| Citation: | PENG Yunqiang, JIA Dong, ZHONG Weizhou, et al. Quasi-static mechanical property of metal rubber vibration absorber[J]. Journal of Aerospace Power, 2023, 38（11）：2666-2674 doi: 10.13224/j.cnki.jasp.20220225
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Based on the actual service environment of metal rubber vibration absorber, the transverse and axial quasi-static loading fixtures of vibration absorbers were designed. The corresponding quasi-static mechanical properties of 175 metal shock absorbers, which can be divided into 5 kinds of types, were successfully obtained. Furthermore, the experimental data were fitted with high order polynomial on the basis of commercial software. The average values and performance boundaries of transverse and axial load-displacement curves for the 5 kinds of metal rubber vibration absorbers were successfully determined. The results showed that the dispersions of transverse and axial load-displacement curves of vi-bration absorbers did not obey the common law of Gaussian probability distribution, making difficult to be taken into account at the same time. The dispersion of MR2 was the minimum and MR3 was the maximum under axial loading, but the dispersion of MR3 was the minimum and MR2 the maximum under transverse loading. The corresponding per-formance boundaries can provide important support for the model selection and safety assessment of metal rubber vibra-tion absorber. According to the three-dimensional computed tomography analytical device of μCT, the three-dimensional morphology of metal wire component contained in the metal rubber vibration absorber was established. Furthermore, the volume of metal wire in different height regions were determined successfully.
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