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研究生:蔡逸峰
研究生(外文):TSAI,YI-FENG
論文名稱:新型戰鬥直升機隊之發動機性能診斷與保修策略研究
論文名稱(外文):Performance diagnosis and maintenance policy for the engine of a new fleet of attack helicopter
指導教授:夏筱明洪健君
學位類別:碩士
校院名稱:國防大學中正理工學院
系所名稱:兵器系統工程研究所
學門:軍警國防安全學門
學類:軍事學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:中文
論文頁數:131
中文關鍵詞:攻擊直升機T700-GE-701C渦軸式發動機設計點偏離設計點性能模擬模糊邏輯
外文關鍵詞:Attack helicopterTurboshaft EngineDesign pointOff-Design PointPerformance SimulationFuzzy Logic
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由於其在戰場火力支援上的機動性,具備先進航電與強大馬力的新型戰鬥直升機向來即是世界各國戰備整備的重點項目。故如何建立一個高效能的維修體系(Maintenance and Overhaul System, MOS)以確保新機隊的高妥善率,已成為相當重要的議題,尤其是發動機狀態監控與性能診斷技術能量的建置。因此本論文乃以「新型戰鬥直升機隊之發動機性能診斷與保修策略研究」為題,並將重點置於發動機之設計點性能測試,特別是當其四個主要監控儀錶:NG、T45、NP、Tq之指針出現不同幅度的晃動時,發動機健康狀態(Health State)的評估,期能作為調整保修策略的參考及發展動態MOS的理論基礎。在內容上,本論文首先對典型攻擊直升機及其保修實務作一緒論探討,其次為典型渦軸式發動機構造模組之操作特徵分析,再則是以T700之401與701C兩型發動機為例的穩態運轉性能模擬,最後則為發動機設計點性能狀態的評估與保修策略的研討。至於在研究成果方面則包括:(1)完成701C渦軸發動機之設計點數據探勘,(2)701C穩態平衡運轉性能數據庫的建置,(3)701C馬力輸出與狀態監控儀錶之間關係的量化,(4)701C設計點性能狀態之Fuzzy邏輯分析架構的建立。由於本論文研究係以理論探討為主,故在應用Fuzzy邏輯分析發動機系統模擬結果時,雖已將個人從事保修工作的實務經驗與技令規範,納入Fuzzy推論的規則訂定上,然而在後續研究上,則可從實機實測數據的驗證、操作環境控制變因的充實、模糊推論規則與權重的相應調整等面向進行,俾使在保修策略擬定上更臻實用。
Due to its mobility in battlefield ground fire support, new attack helicopter with advanced avionics and large power has long been the favor to the worldwide national defense needs. In the mean time, how to set up an efficient maintenance and overhaul system (MOS) then becomes an urgent issue, especially the capacity of engine health monitoring and performance diagnosis, which plays an important role in keeping the fleet in a high readiness state. Accordingly, this thesis is dedicated to a theoretical study of the performance diagnosis and maintenance policy for the engine of a new fleet of attack helicopters. Focus thus is placed on how to assess the engine health state when tested at its design condition, but with a certain degree of needle flutter shown on the engine indicators: NG, T45, NP, and Tq. The purpose is to provide a basis for engine maintenance reference, as well as for the development of a dynamic MOS. In contents, the thesis begins with a literature study of typical attack helicopters and an introduction of the idea of the present study; followed is a general characteristics analysis of the components of a turboshaft engine; then is the engine performance simulation of the 401 and 701C of the T700 series; the last part is a Fuzzy Logic Analysis framework for assessing the health state of a given 701C tested at its design point condition. Major results thus obtained include (1) the design point of the 701C, (2) the equilibrium running data banks of the 401 and 701C, (3) identification of the quantitative relations between the engine power and its major indicators, and (4) the setup of the above mentioned FLA framework. Although in setting the Fuzzy Logic Rules for the framework, the weighting factors based on maintenance practices and technical orders are already included; it still would like to suggest that real engine tests data, the environmental effects consideration, and the FLA rule setting method are welcome and greatly encouraged as further study topics to make it more practical.
誌謝ii
摘要iii
ABSTRACTiv
目錄v
表目錄viii
圖目錄ix
符號說明xii
1.緒論1
1.1直升機於現代化戰場的關鍵角色1
1.2典型戰鬥直升機之系統架構與推進動力6
1.2.1系統構成8
1.2.2動力源頭:發動機10
1.3提升妥善率與精進保修之議題緣起13
1.4本論文研究之主題構思與規劃16
1.4.1探討主題與範圍18
1.4.2工作規劃與方法19
1.5論文架構20
2.典型戰鬥直升機發動機原理分析與狀態監控之探討23
2.1發動機系統概要-以T700-GE-701C渦軸發動機為例23
2.2氣體產生器之主要模組原理分析26
2.2.1壓縮段工作氣流之熱氣動力分析26
2.2.2燃室段工作氣流之熱氣動力分析29
2.2.3氣渦輪工作氣流之熱氣動力分析30
2.3動力及傳動系之主要模組原理分析33
2.4發動機運轉狀態之儀錶監控37
3.以系統模擬方法建置發動機操作性能之數據資料庫38
3.1發動機基本資料之蒐整與辨識39
3.2發動機設計點參數探勘與模擬43
3.3偏離設計點性能模擬與比較49
3.3.1馬力輸出模擬結果之探討50
3.3.2比燃耗率模擬結果之探討54
3.3.3模擬結果與發動機儀錶指數間之關連性探討58
3.4發動機操作循環之熱氣動力模擬59
3.4.1設計點性能計算模型之求解算則59
3.4.2典型渦軸發動機循環圖62
3.5發動機壓縮器性能圖概要64
4.應用模糊邏輯辨識發動機狀態妥適度之探討66
4.1狀況想定與概要67
4.2模糊(Fuzzy)邏輯分析概要72
4.3模糊邏輯分析系統建構74
4.3.1定義輸出及輸入變數74
4.3.2確立模糊集合決定模糊化策略74
4.3.3定義語言變數與歸屬函數設定75
4.3.4模糊規則與模糊規則庫建立76
4.3.5模糊推論工廠建立與解析78
4.4發動機實例計算與分析81
4.5發動機儀錶指示對應馬力百分數與性能妥適度探討87
4.6保修策略芻議94
5.結論97
5.1主要成果說明97
5.2後續應用展望98
參考文獻100
附錄A使用Matlab軟體內Fuzzy Logic toolbox操作步驟104
附錄B圖4.14與圖4.15所使用之修訂後模糊規則117
自傳119
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