首页> 外文期刊>海洋科学期刊(英文) >A Review of the Calculation Methods of Lifting Capacity in Wind Loads on Ocean Platforms
【24h】

A Review of the Calculation Methods of Lifting Capacity in Wind Loads on Ocean Platforms

机译:海底风力负荷升降能力计算方法综述

获取原文
获取原文并翻译 | 示例
       

摘要

Wind load is a control load that affects the safety of structures in the design of ocean platforms. It has not only direct and powerful effects that may cause structure resonance but also has indirect effects causing waves or currents in the ocean. By analyzing the domestic and international norms, this study presents a review of calculation methods of wind load on ocean platforms, which belongs to large-scale non-entity structure used in the open sea while surrounding wind has no fixed direction. Current computations according to the norms are not accurate, which even not takes the force of the wind against the surface perpendicular to the structure into consideration. Additionally, this study also introduces and compares the lift model of platforms based on different theories, such as vortex-excitation and vibration, engineering structure dy style="font-family:Verdana;font-size:12px;">namics, gas flow pressure theory, analyzing their applicability, advantages, and disadvantages. This paper analyzes the limitations and applicable conditions of the existing calculation method itself, such as the lift model is suitable for the existence of stable vortex wake;the calculation method of the structural dynamics of marine engineering must be combined with the wind tunnel test and consider the mistakes caused by the position relationship;the numerical simulation method is accurate but tedious. This study provides an insight into the calculation methods of lift in designing ocean platforms, including the style="letter-spacing:0.1pt;font-family:Verdana;font-size:12px;">finite element method for simulating fluid force and updating formulas in style="font-family:Verdana;font-size:12px;"> Chinese norms.
机译:风负荷是一种控制负载,影响了海洋平台设计中的结构安全。它不仅可能导致结构共振的直接和强大的效果,而且具有导致海洋中的波浪或电流的间接影响。通过分析国内和国际规范,本研究介绍了海底风平台上风负荷计算方法的综述,属于海洋中使用的大规模非实体结构,而周围风无固定方向。根据规范的电流计算不准确,这甚至不考虑垂直于结构的表面的力。此外,本研究还介绍并比较了基于不同理论的平台升力模型,例如涡旋激励和振动,工程结构dy <跨度=“FONT-Family:Verdana;字体大小:12px; “> Namics,气体流量压力理论,分析其适用性,优点和缺点。本文分析了现有计算方法本身的限制和适用条件,例如升力模型适用于稳定涡旋唤醒;海洋工程结构动态的计算方法必须与风洞测试结合,考虑由地位关系引起的错误;数值模拟方法准确但乏味。本研究介绍了在设计海洋平台上的升力计算方法,包括 style =“字母间距:0.1pt; font-family:verdana; font-size:12px;”>有限元模拟流体力和更新公式中的方法 <跨度样式=“font-family:verdana;字体大小:12px;”>中文规范。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号