【摘要】 建立了用于碳纤维酚醛树脂复合材料粘性系数动态识别的二参数模型 ,利用一试件的实测固有频率识别此参数 ,并用其它试件的实测结果加以检验。在识别此参数时还考虑了空气阻尼的影响。分析结果表明此方法是成功的 ,误差达到最小范围更多还原

【Abstract】 In this paper, a two parameter model is proposed to identify the viscosity coefficients of composites. These two parameters are the viscosity coefficient of resin and the viscosity coefficient of carbon fiber in the woof direction respectively. The parameters were identified by using the field measured damping ratio of a cantilever gird, and tested by using the field measured results of other girds. In identifying, the influence of air resistance is taken into account. The result of analysis shows this method is effective, and its error is agreeable.更多还原