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Design and structural analysis of a wind fence used for protecting modular data center from high speed wind.

机译：用于保护模块化数据中心免受高速风侵袭的防风罩的设计和结构分析。

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摘要

Various data centers built in an open area are occasionally susceptible to different kinds of natural calamities. Wind, either from any of the sources like hurricane, tornado or storm is one of those ecological dangers with high speed flow. These high speed winds can be responsible for downed power lines, trees and collapsing of buildings as well, the wind may adversely impact a data center's structure. Windbreaker or wind fence is basically used to reduce the high speed of the wind resulting in the protection of structures or objects behind it. Some modular data centers which encounter problems of high speed winds may require such kind of barrier for the protection of their structure and to insure proper operation of the system.;The design of a barrier for such particular application comprises of various parameters such as materials used for barrier, barrier dimensions and moreover the structure of the barrier. Additionally it should also be economical for construction. This paper discusses the design of new barrier for a modular data center application which can reduce wind speed of 44.7 m/s (100 mph) to 9 m/s (20mph) and also to check whether it can withstand such high wind load. The main aim is to design and analyze the barrier for modular data center using different materials which can sustain such high speed winds.;The model of wind fence and the modular data center were created in FloTherm 10.1. The CFD analysis was carried out for two different scenario of wind fence that is Single wall and Split wall. In Single wall configuration, the fence is kept on the ground before the modular data center and in split wall configuration, in which two wind fences, one on the ground and other on the roof before exhaust of datacenter were used. Various parameters such as fence dimensions and porosity were changed to see the effect of wind load on it.;For structural analysis, 3D model of the barrier is designed using PTC Creo Parametric 3.0 and stress analysis performed using ANSYS 16.1. The force from the wind speed is applied as a uniformly distributed load for carrying out structural analysis of the fence. An analysis is then carried out considering all the conditions relevant to the case to obtain optimal design parameters. Stress results obtained through analysis will be compared with yield strength of the material to check for the feasibility of the chosen material. The stress results of cases which consider different perforations of the barrier in the direction of the wind are compared to obtain optimized design parameters for construction of the windbreaker.;The results from analysis of the barrier which include the stress analysis of the barrier and the amount of wind speed reduction will be used to compare different cases. The von-mises stress values should be checked against the permissible strength limit of the chosen material. Finally, multi-design variable optimization is carried out to find the most suitable design of the barrier for modular data center which can withstand such high wind load.
机译：在开放区域中建立的各种数据中心有时会遭受各种自然灾害。来自飓风，龙卷风或暴风雨等任何来源的风都是高速流动的生态危害之一。这些高速风还可能导致电源线，树木和建筑物倒塌，这可能会对数据中心的结构产生不利影响。防风衣或防风栅主要用于降低风速，从而保护其后面的结构或物体。一些遇到高速风的模块化数据中心可能需要使用这种屏障来保护其结构并确保系统的正常运行。用于这种特殊应用的屏障的设计包括各种参数，例如所使用的材料用于屏障，屏障尺寸以及屏障的结构。另外，它对于建造也应该是经济的。本文讨论了用于模块化数据中心应用的新型屏障的设计，该屏障可将风速从44.7 m / s（100 mph）降低到9 m / s（20 mph），并检查其是否能够承受如此高的风载荷。主要目的是使用可以承受这种高速风的不同材料来设计和分析模块化数据中心的屏障。;风栅模型和模块化数据中心是在FloTherm 10.1中创建的。针对风栅栏的两种不同情况进行了CFD分析，即单层墙和分体墙。在单壁配置中，围栏保持在模块化数据中心之前的地面上，而在分壁配置中，其中使用了两个防风栅，一个在地面上，另一个在屋顶上，然后再使用数据中心。更改围栏尺寸和孔隙率等各种参数以查看风荷载对其的影响。；对于结构分析，使用PTC Creo Parametric 3.0设计了屏障的3D模型，并使用ANSYS 16.1执行了应力分析。来自风速的力被施加为均匀分布的载荷，用于进行围栏的结构分析。然后考虑与案例相关的所有条件进行分析以获得最佳设计参数。通过分析获得的应力结果将与材料的屈服强度进行比较，以检查所选材料的可行性。比较考虑了风向不同屏障的情况下的应力结果，以获得用于风衣构造的优化设计参数。屏障分析的结果包括屏障的应力分析和数量风速降低的情况将用于比较不同情况。应根据所选材料的允许强度极限来检查von-mises应力值。最后，进行多设计变量优化，以找到可承受如此高的风荷载的最适合模块化数据中心屏障的设计。

著录项

  • 作者

    Baviskar, Nikhil Dilip.;

  • 作者单位

    The University of Texas at Arlington.;

  • 授予单位 The University of Texas at Arlington.;
  • 学科 Engineering.;Mechanical engineering.
  • 学位 M.S.
  • 年度 2015
  • 页码 71 p.
  • 总页数 71
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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