【摘要】：維修拆裝是虛擬維修訓練中的重要組成部分,準確模擬維修拆裝過程,對開發(fā)維修訓練設備起著至關重要的作用,完善的虛擬訓練設備對系統(tǒng)性的培訓維修機務人員的拆裝能力有著重要的意義。飛機維修拆裝過程涉及零部件繁雜,拆裝資源種類多,以往的維修拆裝過程模型沒有對維修拆裝知識概念進行統(tǒng)一的定義,忽略了知識的重用與共享,在對模型進行仿真實現的過程中對同一個概念產生一詞多義或多詞同義的情況,造成不同模型組件之間在進行交互操作時容易產生語義異構問題。針對以上問題,本文提出構建基于語義互操作的維修拆裝過程模型,該模型能夠使維修拆裝過程有著統(tǒng)一的語義基礎,避免語義歧義的產生。具體工作如下:首先,以航線維修拆裝過程為研究對象,依據飛機維護手冊(AMM),研究維修拆裝過程,結合語義互操作概念,分析出基于語義互操作建模的關鍵問題:語義形式化和消除語義異構。其次,針對上述關鍵問題,找出合理的解決方案。第一,針對語義形式化問題,選用本體論技術,確定本體研究領域,分析維修拆裝過程知識,構建維修拆裝過程領域本體,使維修拆裝過程中的概念及概念之間關系有明確的定義,實現拆裝知識的共享性與重用性。第二,針對語義異構消除問題,在維修拆裝領域本體的基礎上,結合UML類圖的建模方法,建立基于本體的維修拆裝過程模型,使模型組件之間在相同的語義基礎之上進行交互,從而避免了語義歧義的產生。最后,借助本實驗室開發(fā)的3D仿真平臺,提出本體驅動的仿真框架,并以拆裝甚高頻收發(fā)機為例,對維修拆裝過程模型實例進行仿真驗證。仿真結果證明該模型實現了拆裝知識的共享性與重用性,避免了模型組件交互操作時語義歧義問題的產生。
[Abstract]:Maintenance disassembly and disassembly is an important part of virtual maintenance training. It plays an important role in developing maintenance training equipment by accurately simulating the process of maintenance disassembly and assembly. Perfect virtual training equipment is of great significance for systematic training of maintenance crew's ability of disassembly and assembly. Aircraft maintenance and disassembly process involves complicated parts and many kinds of disassembly and assembly resources. The former maintenance and disassembly process model does not have a unified definition of the concept of maintenance, disassembly and assembly knowledge, and neglects the reuse and sharing of knowledge. In the process of simulation and implementation of the model, a word polysemy or multi-word synonym is produced for the same concept, which leads to the semantic heterogeneity of different model components when they interact with each other. In view of the above problems, this paper proposes a maintenance and disassembly process model based on semantic interoperability, which can make the maintenance and disassembly process have a unified semantic basis and avoid semantic ambiguity. The specific work is as follows: firstly, taking the course of route maintenance and disassembly as the research object, according to the aircraft maintenance manual (AMM), the paper studies the process of maintenance and disassembly, and combines the concept of semantic interoperability. The key problems of semantic interoperability modeling are analyzed: semantic formalization and elimination of semantic heterogeneity. Secondly, in view of the above key problem, find out the reasonable solution. First, aiming at the problem of semantic formalization, we select ontology technology to determine the domain of ontology research, analyze the knowledge of maintenance and disassembly process, and construct the domain ontology of maintenance and disassembly process. The concept and the relationship between the concepts in the process of maintenance and disassembly are clearly defined to realize the sharing and reuse of the knowledge of disassembly and disassembly. Secondly, aiming at the problem of eliminating semantic heterogeneity, the maintenance and disassembly process model based on UML class diagram is established on the basis of maintenance and disassembly domain ontology, which makes the model components interact with each other on the same semantic basis. In order to avoid semantic ambiguity. Finally, with the help of the 3D simulation platform developed by our laboratory, an ontology-driven simulation framework is proposed, and the example of the VHF transceiver is taken as an example to verify the model of the maintenance and disassembly process. The simulation results show that the model realizes the sharing and reusability of disassembly knowledge and avoids the semantic ambiguity in the interactive operation of model components.
【學位授予單位】：中國民航大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：V267;TP391.9

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