CAJ | 학술논문

某红外导引头视线稳定平台,在装调试验过程中发现伺服机构的谐振频率较低.为了解决该问题,从伺服机构的工作原理出发,建立伺服机构动力学方程.对动力学方程进行求解,分析刚度、转动惯量、动不平衡等因素对伺服机构谐振频率的影响程度,最终找出了谐振频率的影响因素和关键部位.进而通过仿真实验提出了提高伺服机构谐振频率的改进措施.研究结果表明,通过改进关键部位的结构参数和提高材料性能,可以大幅提高伺服机构的谐振频率,满足使用的要求.
모홍외도인두시선은정평태,재장조시험과정중발현사복궤구적해진빈솔교저.위료해결해문제,종사복궤구적공작원리출발,건립사복궤구동역학방정.대동역학방정진행구해,분석강도、전동관량、동불평형등인소대사복궤구해진빈솔적영향정도,최종조출료해진빈솔적영향인소화관건부위.진이통과방진실험제출료제고사복궤구해진빈솔적개진조시.연구결과표명,통과개진관건부위적결구삼수화제고재료성능,가이대폭제고사복궤구적해진빈솔,만족사용적요구.
During the course of assembling and adjusting ex-periment of line of sight stability platform of certain infrared seeker it has been discovered that the resonance frequency of servo mecha-nism was rather low. In order to solve this problem, proceed from the working principle of servo mechanism the dynamics equation of servo mechanism was established. The solution on dynamics equa-tion was carried out, the influencing extent of factors of rigidity, moment of inertia, dynamic unbalance etc. on the resonance fre-quency of servo mechanism were analyzed, and finally the influen-cing factors and the key positions of resonance frequency have been found out. And then by means of simulation test the measures of im-provement for enhancing the resonance frequency of servo mecha-nism were put forward. The result of study showed that through the improvement on the structural parameters of the key position and en-hancing the property of material it could be possible to increase the resonance frequency of the servo mechanism by a big margin and satisfied the requirements of application.