,该方法制作的高温散斑能在整个实验过程中保持稳定,可作为高温变形的有效载体.最后,用Hoff等效刚度理论计算高温合金蜂窝板在稳态时的最大翘曲位移.研究结果表明:210 mm×210 mm的高温合金蜂窝板在单侧面辐射加热条件下其面内变形为均匀热变形,而离面变形为轴对称的翘曲变形,在900℃时其最大离面翘曲位移约为1.6 mm;Hoff等效刚度理论计算结果与实验结果相吻合.

     

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出版历程
  • 收稿日期:  2014-07-01
  • 刊出日期:  2015-06-20

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