海洋工程装备与技术

• 海洋新能源开发与利用 • 上一篇    下一篇

基于ANSYS的短抬梁结构优化设计

卫旭敏, 张传荣, 张恩铭, 郭洪, 吴文龙, 张荆柯   

  1. (中海福陆重工有限公司,广东珠海519090)
  • 出版日期:2018-10-30 发布日期:2018-10-30
  • 作者简介:卫旭敏(1984—),男,一级建造师,主要从事海洋石油工程设计和人事管理工作。

The Optimal Design of Conveying Frame Based on Ansys Software

WEI Xu-min,ZHANG Chuan-rong,ZHANG En-ming,GUO Hong,WU Wen-long,ZHANG Jing-ke   

  1. (COOEC-Fluor Heavy Industries Co., Ltd., Zhuhai, Guangdong 519090, China)
  • Online:2018-10-30 Published:2018-10-30

摘要: 按照传统的结构设计,首先是凭借经验和判断做出结构的初始方案,包括总体布置、材料选择、结构尺寸和制造工艺等,然后进行结构分析,最后在力学分析的基础上校验其可行或不可行。在这样的设计程序中,结构分析只起到一种保证安全可行的校核作用。这样设计出来的结构难免会出现结构复杂,重量过大,甚至结构不太合理的情况,既浪费了材料又增加了加工工艺。随着有限元分析技术的快速发展,利用数值模拟技术对结构进行优化设计,可以在工程系统内合理分配设计资源,充分发挥材料的抗力,节省材料用量,使结构更加合理。本文基于有限元分析软件ANSYS,对EP181组块短抬梁结构在建造、滚装运输不同工况下进行计算分析,依据计算分析结果,在保证结构强度和变形的情况下,对该抬梁结构进一步优化,并对优化前后抬梁结构进行对比分析得出相关结论。

Abstract: According to the traditional structure design, the initial solution is always provided according to the experience, including the overall layout, material selection, structure size and manufacturing process, etc. Then do the structure analysis, and check its feasible based on mechanics analysis. In such a design program, structural analysis only serves as a safe and feasible check function. Consequently, the structure will be complicated, overweight and even unreasonable, which would waste materials and increase the difficulty of fabrication. With the rapid development of finite element analysis technology, the use of numerical simulation technology for optimal design of structure can improve the distribution of design resource and the resistance of the material, saves the material consumption and make the structure more reasonable. Based on the finite element analysis software ANSYS, the conveying frame of EP18-1 topside was modeled and simulation in the construction, transportation and loadout conditions. According to the results of calculation and analysis, the structure was optimized on the premise of guaranteeing the structural and deformation, and then do the comparative analysis.

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