孙明霞,桓明姣,刘超,梁春华,潘若痴,蔚夺魁.基于内容统计分析的数字孪生定义研究[J].航空发动机,2022,48(5):45-57
基于内容统计分析的数字孪生定义研究
The Investigation of Digital Twin Definition Based on Text Statistical Analysis
  
DOI:
中文关键词:  数字孪生  数字孪生定义  内容分析  文献计量  统计分析
英文关键词:digital twin  digital twin definition  text analysis  bibliometrics  statistical analysis
基金项目:航空动力基础研究项目资助
作者单位E-mail
孙明霞,桓明姣,刘超,梁春华,潘若痴,蔚夺魁 中国航发沈阳发动机研究所沈阳110015 butterflysmx@sina.com 
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中文摘要:
      美国国防部最早提出利用数字孪生技术,用于航空航天飞行器的健康维护与保障。数字孪生可以达到缩短周期与降低 成本的目的,作为航空发动机辅助研制技术将发挥越来越重要的作用。为了从第一性原理出发更好地认识与应用数字孪生技术, 需要对数字孪生进行比较全面和相对准确的定义。以互联网搜索引擎、EI数据库、中国知网、万方、重庆维普等数据资源为采样 源,采集来自科技文献、科技报告、企业白皮书、标准等的64种典型的数字孪生定义。通过对文献外部特征与内容特征的研究,得 到数字孪生定义共性要素。通过对定义要素的词频统计分析,确定数字孪生定义的核心要素和补充要素,并构建了基于共性要素 的通用数字孪生定义模型;通过对数字孪生定义要素内容聚类分析,得到数字孪生定义要素的具体表达。提出了针对数字孪生的 核心要素的宏观定义和针对全部要素的微观定义。
英文摘要:
      The US Department of Defense first proposed to use digital twin technology for the health monitoring, maintenance and sup? port of aerospace vehicles. digital twin can shorten the cycle and reduce the cost, and it will play an increasingly important role as an assis? tive technology for aeroengine development. In order to better understand and apply digital twin technology from first principles,it was nec? essary to define digital twin comprehensively and accurately. Using internet search engines, EI database, CNKI, Wanfang, Chongqing Weipu and other data resources as sampling sources, 64 typical digital twin definitions from scientific articles, reports, enterprise white pa? pers, and standards were collected. The common elements of the definition of digital twin were obtained by studying the external character? istics and text characteristics of the literatures. The core elements and supplementary elements of digital twin definition were determined through statistical analysis of the word frequency of the definition elements, and a universal model of digital twin definition was constructed based on common elements. The specific expression of digital twin was obtained through content clustering analysis of digital twin defini? tion element. The macro definition of the core element and the micro definition of the whole element were presented.
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