船舶桁架式桅杆结构强度计算分析  

Strength calculation and analysis of ship truss mast structure

作　　者：黄迎春[1] 张高升 HUANG Yingchun;ZHANG Gaosheng(College of Naval Architecture and Ocean Engineering,Wuhan Institute of Shipbuilding Technology,Wuhan 430050,China)

机构地区：[1]武汉船舶职业技术学院船舶与海洋工程学院,湖北武汉430050

出　　处：《舰船科学技术》2025年第7期64-68,共5页Ship Science and Technology

基　　金：2019年武汉船舶职业技术学院科研项目(2019y01)。

摘　　要：为全面模拟桁架式桅杆的复杂几何形状和材料特性,精准捕捉结构中的应力分布情况,针对舰船桁架式桅杆结构强度展开计算分析。首先,通过有限元法,模拟桁架式桅杆的复杂几何形状和材料特性,建立桅杆结构的有限元模型;然后,针对不同铝合金规格构件与不同加固方案下,通过分析桅杆结构的应力分布情况,完成对结构强度的分析。实验证明:不同规格构件的计算应力均低于许用最大应力值,表明顶桅与主桅的铝合金构件在结构强度上均能满足稳定性要求;通过比较横摇载荷条件下各方案的长细比,发现在桅杆侧向及纵向增设斜向支撑杆件并结合横向隔层加固方案,可以明显降低长细比,表明此种方案能有效提升桁架式桅杆的整体稳定性,使其在面对横摇运动时具备更优的抵抗能力。To comprehensively simulate the complex geometric shape and material characteristics of truss masts,accurately capture the stress distribution in the structure,and conduct calculation and analysis on the strength of ship truss masts.Firstly,by using the finite element method,the complex geometric shape and material properties of the truss mast are simulated,and a finite element model of the mast structure is established;Then,based on different aluminum alloy specifications and reinforcement schemes,the stress distribution of the mast structure is analyzed to complete the analysis of the structural strength.Experimental results have shown that the calculated stress of components of different specifications is lower than the maximum allowable stress value,indicating that the aluminum alloy components of the top mast and main mast can meet the stability requirements in terms of structural strength;By comparing the aspect ratios of various schemes under lateral load conditions,it was found that adding diagonal support rods in both the lateral and longitudinal directions of the mast,combined with a transverse interlayer reinforcement scheme,can significantly reduce the aspect ratio.This indicates that this scheme can effectively improve the overall stability of the truss mast,enabling it to have better resistance to lateral motion.

关 键 词：桁架式桅杆结构 强度分析 应力分布 长细比 

分 类 号：U663.6[交通运输工程—船舶及航道工程]