History-based engineering change propagation predicting

被引:4
作者
机构
[1] The Key Laboratory of Contemporary Design and Integrated Manufacturing Technology, Ministry of Edu., Northwestern Polytechnical University
[2] China Aerospace Science and Technology Corporation
来源
Mo, R. (morong@nwpu.edu.cn) | 1600年 / Chinese Society of Astronautics卷 / 34期
关键词
Bayes rules; Data mining; Engineering change propagation; Information theory; Propagation path; Similar parameter;
D O I
10.7527/S1000-6893.2013.0106
中图分类号
学科分类号
摘要
In view of the difficulties of engineering change propagation in aerospace products, a new history-based propagation path predicting method is proposed. Important parameters are obtained using the concepts of entropy and mutual information. Then, a parameter-similarity algorithm is proposed from the aspect of semantics and change-effect. Furthermore, the regulation and method of change propagation predicting are analyzed based on Bayes rules. Finally, an experiment of managing an aerospace turbine disk is performed to validate our method and it shows its validity and merits.
引用
收藏
页码:677 / 685
页数:8
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