无人潜水器吊装强度分析计算

The Strength Analysis and Calculation of an Unmanned Submersible under Lifting

在无人潜水器的吊装过程中,其直接受拉舱段和连接部件的强度是需要重点考虑计算的。给出了无人潜水器吊装强度分析的有限元数值分析和理论计算方法。首先利用建立质量点和刚性区域的方法对无人潜水器的起吊舱段进行了有限元分析,给出了边界条件施加方法和载荷计算方法,得到了指定起吊载荷下直接受拉舱段的应力应变分布,并根据分析结果找到了受力薄弱部位;再利用理论计算方法,对舱段连接处环形分布的受翻转力矩的螺栓组进行了受力分析和强度校核。

For the lifting process of unmanned submersible, there are certain requirement for the strength of cabins and interconnecting pieces. The numerical analysis of finite element method and theoretical calculation method were given to the lifting strength analysis. First, it used a finite-element analysis method by establishing the point-mass and rigid region to analyze cabin, gave the way to applying boundary conditions and loads calculating method, obtained stress and strain distribution of cabin under tension, and found the weak stress parts; then force analysis and check of the ring-distributed bolt-set connection with turning torque was finished by theoretical calculation method.