CAJ | 학술논문

太阳帆自旋展开是一项新的空间技术。它利用自旋离心力展开折叠的太阳帆薄膜，并使其保持展开后的位形，从而可省略额外支撑结构，有效减少结构重量，降低展开能耗。在这项技术进行在轨试验和用于航天任务之前，必须对其进行充分的动力学地面模拟试验。介绍了如何设计和研制太阳帆自旋展开与控制系统，制作了不同的太阳帆模型，分别在常规气压下和真空舱中进行太阳帆自旋展开动力学地面模拟试验。通过多组试验，得到了可完整、稳定展开太阳帆模型的方法。试验时在真空舱底部和侧面布置两台高速相机，拍摄各个时段的展开过程。经过图像处理和分析，得到了第一展开阶段帆面展开长度随时间的变化关系和第二展开阶段的帆面动态响应。通过建立简化的动力学模型并进行分析，解释了第二展开阶段帆面产生较大面内外振动的原因。
태양범자선전개시일항신적공간기술。타이용자선리심력전개절첩적태양범박막，병사기보지전개후적위형，종이가성략액외지탱결구，유효감소결구중량，강저전개능모。재저항기술진행재궤시험화용우항천임무지전，필수대기진행충분적동역학지면모의시험。개소료여하설계화연제태양범자선전개여공제계통，제작료불동적태양범모형，분별재상규기압하화진공창중진행태양범자선전개동역학지면모의시험。통과다조시험，득도료가완정、은정전개태양범모형적방법。시험시재진공창저부화측면포치량태고속상궤，박섭각개시단적전개과정。경과도상처리화분석，득도료제일전개계단범면전개장도수시간적변화관계화제이전개계단적범면동태향응。통과건립간화적동역학모형병진행분석，해석료제이전개계단범면산생교대면내외진동적원인。
The spinning deployment of solar sails is a new space technique,which utilizes the centrifugal force of spinning to de-ploy the sail membranes stowed in a spiral folding status and to sustain the configuration of fully deployed membranes.This technique,hence,has the advantages of light weight and low energy consumption because it does not need any extra supportive structure.Sufficient ground simulation tests for the spinning deployment dynamics and control of a solar sail are significantly important for this technique before it is tested on orbit and applied to any space missions.This paper presents how to design and realize the ground simulation test for spinning deployment dynamics of a solar sail model,including deployment and control devices,as well as several kinds of sail membranes.The paper also presents the ground simulation tests of spinning deploy-ment of a solar sail model either under the normal atmospheric pressure or in a vacuum chamber.Repeated ground simulation tests verify the approach to deploy the sail membranes fully and smoothly.The photos taken by two high-speed cameras,from horizontal and vertically directions respectively,enable one to observe the spinning deployment process and analyze both the length of deployed membranes with respective to time and the dynamic response of membranes in the second deployment stage via digital image processing.A simplified dynamic model is established to explain the sever out-of-plane vibration observed in the second stage of deployment.