复合材料桨叶表面缺陷改进分析

直升机主桨叶主要是由复合材料制造而成,桨叶在成型过程中固化温度是直接的影响因素。本文重点研究固化温度对桨叶的性能产生的影响,对桨叶"凹陷"产生机理进行分析,对已成型桨叶修理方法研究,以及对现有材料性能指标下,通过工艺补片的方法来提高桨叶的高温抗压强度、高温抗压模量来解决桨叶"凹陷"问题,来满足桨叶的使用性能要求,同时对桨叶的固化成型的最佳固化时间进行研究,来确定桨叶在成型过程中温度的变化情况,解决了国产复合材料高温性能方面的问题,并进行装机验证。

Research on the Disfigurement of the Composite Blade Surface

The helicopter main blades are mainly made of composite materials.The blades solidify in the forming process of the temperature is directly influencing factors.This paper focuses on the influence of solidified temperature on the performance of the blade,analysis of the causes of the blade sunken,research on molded blade repair method.And in the ex-isting material performance index, it used the patch to increased the high temperature compressive strength and modulus,re-search on the best time to solidify the blade.