复合材料机身壁板和隔热隔音棉衍生构型热释放速率性能试验研究

Experimental study on heat release rate performance of composite airframe wall plate and thermal acoustic insulation blanket derived configuration

以复合材料机身壁板本身和隔热隔音棉加上复材壁板的衍生构型为研究对象,依据CCAR-25-R4适航标准和热释放速率试验方法,测试分析了复材壁板本身以及隔音棉加上复材为整体组合构型的热释放速率特性,分析了不同因素对热释放速率特性的影响。结果表明:选用的复合材料机身壁板本身的热释放速率符合适航标准中规定的峰值热释放速率要求,但总放热量不满足适航要求;在复材壁板和隔热隔音棉的衍生组合构型中,隔热隔音棉的隔热作用抑制了后续复材壁板的分解,使衍生构型能够满足适航标准中规定的峰值热释放速率和总放热量要求,符合当前适航条款验证方法提出的符合性判据。复材壁板及其衍生构型的热释放速率符合适航标准中规定的峰值热释放速率要求。

In this paper, the composite material fuselage wall plate and its composed configuration with thermal acoustic insulation blanket were studied. Based on CCAR-25-R4 airworthiness standard and heat release rate(HRR) test method, the HRR characteristics of the composite fuselage panel and the composite fuselage panel were tested and analyzed, and the effects of different factors on the HRR characteristics were analyzed. The results show that the HRR of the composite fuselage panel meets the requirement of peak heat release rate specified in current airworthiness standard, but the total heat release does not meet the airworthiness requirements. The results show that the HRR of composite material fuselage wall plate and derivative configurations meet the requirements of peak heat release rate specified in airworthiness standard.