Abstract: Split hopper barge is an advanced barge for sludge discharge, which is widely used in inland waterway dredging projects. When the working environment is relatively bad, if the hinge arm is damaged, the half body cannot be opened and closed normally, which cannot meet the operation requirements and is prone to safety accidents. The stress of hinged arm and deck hinged structure of a small inland river split hopper barge was theoretically analyzed and improved, and the strength of the improved hinged arm structure was calculated by finite element method. Combining with the calculation results, whether the improved structure meets the strength specification requirements was discussed. The results show that the force of the optimized and improved hinge system is more reasonable and within a safe range.

Key words: ship engineering, split hopper barge, structural type improvement, hinge arm strength, force analysis, finite element analysis

摘要： 对开泥驳是一种较为先进的抛卸淤泥的驳船，广泛应用于内河航道疏浚工程中。当作业环境较为恶劣时，如果铰链臂发生破坏，会导致半体无法正常打开和闭合，不能满足作业要求且容易发生安全事故。针对一艘小型内河对开泥驳的铰链臂和甲板铰链结构受力进行了理论分析并加以改进，并采用有限元方法对改进后的铰链臂结构进行了强度计算，讨论了改进后的结构是否满足强度规范要求。结果表明：优化改进后的铰链系统受力更为合理，且在安全范围内。

关键词: 船舶工程, 对开泥驳, 结构型式改进, 铰链臂强度, 受力分析, 有限元分析