本文選題：小衛(wèi)星 + 平面可展開結(jié)構(gòu)��； 參考：《浙江大學(xué)》2015年碩士論文

【摘要】：小衛(wèi)星由于其重量輕、成本低、研制周期短等優(yōu)點(diǎn)受到越來越多的研究單位的重視,特別是在高校范圍內(nèi)掀起一陣小衛(wèi)星研究的熱潮。但目前的小衛(wèi)星上很少搭載工作平臺,使小衛(wèi)星功能受限。為了拓寬小衛(wèi)星的應(yīng)用領(lǐng)域,迫切需要一種較大的、能夠安裝在小衛(wèi)星上的平臺結(jié)構(gòu),能夠安裝各種有效載荷。用可展開結(jié)構(gòu)作為搭載平臺,能使該平臺在發(fā)射階段占用空間少、使用時(shí)具有較大的空間,適合在小衛(wèi)星上使用。 論文首先根據(jù)實(shí)際的使用功能需求,提出了一種適合于搭載在小衛(wèi)星上的展開結(jié)構(gòu)平臺設(shè)計(jì)方案,并分別論述了該方案各分系統(tǒng)的方案設(shè)計(jì),從而滿足所有的使用需求。 采用拉索替代分析法對展開狀態(tài)進(jìn)行了模態(tài)分析,并與地面測試試驗(yàn)作對比,提出了提高剛度的建議供設(shè)計(jì)參考。 詳細(xì)介紹了用ADAMS軟件對該平面展開結(jié)構(gòu)的展開過程進(jìn)行了仿真,并和地面測試實(shí)驗(yàn)結(jié)果進(jìn)行了對比；最后分析了展開結(jié)構(gòu)與衛(wèi)星連成整體后在太空中的展開過程,并給出該過程中的動力學(xué)參數(shù)變化趨勢,有助于改善結(jié)構(gòu)設(shè)計(jì)。 基于非接觸攝影測量法,推導(dǎo)了以桿件與參考平面的傾斜角為表征量的平面度計(jì)算公式并利用無接觸攝影測量系統(tǒng)進(jìn)行了平面度測量；分析了三種不同的重力消除方法對平面度測量的影響,對比了各自的優(yōu)缺點(diǎn)；最后提出了一些保證平面度的措施。這些對平面可展開結(jié)構(gòu)的設(shè)計(jì)有很好的指導(dǎo)作用。 最后,對收攏狀態(tài)的模型進(jìn)行了整星基頻掃描試驗(yàn)、低頻正弦振動試驗(yàn)和隨機(jī)振動,驗(yàn)證了結(jié)構(gòu)的安全性。
[Abstract]:Because of its advantages of light weight, low cost and short research period, small satellites have been paid more and more attention by more and more research units, especially in colleges and universities. But at present the small satellite rarely carries the working platform, which limits the function of the small satellite. In order to broaden the application field of small satellites, it is urgent to have a large platform structure which can be installed on small satellites and to install various payloads. Using the deployable structure as the platform can make the platform occupy less space in the launch phase and have a large space when used, so it is suitable for use on small satellites. Firstly, according to the actual functional requirements, a design scheme of the unfolded structure platform is proposed, which is suitable for carrying on the small satellite, and the scheme design of each subsystem of the scheme is discussed respectively, so as to meet the needs of all the applications. The modal analysis of the unfolding state is carried out by using the cable substitution analysis method, and compared with the test results on the ground, some suggestions for improving the stiffness are put forward for the design reference. This paper introduces in detail the simulation of the development process of the plane unfolded structure by using ADAMS software, and compares with the experimental results of the ground test, and finally analyzes the unfolding process in space after the unfolded structure and the satellite are connected as a whole. The change trend of dynamic parameters in the process is given, which is helpful to improve the structural design. Based on the contactless photogrammetry, the calculation formula of flatness based on the tilt angle between the bar and the reference plane is derived, and the flatness measurement is carried out by using the contactless photogrammetry system. This paper analyzes the influence of three different gravity elimination methods on flatness measurement, compares their advantages and disadvantages, and finally puts forward some measures to ensure flatness. These can guide the design of planar deployable structures. Finally, the whole satellite fundamental frequency scanning test, low frequency sinusoidal vibration test and random vibration are carried out to verify the safety of the structure.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：V423;V416

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 韓冰;盛業(yè)華;張卡;;基于多像對的近景攝影測量相機(jī)對標(biāo)定[J];測繪科學(xué);2007年06期

2 黃志澄;;美國“太空快速響應(yīng)”計(jì)劃[J];國際太空;2006年10期

3 高云國;現(xiàn)代小衛(wèi)星及其相關(guān)技術(shù)[J];光學(xué)精密工程;1999年05期

4 趙煒渝;白保存;金仲和;;皮納衛(wèi)星應(yīng)用與特點(diǎn)分析[J];國際太空;2013年08期

5 林來興;;分布式小衛(wèi)星系統(tǒng)的技術(shù)發(fā)展與應(yīng)用前景[J];航天器工程;2010年01期

6 張一同;牟德君;;空間多閉環(huán)機(jī)構(gòu)自由度計(jì)算的新概念和新理論[J];中國科學(xué):技術(shù)科學(xué);2010年10期

7 徐彥;關(guān)富玲;管瑜;;充氣可展天線精度分析和形面調(diào)整[J];空間科學(xué)學(xué)報(bào);2006年04期

8 牛洪勤;王珂;任維佳;;動力學(xué)仿真中多余約束問題的分析與處理[J];科學(xué)技術(shù)與工程;2011年23期

9 楊敏;孫洋;鮑凱;;小衛(wèi)星及衛(wèi)星組網(wǎng)的戰(zhàn)術(shù)應(yīng)用研究[J];艦船電子工程;2014年09期

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