【摘要】：隨著雷達技術(shù)的快速發(fā)展和戰(zhàn)場環(huán)境日趨復(fù)雜,對雷達結(jié)構(gòu)設(shè)計提出了越來越高的要求。良好的機動性是保障設(shè)備戰(zhàn)場生存能力的重要特性之一;雷達結(jié)構(gòu)靜力學(xué)、動力學(xué)特性不但影響雷達功能的實現(xiàn),也會直接影響雷達機械及電氣性能。本文從系統(tǒng)設(shè)計的角度出發(fā),對雷達總體結(jié)構(gòu)設(shè)計、雷達機動性、重要分系統(tǒng)進行設(shè)計研究,并針對風(fēng)載荷對雷達的影響進行了相應(yīng)的計算和分析。針對本系統(tǒng)設(shè)備量大、結(jié)構(gòu)復(fù)雜的特點,本文以系統(tǒng)觀念進行結(jié)構(gòu)總體設(shè)計,根據(jù)總體技術(shù)要求和設(shè)計規(guī)范,將系統(tǒng)功能和性能指標逐層分解到各分系統(tǒng)、分機,并制定相應(yīng)的設(shè)計規(guī)范指導(dǎo)分系統(tǒng)、分機的設(shè)計,最后將各單機整合成一個整體,做到整機功能協(xié)調(diào)、布局合理,風(fēng)格統(tǒng)一;同時對系統(tǒng)安全性、可靠性與可維修性、環(huán)境適應(yīng)性、人機工程等進行論述和設(shè)計。論文針對天線結(jié)構(gòu)、微波箱散熱、天線升降機構(gòu)等重要分系統(tǒng)進行了結(jié)構(gòu)方面設(shè)計和論述。介紹了天線系統(tǒng)結(jié)構(gòu)組成,對微波箱減重、天線剛強度進行了計算和分析;對天線微波箱進行了設(shè)計和分析,并分別對微波箱內(nèi)的發(fā)射組件和電源模塊進行了散熱設(shè)計和分析;介紹了天線升降機構(gòu)結(jié)構(gòu)形式、組成,并對升降機構(gòu)進行了力學(xué)計算和分析,對安全性和可靠性設(shè)計進行了論述。論文還對升降平臺、天線微波箱、天線座殼體等進行了力學(xué)計算與分析。通過建立有限元模型,對由調(diào)平腿、車架、升降機構(gòu)、天線座、天線組成的升降平臺進行力學(xué)計算與分析;對系統(tǒng)進行模態(tài)分析,測試其固有頻率,為平臺設(shè)計提供基礎(chǔ)數(shù)據(jù)。設(shè)定典型工況對上述結(jié)構(gòu)件總成進行力學(xué)分析,計算不同工況下的最大應(yīng)力與位移,通過計算分析來驗證設(shè)計的有效性和合理性,在此基礎(chǔ)上優(yōu)化結(jié)構(gòu)設(shè)計。對微波箱體、天線座殼體進行剛、強度分析,根據(jù)分析結(jié)果不斷優(yōu)化結(jié)構(gòu),最終使結(jié)構(gòu)設(shè)計滿足總體使用要求。本文以提高雷達自動化水平為重點對雷達機動性進行設(shè)計和論述,通過機、電、液一體化手段實現(xiàn)雷達整車調(diào)平、天線自動升降與翻轉(zhuǎn)、自動鎖定,優(yōu)化展開/撤收流程,提高設(shè)備的機動性。
[Abstract]:With the rapid development of radar technology and the complexity of battlefield environment, more and more demands are put forward for radar structure design. Good maneuverability is one of the important characteristics to ensure the survival of equipment in battlefield. The static and dynamic characteristics of radar structure not only affect the realization of radar function, but also directly affect the mechanical and electrical performance of radar. From the point of view of system design, this paper designs and studies the overall structure design, radar maneuverability and important subsystem of radar, and calculates and analyzes the effect of wind load on radar. In view of the characteristics of large equipment and complex structure, this paper carries out the overall structure design based on the concept of system. According to the overall technical requirements and design specifications, the system function and performance index are decomposed layer by layer into each subsystem and extension. And formulate the corresponding design norms to guide the sub-system, the extension design, and finally the integration of each single machine into a whole, so that the whole machine function coordination, reasonable layout, unified style; At the same time, the system safety, reliability and maintainability, environment adaptability, ergonomics and so on are discussed and designed. In this paper, the structure of antenna structure, microwave box heat dissipation, antenna lifting mechanism and other important sub-systems are designed and discussed. The structure of the antenna system is introduced, the weight loss of the microwave box and the strength of the antenna are calculated and analyzed, the design and analysis of the antenna microwave box are carried out, and the heat dissipation design and analysis of the transmitting module and the power module in the microwave box are carried out respectively. The structure and composition of the antenna lifting mechanism are introduced. The mechanical calculation and analysis of the lifting mechanism are carried out, and the design of safety and reliability is discussed. The mechanical calculation and analysis of lifting platform, antenna microwave box and antenna base shell are also carried out. Through establishing the finite element model, the mechanical calculation and analysis of the lifting platform composed of leveling leg, frame, lifting mechanism, antenna pedestal and antenna are carried out, and the modal analysis of the system is carried out, its natural frequency is tested, and the basic data are provided for the platform design. The mechanical analysis of the structural assembly is carried out under typical working conditions, and the maximum stress and displacement under different working conditions are calculated. The validity and rationality of the design are verified by calculation and analysis, and the structural design is optimized on this basis. The stiffness and strength of microwave box and antenna base shell are analyzed and the structure is optimized according to the results of the analysis. Finally, the structure design can meet the overall requirements. This paper focuses on the design and discussion of radar maneuverability in order to improve the level of radar automation. By means of the integration of machine, electricity and liquid, the radar vehicle can be leveled, the antenna will rise and fall automatically, the antenna will be automatically locked, and the process of developing / withdrawing will be optimized. Improve the mobility of the equipment.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN957

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相關(guān)期刊論文 前1條

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本文編號：2426129