CAJ | 학술논문

为了解决某红外导引头伺服机构谐振频率较低的问题,基于动力学分析软件ADAMS建立伺服机构的虚拟样机;基于MATLAB/SIMULINK完成了伺服机构的控制系统建模;采用联合仿真和虚拟扫频的方法分析了刚度、摩擦、转动惯量、动不平衡等因素对伺服机构谐振频率的影响;确定了影响某导引头伺服机构谐振频率的关键部位和敏感参数.仿真结果表明,通过改进关键部位的结构参数和控制参数可以大幅提高伺服机构的谐振频率,更好地以满足导引头伺服机构的使用要求.
위료해결모홍외도인두사복궤구해진빈솔교저적문제,기우동역학분석연건ADAMS건립사복궤구적허의양궤;기우MATLAB/SIMULINK완성료사복궤구적공제계통건모;채용연합방진화허의소빈적방법분석료강도、마찰、전동관량、동불평형등인소대사복궤구해진빈솔적영향;학정료영향모도인두사복궤구해진빈솔적관건부위화민감삼수.방진결과표명,통과개진관건부위적결구삼수화공제삼수가이대폭제고사복궤구적해진빈솔,경호지이만족도인두사복궤구적사용요구.
In order to improve lower resonance frequency of the infrared seeker servo,virtual prototype of the servo was established based on dynamics software ADAMS;the control system was modeled in MATLAB/SIMULINK;based on the prototype and the control model,adopting the means of joint simulation and virtual sweeping-frequency,effect of stiffness,friction,moment of inertia and unbalanced mass on resonance frequency of the servo was analyzed and influences of key positions and sensitive parameters on resonance frequency were found. The simulated result shows that the harmonic frequency can be improved dramatically by adjusting the parameter of key parts,satisfies the requirement of the application of the servo to seeker.