In this paper,a differential equation of free vibration for symmetric lamlnae in transversebending was developed,A numerical calculation of base frequency of laminae was performed by finitedifference.

• 首先建立对称层合板横向弯曲自由振动的微分方程，应用差分法进行层合板基频的数值计算，进而给出测试正交编织纤维铺层的正轴向弹性模量的动态方法。