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目的通过橡胶材料特性实验研究,为薄壳结构减振器设计中橡胶材料的选择提供试验依据。方法对某航天薄壳产品的金属-橡胶复合型减振器设计进行研究,对比使用3种不同橡胶材料的减振器在正弦振动、随机振动试验时的减振效果,研究橡胶材料特性对该种形式减振器减振性能的影响。结果设计的金属-橡胶复合型减振器可以实现3个方向的减振作用,橡胶材料特性(硬度、阻尼比)直接影响减振效果。对于正弦试验,橡胶材料的硬度特性影响表现最大,对于随机试验,橡胶材料的阻尼比特性影响表现最大。结论进行减振器设计时,橡胶材料的选择要综合考虑产品结构特点、产品所要耐受的振动环境和减振器的结构这3个要素。
Aim Through the experimental study of rubber material properties, this paper provides the experimental basis for the selection of rubber materials in the design of shock absorber for shell structure. Methods The design of the metal-rubber composite shock absorber of a spacecraft shell was studied. The damping effect of the shock absorber using three different rubber materials in the sine vibration and the random vibration test was compared with that of the rubber material. Influence of Vibration Absorber on Vibration Absorber of Different Form. The results of the design of the metal - rubber composite shock absorber can achieve vibration damping in three directions, the rubber material properties (hardness, damping ratio) directly affect the damping effect. For the sine test, the hardness characteristics of the rubber material have the most influence on the randomness test. The damping properties of the rubber material are the most influential. Conclusion In the design of shock absorber, the choice of rubber material must take into account the structural features of the product, the vibration environment to be tolerated by the product, and the structure of the shock absorber.