C/SiC壁板高声强噪声激励动态响应与失效分析

来源 :第二届中国国际复合材料科技大会 (CCCM-2) | 被引量 : 0次 | 上传用户:chongzimm
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  高超声速飞行器热防护系统和热结构包含多种形式的壁板结构,对巡航或再入中的噪声环境十分敏感,严重威胁着飞行器结构的完整性和可靠性。为考核复合材料薄壁结构的耐噪声性能,采用高声强行波管噪声试验装置,选取厚度为1mm、2mm和3mm的C/SiC平板为试验件。通过开展常温环境下156dB~165dB噪声激励动态响应试验,获得了C/SiC壁板在不同量级噪声作用下加速度和动态应变变化规律。
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