新型导弹惯组支架的共固化阻尼减振方法研究  

Vibration Suppression with Co-curing Damping Composite for the Inertial Measurement Unit Bracket of a New-type Missile

作　　者：李海岩[1] 徐洋 王建月[3] 王彬[1] Li Hai-yan;Xu Yang;Wang Jian-yue;Wang Bin(R&D Center,China Academy of Launch Vehicle Technology,Beijing,100076;Beijing Institute of Aerospace Systems Engineering,Beijing,100076;Aerospace Research Institute of Materials and Processing Technology,Beijing,100076)

机构地区：[1]中国运载火箭技术研究院研究发展中心,北京100076 [2]北京宇航系统工程研究所,北京100076 [3]航天材料及工艺研究所,北京100076

出　　处：《导弹与航天运载技术》2021年第3期56-60,共5页Missiles and Space Vehicles

摘　　要：为降低惯组等精密设备的振动响应,采用共固化阻尼技术开展惯组支架的减振研究。首先,应用复合材料进行等代设计,获取惯组支架结构形式;然后基于Layerwise板理论建立共固化阻尼支架的有限元模型,并完成复合材料铺层及阻尼铺层参数优化,实现惯组支架的结构/减振一体化设计;最后,通过地面振动试验验证减振设计的有效性。试验结果表明,相比于传统的金属材料和复合材料,共固化阻尼支架的放大倍数显著减小,降幅达到75%以上,减振效果优异。A new type of missile undergoes harsh vibration environments.In order to reduce the vibration response of precision equipment,applying co-curing damping composite on IMU bracket has been studied.Firstly,the composite material is used for equivalent design to obtain the bracket initial structure.Then,based on the layerwise plate theory,finite element model of co-curing damping composite bracket is established.And the optimization of the composite layer and damping layer parameters is completed to achieve the integration design of structure and vibration reduction.Finally,the effectiveness of this method has been validated using vibration experiment.Results show that compared with traditional metal materials and composite materials,the magnification of co-curing damping composite bracket is significantly reduced by more than 75%,and therefore the effect is excellent.

关 键 词：共固化 阻尼 减振 优化设计 

分 类 号：TB21[一般工业技术—工程设计测绘]