CAJ | 학술논문

针对某固体发动机工作过程中滚珠式打开机构自锁结构失效问题，采用有限元方法进行仿真计算，分析了滑板中心轴偏斜不同角度情况下整个打开机构的承载能力变化情况，并采用气压模拟试验装置对仿真计算结果进行了试验验证。计算及试验结果表明，滑板中心轴偏斜角度越大，打开机构承压能力越低。该结果可为具有滚珠式打开机构的固体发动机完善失效模式。
침대모고체발동궤공작과정중곤주식타개궤구자쇄결구실효문제，채용유한원방법진행방진계산，분석료활판중심축편사불동각도정황하정개타개궤구적승재능력변화정황，병채용기압모의시험장치대방진계산결과진행료시험험증。계산급시험결과표명，활판중심축편사각도월대，타개궤구승압능력월저。해결과가위구유곤주식타개궤구적고체발동궤완선실효모식。
Aiming at the opening mechanism with balls of solid-rocket-motor,the finite element analysis method was adopted to get the simulation analysis results.The changing history of whole opening mechanism′s carrying capacity under the situation when the sliding plate′s roller off tracked to different angle was analyzed. Moreover a new concert atmospheric-pressure confirmation test was performed to verify the simulation analysis results. The simulation computation and the confirmation test show that the bigger the off tracked angle of the sliding plate′s roller is,the worse the carrying capacity of the opening mechanism will be. Such study results could provide reference for failure mode analysis for the solid-rocket-motor with opening mechanism.