發(fā)布時(shí)間：2018-05-04 23:15

  本文選題：搜尋機(jī)制 + 搜尋區(qū)域確定��； 參考：《中國民用航空飛行學(xué)院》2015年碩士論文

【摘要】：民用航空器緊急情況(情況不明、告警和遇險(xiǎn))的出現(xiàn)會(huì)威脅到人民生命財(cái)產(chǎn)的安全,并產(chǎn)生嚴(yán)重的經(jīng)濟(jì)、政治負(fù)面影響。雖然目前隨著航空器制造技術(shù)和新航行技術(shù)的逐步應(yīng)用使得民用航空器的安全技術(shù)得到了較大的改善,但由于人為原因、航空器自身故障、天氣原因,近兩年來民用航空器事故仍頻繁發(fā)生。高效、快速的實(shí)施搜尋并盡快確定民用航空器失事的位置或區(qū)域是提供民用航空器救援的前提,對(duì)于減少人員傷亡和財(cái)產(chǎn)損失具有重要意義。 本文首先從組織層面,在文獻(xiàn)查閱、問卷調(diào)查、實(shí)地調(diào)研的基礎(chǔ)上,完善了目前民用航空器搜尋組織架構(gòu),進(jìn)一步明確了各搜尋單位的職責(zé),提出了不同階段民用航空器搜尋協(xié)調(diào)方案,建立了民用航空器搜尋信息通報(bào)流程,構(gòu)建了符合我國國情的民用航空器搜尋機(jī)制。 為了快速確定遇險(xiǎn)航空器的位置,首先對(duì)失事航空器進(jìn)行空氣動(dòng)力學(xué)分析,計(jì)算得出航空器空中漂移距離,進(jìn)而計(jì)算出航空器可能墜落區(qū)域的半徑,然后分已知航空器迫降大概位置和未知航空器失事情況分別討論,從而建立航空器失事后在地面可能墜落區(qū)域的預(yù)測(cè)模型。 在確定了搜尋區(qū)域以后,本文利用最優(yōu)搜尋理論建立了民用航空器最優(yōu)搜尋的數(shù)學(xué)模型,并利用拉格朗日數(shù)乘法對(duì)該模型進(jìn)行求解,從而實(shí)現(xiàn)了對(duì)有限資源的最優(yōu)分配,通過算例分析,驗(yàn)證了方法比傳統(tǒng)方法的優(yōu)越性。 最后基于以上構(gòu)建的搜尋區(qū)域預(yù)測(cè)模型和最優(yōu)搜尋模型,在Windows7操作系統(tǒng)上,運(yùn)用面向?qū)ο蟮腃#編程語言和VS2010集成開發(fā)平臺(tái)開發(fā)實(shí)現(xiàn)了民用航空器搜尋決策輔助系統(tǒng)的各個(gè)功能模塊,通過對(duì)各模塊輸入計(jì)算參數(shù),得到了搜尋區(qū)域關(guān)鍵點(diǎn)的經(jīng)緯度坐標(biāo),并在Google Earth進(jìn)行直觀顯示,結(jié)果表明該軟件計(jì)算速度快,通過與前面算例進(jìn)行對(duì)比分析驗(yàn)證了模型構(gòu)建的準(zhǔn)確性,達(dá)到了軟件設(shè)計(jì)的目的,為民用航空器的搜尋工作提供了技術(shù)支持和參考。
[Abstract]:The emergence of civil aircraft emergencies (unknown, alarm and distress) will threaten the safety of people's lives and property, and have serious economic and political negative effects. Although at present, with the gradual application of aircraft manufacturing technology and new navigation technology, the safety technology of civil aircraft has been greatly improved, but due to man-made reasons, aircraft own failures, weather reasons, Civil aircraft accidents still occur frequently in the past two years. Efficient and rapid search and determination of the location or area of civil aircraft crash is the premise of providing civil aircraft rescue. It is of great significance to reduce casualties and property losses. First of all, on the basis of literature review, questionnaire survey and field investigation, this paper improves the current civil aircraft search organization structure and further clarifies the duties and responsibilities of the various search units. In this paper, the coordination scheme of civil aircraft search in different stages is put forward, and the flow chart of civil aircraft search information communication is established, and the civil aircraft search mechanism according to the situation of our country is constructed. In order to quickly determine the position of the aircraft in distress, first of all, the aerodynamics analysis of the crashed aircraft is carried out, and the drift distance of the aircraft in the air is calculated, and then the radius of the area in which the aircraft may fall is calculated. Then the general position of the known forced landing of the aircraft and the unknown circumstances of the aircraft crash are discussed respectively, and the prediction model of the possible landing area after the aircraft crash is established. After the search area is determined, the mathematical model of the optimal search for civil aircraft is established by using the optimal search theory, and the Lagrange number multiplication is used to solve the model, thus the optimal allocation of finite resources is realized. An example shows that the method is superior to the traditional one. Finally, based on the search region prediction model and the optimal search model constructed above, on the Windows7 operating system, Using the object-oriented C # programming language and VS2010 integrated development platform, each function module of the civil aircraft search and decision support system is developed. The longitude and latitude coordinates of the key points in the search area are obtained by inputting the calculation parameters to each module. The result of visual display in Google Earth shows that the calculation speed of the software is fast. The accuracy of the model is verified by comparing with the previous examples, and the purpose of the software design is achieved. It provides technical support and reference for the search of civil aircraft.
【學(xué)位授予單位】：中國民用航空飛行學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：V328

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本文編號(hào)：1845106