Design and processing of a continuous aero-elastic shell model of high-rise flexible structures

Wang Lei; Liu Wei; Fan Xingyan; Zhang Zhenhua; Liang Shuguo

doi:10.11729/syltlx20180152

Volume 33 Issue 5

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Journal of Experiments in Fluid Mechanics > 2019 > 33(5): 98-104. > DOI: 10.11729/syltlx20180152

Wang Lei, Liu Wei, Fan Xingyan, Zhang Zhenhua, Liang Shuguo. Design and processing of a continuous aero-elastic shell model of high-rise flexible structures[J]. Journal of Experiments in Fluid Mechanics, 2019, 33(5): 98-104. DOI: 10.11729/syltlx20180152

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Design and processing of a continuous aero-elastic shell model of high-rise flexible structures

1.
School of Civil Engineering, Henan Polytechnic University, Jiaozuo Henan 454000, China
2.
School of Civil and Building Engineering, Wuhan University, Wuhan 430071, China

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Received Date: September 10, 2018
Revised Date: November 24, 2018

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Abstract

Abstract

The wind tunnel test of the aero-elastic model is an accurate method to assess the wind effect on the high-flexible structures, and the model making is the key point during this process. A novel method to make the continuous aero-elastic shell model is proposed, and the main steps as well as key techniques of the model manufacture are discussed in detail. Firstly, the inner mold is made of gypsum, the outer mold is carved by organic glass, and the gap dimension between the inner and outer mold is precisely designed in this step. After that, the DEVCON glue is injected into the gap. Finally, the inner and outer mold is removed after the glue is cured, and then the aero-elastic model is done. Dynamic test results show that the mass, the damping ratio, the first two order mode shape and the frequency of the realistic structure could be simulated accurately. The making method of this article has the following advantages:low time-consuming, economic, high precision and good versatility. Moreover, this method can be used for the continuous aero-elastic model of high-rise buildings, high-rise flexible chimneys, chemical towers, TV towers, cooling towers and so on. So the making method proposed in this paper can be an important guideline for the similar structures.
- continuous shell aero-elastic model,
- wind tunnel test,
- high-rise flexible chimney,
- model making,
- high-rise flexible structure

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