采用三维等效法计算复合材料的等效刚度常数，建立复合材料太阳帆板连接架的均衡三维有限元模型，分析其应变分布情况；根据霍夫曼失效准则，得到太阳帆板连接架不同部位的强度包线，并与有限元模拟得到的应变进行对比，以对连接架结构强度进行校核；对复合材料太阳帆板连接架进行静力试验，对有限元分析结果进行试验验证。结果表明：采用有限元模拟得到太阳帆板连接架在外加载荷作用下的应变分布结果与试验结果较接近，主梁与套筒连接处0°方向应变的相对误差小于9.00%，90°方向应变的相对误差比0°方向的略大，最大相对误差为13.30%；太阳帆板连接架结构强度的校核结果与静力试验结果相吻合，接头端部和套筒拐角位置为薄弱环节。

The effective elastic constants of composite were calculated by three-dimensional equivalent method. The balanced three-dimensional finite element model of composite solar array connector was built to analyze the strain distribution. According to the Hoffman failure criterion, the strength envelope of different positions of the solar array connector was obtained. The strength of the solar array connector structure was checked by comparing the strength envelope with simulated strains of the connector. The static tests were conducted on composite solar array connector to verify the accuracy of finite element simulation results. The results show that the strain distribution results of solar array connector under external loads by finite element simulation were similar with the experiment results. The relative error of strains in 0° direction at the joint of main girder and sleeve was lower than 9.00%. The relative error of strains in 90° direction was slightly larger than that in 0° direction, with the maximum value of 13.30%. The strength check results of the solar array connector structure were consistent with the static testing results. The end of the joint and orthogonal turning point of the sleeve were the weak points of the solar array connector.