CAJ | 학술논문

反射镜组件作为空间相机的重要组件，在进行组件装配时，不但要保证其联接结构具有足够的联接预紧力以抵御动载荷或工作温度变化带来的影响，还要准确控制拧紧力矩避免对镜面面形造成较大的影响。以某空间相机的主镜组件为例，对螺钉防松的工作机理、采用防松粘接剂情况下的实际紧固力矩计算、对反射镜镜面的影响等方面进行了分析计算，并进行了试验验证。分析及试验结果表明，不同的螺钉防松胶对拧紧力矩、预紧力及反射镜面形造成较大的影响，其中，与不使用防松胶相比，硅橡胶（GD-414）和厌氧胶（J-222）对镜面面形的影响分别增加了31.9%和74%。在使用螺钉防松胶进行防松处理时，应根据不同防松胶的具体特性，调整螺钉拧紧力矩，在联接环节具有较高可靠性的同时，降低其对反射镜面形的影响。
반사경조건작위공간상궤적중요조건，재진행조건장배시，불단요보증기련접결구구유족구적련접예긴력이저어동재하혹공작온도변화대래적영향，환요준학공제녕긴력구피면대경면면형조성교대적영향。이모공간상궤적주경조건위례，대라정방송적공작궤리、채용방송점접제정황하적실제긴고력구계산、대반사경경면적영향등방면진행료분석계산，병진행료시험험증。분석급시험결과표명，불동적라정방송효대녕긴력구、예긴력급반사경면형조성교대적영향，기중，여불사용방송효상비，규상효（GD-414）화염양효（J-222）대경면면형적영향분별증가료31.9%화74%。재사용라정방송효진행방송처리시，응근거불동방송효적구체특성，조정라정녕긴력구，재련접배절구유교고가고성적동시，강저기대반사경면형적영향。
Mirror subassembly is the important component of space camera, so the sufficient pre-tightening force of the joint structure should be guaranteed to resist the effect caused by dynamic load or temperature change in component assembling, at the same time, tightening torque should also be accurately controlled to reduce the influence on the surface figure. The primary mirror of some space camera taken as an example, the principle of threaded connection’s looseness-proof, the precise tightening torque caused by looseness-proof adhesive, and the effect on surface figure are analyzed and calculated, and verification test is carried out. The results of both the analysis and the experiments indicate that different types of looseness-proof adhesive can make great influence on the tightening torque, pre-tightening force and mirror surface figure, which can be increased to 31.9% and 74% more with Silicon Rubber adhesive (GD-414) and anaerobic adhesive(J-222)used respectively compared with no looseness-proof adhesives. When looseness-proof adhesive used, tightening torque should be precisely adjusted according to the special properties of the adhesives so as to ensure that the reliability of joint structure is sufficient and the influence on the mirror surface figure is under control.