...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Engineering for Gas Turbines and Power >Remaining Life Prediction of Thermal Barrier Coatings Based on Photoluminescence Piezospectroscopy Measurements
【24h】

Remaining Life Prediction of Thermal Barrier Coatings Based on Photoluminescence Piezospectroscopy Measurements

机译：基于光致发光压电光谱测量的热障涂层的剩余寿命预测

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Nondestructive determination of the remaining life of thermal barrier coatings (TBCs) is highly desirable for components removed from service engines. Remaining life predictions for EB-PVD/Pt-Al TBCs cycled at two temperatures (1151℃ and 1121℃) were made based on the thermally grown oxide stresses measured by the photoluminescence piezospectroscopy technique without knowing the test temperature. The predictions were compared using regression methods and neural network methods. It was found that both methods produce accurate life remaining predictions, but the neural network methods were superior. The lowest root-mean-square (rms) error and maximum absolute error for the prediction was 6.1% and 8.2%, respectively. For a data set with a 48.7% rms spallation life variation about the mean, the prediction results obtained are highly encouraging.
机译：对于从服务发动机上拆下的组件，非常需要无损确定隔热涂层（TBC）的剩余寿命。基于在不知道测试温度的情况下通过光致发光压电光谱技术测量的热生长氧化物应力，对在两个温度（1151℃和1121℃）下循环的EB-PVD / Pt-Al TBC的剩余寿命进行了预测。使用回归方法和神经网络方法比较了预测结果。发现这两种方法都可以产生准确的寿命预测，但是神经网络方法优越。预测的最低均方根（rms）误差和最大绝对误差分别为6.1％和8.2％。对于均方根均方根差为48.7％的数据集，获得的预测结果令人鼓舞。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号