论文部分内容阅读
基于黏弹性材料在剪切力作用下产生较大阻尼损耗的原理,初步设计了一种星载相机隔振器。采用正交试验设计结合有限元分析的方法,详细探究了隔振器的结构参数对其固有频率和模态损耗因子的影响,据此对隔振器的结构进行优化。建立了相机隔振系统的有限元模型,并对其进行了力学强度校核和隔振性能分析,结果表明,使用该隔振器的相机隔振系统能满足卫星发射阶段的力学环境要求,并具有较好的隔振效果。
Based on the principle that the viscoelastic material produces large damping loss under the action of shearing force, a spaceborne camera vibration isolator is preliminarily designed. The influence of the structural parameters of the vibration isolator on its natural frequency and modal loss factor is studied in detail by using orthogonal experimental design combined with the finite element analysis. Based on this, the structure of the vibration isolator is optimized. The finite element model of the camera vibration isolation system is established, and the mechanical strength checking and vibration isolation performance analysis are carried out. The results show that the camera vibration isolation system using the vibration isolator can meet the mechanical environment requirements of the satellite launch phase Has good vibration isolation effect.