广西防城港20万吨级码头设计施工浅述

广西防城港20万吨级码头为重力墩式结构,其下构为临时有底大圆筒。文章对该码头的结构设计、施工设计的全过程进行了论述。     

轨道卧铺客车乘员二次碰撞安全性研究

针对轨道卧铺客车包厢结构复杂、乘员二次碰撞具有多样化且国内鲜有相关研究文献的现状,以某型卧铺客车为研究对象,基于2个典型碰撞工况对车体结构的耐撞性进行了验证,同时研究了乘员二次碰撞安全性.通过详细建立卧铺车厢结构,将客车一次碰撞“加速度-时间”响应曲线作为输入,对不同位置、不同姿态、不同性别乘员的二次碰撞安全性进行了研究.研究结果为卧铺车厢结构设计及改进提供了理论依据.     

基于DFSS商用车卧铺系统隔热性能优化设计

运用DFSS流程优化了卧铺系统原设计方案,综合对比分析得出最优的9种方案。通过参数设计方法深入研究了卧铺系统隔热性与隔热因子之间的关系。台架试验和实车试验结果表明:改进方案不仅显著改善了卧铺系统隔热性差的问题,而且降低了系统30%的重量。     

山东省沿海大型原油泊位布局

近年来,国家原油进口政策的较大调整和山东省原油运输条件的充分改善将对沿海大型原油泊位布局规划产生重大影响。为此,对新形势下的山东省沿海大型原油泊位的合理布局进行研究。结合全省炼化产业和原油运输系统现状及发展趋势,采用供需平衡的分析方法,提出新的大型原油泊位布局规划方案。研究表明,山东省地方性炼油企业进口原油将快速增长,原油一程接卸港的管道疏运能力大大增强,现行大型原油泊位布局规划已不适应新形势的要求,新建泊位应重点考虑地方性炼油企业需求,建议增加东营港为原油一程接卸港。     

某重件码头加固修复设计关键技术分析

通过对某重件码头桅杆吊倾覆后受损情况的检测分析,提出了桅杆吊臂架下铰点基座和钢横撑结构段修复的新方法,同时新增防后倾装置,不仅保证了码头结构的安全性,而且节约了工期和修复成本,为类似维修加固项目提供参考.     

高桩码头BIM协同设计应用研究

依托工程实例,基于Revit软件开展高桩码头BIM协同设计工作.在选取协同方法、模型拆分与组织、中间资料提送、多专业协同设计及模型整合方面进行应用研究,为开展类似工程BIM设计工作提供了参考.     

Multi-objective optimization study on dimensions of medium-sized cruise ship in concept phase北大核心CSCD

［Objective］Aiming at the problem of too many influencing factors and too little reference data for determining the dimensions of medium-sized cruise ships in the concept phase, a simplified multi-objective optimization method based on the fitting of dimensions and performance is proposed. ［Method］First, the dimension relations of medium-sized cruise ships are analyzed and the influence of the latest SOLAS requirements used to determine the optimization range. Second, the influence of cruise ship dimensions on space, resistance, stability and seakeeping are analyzed. Next, based on the principles of genetic algorithms, a multiobjective optimization algorithm with high robustness and high engineering adaptability is determined to establish a multi-objective optimization model for the concept design of medium-sized cruise ships. Finally, the Pareto solution obtained by multi-objective optimization is analyzed to provide initial references for determining the dimensions of the target cruise ship. ［Results］Implemented via a genetic algorithm, the optimization program proposed herein is applied in the concept design of a medium-sized cruise ship in order to optimize the initial dimensions, thereby achieving the expected outcome of providing reasonable initial dimensions for cruise ship design. ［Conclusion ］ The proposed simplified multi-objective optimization model can provide feasible initial dimensions for medium-sized cruise ships in the concept phase. As the Pareto solution obtained by multi-objective optimization has different focuses such as resistance and stability, the most suitable solution needs to be selected according to the design object. © 2023 Chinese Journal of Ship Research. All rights reserved.