红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2014年
z1期
65-71
,共7页
刘荣强%金光%刘兆晶%张静%吴楠
劉榮彊%金光%劉兆晶%張靜%吳楠
류영강%금광%류조정%장정%오남
航空宇航制造工程%可展开机构%多模块%运动学分析%驱动设计
航空宇航製造工程%可展開機構%多模塊%運動學分析%驅動設計
항공우항제조공정%가전개궤구%다모괴%운동학분석%구동설계
aeronautics and astronautics manufacturing engineering%deployable structure%multi-module%kinematics analysis%driving design
由于可折展机构在空间任务中的展开需要,其运动学分析和驱动设计至关重要。根据空间多模块可展开机构中单个模块的周向周期性及多模块连接的非完全周期性特点,首先基于复数法和机构单元的拆分思想进行了单个模块的运动学建模,同时进行了满足曲面拟合条件的多模块展开机构的几何建模,并进行了多模块可展开机构的运动学分析,得到多模块联动过程中运动部件的位置与模块间偏角的关系曲线,随着滑块位移的增大,外层模块与内层模块的偏角增大,最大值为1.22。。基于可展开机构的运动学分析,得到不同驱动方式下滑块和铰链在机构展开过程中的受力变化曲线,进行展开机构的驱动分析及低质量和高可靠性的驱动设计,为展开机构的顺利展开提供保障。
由于可摺展機構在空間任務中的展開需要,其運動學分析和驅動設計至關重要。根據空間多模塊可展開機構中單箇模塊的週嚮週期性及多模塊連接的非完全週期性特點,首先基于複數法和機構單元的拆分思想進行瞭單箇模塊的運動學建模,同時進行瞭滿足麯麵擬閤條件的多模塊展開機構的幾何建模,併進行瞭多模塊可展開機構的運動學分析,得到多模塊聯動過程中運動部件的位置與模塊間偏角的關繫麯線,隨著滑塊位移的增大,外層模塊與內層模塊的偏角增大,最大值為1.22。。基于可展開機構的運動學分析,得到不同驅動方式下滑塊和鉸鏈在機構展開過程中的受力變化麯線,進行展開機構的驅動分析及低質量和高可靠性的驅動設計,為展開機構的順利展開提供保障。
유우가절전궤구재공간임무중적전개수요,기운동학분석화구동설계지관중요。근거공간다모괴가전개궤구중단개모괴적주향주기성급다모괴련접적비완전주기성특점,수선기우복수법화궤구단원적탁분사상진행료단개모괴적운동학건모,동시진행료만족곡면의합조건적다모괴전개궤구적궤하건모,병진행료다모괴가전개궤구적운동학분석,득도다모괴련동과정중운동부건적위치여모괴간편각적관계곡선,수착활괴위이적증대,외층모괴여내층모괴적편각증대,최대치위1.22。。기우가전개궤구적운동학분석,득도불동구동방식하활괴화교련재궤구전개과정중적수력변화곡선,진행전개궤구적구동분석급저질량화고가고성적구동설계,위전개궤구적순리전개제공보장。
Kinematics analysis and driver design of multi- module deployable structure Due to the deployment need of deployable structure in space missions, kinematics analysis and driver design of the structure were important. Based on the studied space multi - module deployable structure with the periodicity characteristics of single module in circumference direction and incompletely periodicity of the multi - module linkage, kinematics modeling of single module was conducted by using plural and decomposed method. At the same time, the kinematics model of multi- module deployable structure was established, which satisfies the aimed surface fitting. Then kinematics analysis of multi - module deployable structure was achieved to get the relationship curve between the location of the moving parts and the deflection of the modules. It was found that the deflections of the modules increase with the displacement of slider and reach 1.22 degrees. Based on the kinematics analysis of structure, the force curves of the sliders and the joints under different driver styles during deploying are given. The diver analysis and driver design with low mass and high reliability for deployable structure which can guarantee the smoothly deploying.