基于板壳理论的多泡结构承压性能研究  

Study on bearing capacity of multi-bubble structure based on plate-shell theory

作　　者：蒋雷雷 潘光[1,2] 曹永辉[1,2] JIANG Leilei;PAN Guang;CAO Yonghui(School of Marine Science and Technology,Northwestern Polytechnical University,Xi’an 710072,China;Key Laboratory for Unmanned Underwater Vehicle,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]西北工业大学航海学院,陕西西安710072 [2]西北工业大学无人水下运载技术重点实验室,陕西西安710072

出　　处：《华中科技大学学报（自然科学版）》2020年第5期93-98,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51709229,51879220)。

摘　　要：为研究多泡结构在承受均匀径向外压下的承压性能,基于板壳理论建立了三圆柱相交多泡结构的强度和稳定性计算公式;利用数值仿真法验证了所建立公式的准确性,并分析了理论解与仿真解之间产生误差的原因;同时对比等厚度该结构与单圆柱耐压壳体的承压性能.结果表明:所建立的理论公式具有一定的适用性和有效性;当多泡结构的接触角大于70°时,多泡结构的承压性能优于单圆柱壳体的承压性能;接触角越大,滑翔机内部空间利用率会越高.该结构可为解决翼身融合水下滑翔机内部空间利用率低提供有效途径.To study the bearing capacity of multi-bubble structure under uniform radial external pressure,the strength and stability formulas of the three-cylinders intersecting multi-bubble structure was established based on the thin plate-shell theory.The accuracy of the formulas was verified by numerical simulation,and the reason for the error between the theoretical and simulation results was analyzed.Meanwhile,the bearing capacity of the structure was compared with that of the single-cylindrical shell with equal thickness.Results show that the theoretical formulas has certain applicability and effectiveness;when the contact angle of the structure is greater than 70°,the bearing capacity of the structure is better than that of the single-cylindrical shell;the larger the contact angle,the higher the internal space utilization of the glider.This structure can provide an effective way to solve the low utilization of the internal space of the blended-wing-body underwater glider.

关 键 词：多泡结构 板壳理论 强度 稳定性 数值仿真分析 

分 类 号：U661.43[交通运输工程—船舶及航道工程]