升船机承船厢结构有限元分析研究

Finite element analysis of ship chamber in ship life

为解决升船机承船厢设计制造中复杂结构刚度应力计算等问题,将完全薄壁空间结构有限元建模的方法应用到升船机承船厢的模型建立中,改进了传统采用板梁结构对承船厢进行有限元建模而导致计算不准确的不足,综合考虑了承船厢结构的复杂性,使计算结果更为精确。为对空间薄壁结构承船厢模型进行计算分析,应用hypermesh软件的前处理功能对其进行了模型建立及网格划分,并应用ANSYS软件对其进行了求解和后处理。在各极限工况下对承船厢进行了刚度、强度校核,进而指导了承船厢的设计制造。在上述计算结果的基础上,设计了承船厢变形的观测评价方法。研究结果表明,该方法对升船机的设计制造有很好的指导意义,对同类型的升船机承船厢的设计计算具有重要参考价值。

In order to solve the problems of complex structures stiffness and stress calculations in the design and manufacture of ship carrier, the space thin-walled finite element modeling method was investigated to model the ship carrier. The deficiencies of inaccurate calculation which used of plate girder finite element method were improved.The model of Wujiang Shatuo ship carrier was established and do the meshing based on the pretreatment functions of hypernaesh software, and do the solve and post-processing based on the ANSYS software.Under the working condition of maximum limit, both the deflection of the main stringer, beam and the stiffness of the key structure has been checked. On the basis of the above result, the methods of deformation observation of ship carrier were designed.The study results indicate that,the space thin-walled finite element modeling method has a good guidance significance in the the design and manufacture of the ship carrier, also has important reference value for the design of same type ship carrier.