摘要
利用有限元方法及商业软件 MSC.NASTRAN 对某型靶弹进行了模态分析,得出弹身的一阶弯曲振型,并根据加速度计的原始位置,对弹体结构和弹载设备布局进行了改进,使得加速度计尽量位于弹身弯曲振型的节点上,减少了加速度计附加的不利信号,为控制系统设计打下了良好的基础。
Normal modes to a certain target missile is analysed by MSC.NASTRAN and got the mode 1 shape.Then ac- cording to the location of accelerometers,missile's configuration is modified and the layout of the equipments in the missile changed in order to be close to the crunode of vibration mode as soon as possible.In this way,disadvantage sig- nal absorbed in accelerometers will be wiped off,and create good foundation for flight control system.
出处
《弹箭与制导学报》
CSCD
北大核心
2005年第S2期283-285,共3页
Journal of Projectiles,Rockets,Missiles and Guidance
