Abstract: The suspended monolithic wall panel structure is a new structure of aluminum alloy hovercraft. The axial compression ultimate bearing capacity of the suspended monolithic wall panel has been analyzed by using the nonlinear finite element method. The applicability of the design formula for the stability of stiffened plates in the current "Rules for Construction and Classification of Sea-going High Speed Craft" is also discussed. The effects of the initial defect, beam stiffness, lateral pressure and residual stress on the ultimate bearing capacity of the aluminum alloy monolithic panels are investigated for the four aluminum alloymonolithic wall panel models, including one-span, five-span, strong beam and weak beam. The results show that the suspended aluminum alloy stiffened plate simulated and calculated using the ISSC defect form is the lowest. When the number of the span increases and the strength of the beam is insufficient, the lateral pressure will significantly reduce the axial compression ultimate bearing capacity of the stiffened plate, while the effect of the residual stress is relatively small.

Key words: suspended monolithic wall panel, ultimate bearing capacity, nonlinear finite element, rule

摘要： 悬挂式整体壁板结构是一种新型的铝合金气垫船结构形式。文章采用非线性有限元方法,分析了悬挂式铝合金整体壁板的轴压极限承载力,探讨现行《海上高速船入级与建造规范》中加筋板稳定性设计公式的适用性;研究了一跨与五跨、强横梁与弱横梁等4种铝合金整体壁板模型,以及初始缺陷、横梁刚度、侧向压力、残余应力等因素对铝合金整体壁板极限承载力的影响。结果表明：使用ISSC缺陷形式模拟计算的悬挂式铝合金加筋板强度最低;当跨数增多且横梁强度不足时,侧向压力将明显降低加筋板的轴压极限承载力;残余应力的影响则相对较小。

关键词: 悬挂式整体壁板, 极限承载力, 非线性有限元, 规范