| Citation: | LIU Jieming，ZHOU Biao，WEN Weidong，et al.Natural vibration analysis of 2.5D resin⁃based braided composite plates［J］.Journal of Aerospace Power，2022，37（7）：1469‑1477. doi: 10.13224/j.cnki.jasp.20210118
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Modal vibration characteristics of 2.5D T800 carbon fiber/BMP350 polyimide resin braided composite plates were numerically and experimentally investigated.Firstly,the multi⁃scale method and meso⁃scale finite element method were employed to numerically predict the modal vibration characteristics of the cantilevered composite plates respectively.Secondly,modal behaviors of the cantilevered composite plates were experimentally derived by modal testing.Compared with the experimental results,the maximum error of natural frequency predicted by simulation was 10%,which verified the validity of the above two natural vibration analysis methods.This work could pave the way to the subsequent research concerning dynamic analysis and design of 2.5D resin⁃based braided composite blades.
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