强度与环境
彊度與環境
강도여배경
STRUCTURE & ENVIRONMENT ENGINEERING
2014年
4期
1-5
,共5页
仪器舱%角振动%线角耦合
儀器艙%角振動%線角耦閤
의기창%각진동%선각우합
instrument cabin%angle vibration%coupling between translation and rotation
大型的仪器舱角振动试验对试验能力提出了新要求，仿真计算十分必要。建立了仪器舱和惯组小系统的有限元模型，研究了惯组系统置于仪器舱支架上后角振动传递特性的变化规律，分析了线角交联响应特性。分析表明，放置于支架上的惯组角振动传递特性变得恶劣，而且线振动输入下交联响应较大。研究结论对于仪器舱角振动试验的实施具有很大价值。
大型的儀器艙角振動試驗對試驗能力提齣瞭新要求，倣真計算十分必要。建立瞭儀器艙和慣組小繫統的有限元模型，研究瞭慣組繫統置于儀器艙支架上後角振動傳遞特性的變化規律，分析瞭線角交聯響應特性。分析錶明，放置于支架上的慣組角振動傳遞特性變得噁劣，而且線振動輸入下交聯響應較大。研究結論對于儀器艙角振動試驗的實施具有很大價值。
대형적의기창각진동시험대시험능력제출료신요구，방진계산십분필요。건립료의기창화관조소계통적유한원모형，연구료관조계통치우의기창지가상후각진동전체특성적변화규률，분석료선각교련향응특성。분석표명，방치우지가상적관조각진동전체특성변득악렬，이차선진동수입하교련향응교대。연구결론대우의기창각진동시험적실시구유흔대개치。
It is necessary to simulation before experiment because putting angle vibration experiment of instrument cabin in practice needs higher request of ability. Model of instrument cabin and inertial measurement unit(IMU) is established. Variation regularity of angle transfer characteristic of IMU putting on the bracket is researched. Rotation-linear-coupling characteristic is calculated. Analysis indicates that the angle transfer characteristic of IMU fixed on instrument cabin is worse than pure IMU, and strong coupling between rotation and linear vibration exists. The research of useful for reference to angle vibration experiment.
