A damping model of fiber reinforced composites was established in this study. Meanwhile, the accuracy of the damping model was verified through experiments. Subsequently, the factors affecting the damping ratio and dynamic response under sinusoidal excitation force of fiber reinforced composites were explored and the measures improving the damping ratio were proposed. The damping model of the fiber reinforced composite was applied to its dynamic equation, and then the dynamic response curves were calculated by the direct time integration method, and the calculated dynamic response curves were compared with the experimental dynamic response curves. The two groups of curves almost coincided, verifying the excellent accuracy of the damping model. Additionally, this study discussed the effects of the fiber volume fraction, the thickness of each layer, the number of layers, the orientation of laying-up, and the sequence of layers on the damping ratio and dynamic response of composite material laminates. The damping model proposed in this paper was suitable for calculating the response curves of composite laminates under sinusoidal concentrated loads. The damping model can be used to calculate the response of the laminate in the elastic range. The accuracy of the model was verified through experiments in the frequency range of 10–200 Hz. The method of calculating the dynamic response of fiber reinforced composites proposed in this study can be easily inserted into the finite element analysis software and directly applied to engineering practice.

本研究建立了纤维增强复合材料的阻尼模型。同时，通过实验验证了阻尼模型的准确性。随后，探讨了影响纤维增强复合材料在正弦激振力下的阻尼比和动态响应的因素，并提出了提高阻尼比的措施。将纤维增强复合材料的阻尼模型应用于其动力学方程，然后采用直接时间积分法计算动态响应曲线，并将计算出的动态响应曲线与实验动态响应曲线进行比较。两组曲线几乎重合，验证了阻尼模型的优异精度。此外，本研究还讨论了纤维体积分数、每层厚度、层数、叠层方向、层序对复合材料层合板阻尼比和动态响应的影响。本文提出的阻尼模型适用于计算复合材料层合板在正弦集中载荷作用下的响应曲线。阻尼模型可用于计算层压板在弹性范围内的响应。通过在 10-200 Hz 频率范围内的实验验证了模型的准确性。本研究提出的纤维增强复合材料动力响应计算方法可以方便地插入有限元分析软件中，直接应用于工程实践。本文提出的阻尼模型适用于计算复合材料层合板在正弦集中载荷作用下的响应曲线。阻尼模型可用于计算层压板在弹性范围内的响应。通过在 10-200 Hz 频率范围内的实验验证了模型的准确性。本研究提出的纤维增强复合材料动力响应计算方法可以方便地插入有限元分析软件中，直接应用于工程实践。本文提出的阻尼模型适用于计算复合材料层合板在正弦集中载荷作用下的响应曲线。阻尼模型可用于计算层压板在弹性范围内的响应。通过在 10-200 Hz 频率范围内的实验验证了模型的准确性。本研究提出的纤维增强复合材料动力响应计算方法可以方便地插入有限元分析软件中，直接应用于工程实践。通过在 10-200 Hz 频率范围内的实验验证了模型的准确性。本研究提出的纤维增强复合材料动力响应计算方法可以方便地插入有限元分析软件中，直接应用于工程实践。通过在 10-200 Hz 频率范围内的实验验证了模型的准确性。本研究提出的纤维增强复合材料动力响应计算方法可以方便地插入有限元分析软件中，直接应用于工程实践。