船舶管系生产管控系统开发

开发一套适合船舶行业的船舶管系生产管控系统，利用信息化手段，具备原材料采购、计划管理、生产派工和报工、质量管理等功能，实现多部门多项目实时在线协同作业。该系统上线运行后，有效提高企业生产效率，降低生产成本，为推进智能制造奠定数据基础。     

某深水通用型FPSO消防水管路系统支架整体强度分析

目前在工程问题中，对于管道支架强度的计算往往仅考虑单支架强度而忽略相邻支架整体强度。以某深水通用型浮式生产储卸油装置（Floating Production Storage and Offloading，FPSO）消防水管路系统部分管道为研究对象，采用CAESARⅡ管道应力分析软件提取管道支架荷载数据，分别对单支架受力的应力与变形情况和相邻支架整体受力的应力与变形情况进行计算与分析。在不同算例中，支架最大应力与变形同受力情况相关，但在相邻支架整体受力下，支架最大应力与变形均显著降低。结果表明，单支架强度的传统计算方式偏于保守。在实际工程中对于管道支架强度分析应综合考虑相邻支架整体强度。     

Analysis on maneuvering motion characteristics of submarine under static moment in vertical plane北大核心CSCD

[Objectives]Aiming at the problem of poor depth-changing ability of the stern rudder of submarine at low speed, and the problem of reversing the movement trend is difficult when the stern rudder is stuck and encountering abrupt changes of seawater density in the vertical steering maneuver. This paper conducts the mechanism research of static moment maneuver. [Methods]First, it is proved through theoretical analysis that the static moment maneuver can eliminate the reversed velocity phenomenon of the stern rudder. Then, the surfacing process under the static moment maneuver and the rudder hydrodynamic control is numerically simulated. [Results]The simulation results show that the static moment maneuver can make the submarine maintain good vertical plane maneuverability at low speed, eliminate the reversed velocity phenomenon of the stern rudder, and avoid excessive trim angle of the submarine at high speed. At the same time, the recovery effect of the two emergency situations of rudder jamming and falling deep has been improved. [Conclusions]The static moment maneuver is beneficial to the maneuverability and safety of the submarine. The research in this article can provide a reference for the maneuverability design of submarine. © 2023 The Author(s).