典型飞机蒙皮零件工艺特征识别与智能检索方法  

Process feature recognition and intelligent retrieval method for typical aircraft skin part

作　　者：钱文鑫 李强 卢鹄 陈保国 张希磊 柳玉起[1] Qian Wenxin;Li Qiang;Lu Hu;Chen Baoguo;Zhang Xilei;Liu Yuqi(State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China;COMAC Shanghai Aircraft Manufacturing Co.,Ltd.,Shanghai 201324,China)

机构地区：[1]华中科技大学材料成形与模具技术全国重点实验室,湖北武汉430074 [2]中国商飞上海飞机制造有限公司,上海201324

出　　处：《锻压技术》2024年第12期250-256,共7页Forging & Stamping Technology

摘　　要：为解决飞机蒙皮模面设计中存在的过程复杂、依赖设计经验以及工艺知识重用程度低的问题,基于截面线方法提取工艺参数,实现了蒙皮拉伸成形工艺特征的数字化表达。采用最近邻策略,基于插值方法将特征矩阵标准化,并改进传统的TOPSIS算法,引入鲁棒标准化算法,排除了工艺参数极端值的影响,提高了相似度计算的稳定性和可靠性。基于以上研究,开发了一套工艺特征识别与相似度匹配的蒙皮成形工艺快速检索系统,实现了飞机蒙皮工艺零件的快速检索和知识重用。通过企业现场应用测试,系统的工艺搜索准确率达到90.5%,显著提升了蒙皮零件工艺设计的效率与质量。To solve the problems of complex die surface design process for aircraft skin,dependence on design experience and low reuse degree of process knowledge,the process parameters were extracted based on section line method to achieve the digital expression of the aircraft skin forming process feature.Then,through adopting the nearest neighbor strategy,the influences of extreme values of the process parameters were eliminated,and the stability and reliability of similarity calculations were improved by standardizing the feature matrix based on interpolation methods,improving the traditional TOPSIS algorithm and introducing a robust normalization algorithm.Furthermore,based on the above research,a rapid retrieval system for aircraft skin forming process of process feature recognition and similarity matching was developed to achieve fast retrieval and knowledge reuse of aircraft skin process parts.The results of on-site application testing in enterprise show that the process search accuracy of system reaches 90.5%,significantly improving the efficiency and quality of process design for aircraft skin parts.

关 键 词：飞机蒙皮 拉伸成形 知识重用 特征识别 快速检索系统 

分 类 号：V262.32[航空宇航科学与技术—航空宇航制造工程] TP29[自动化与计算机技术—检测技术与自动化装置]