Aeolian Vibration Dynamic Analysis of Large-Span, Relaxed Antenna Cable Net Based on Finite Particle Method

IF 3.1 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

Buildings Pub Date : 2023-12-30 DOI:10.3390/buildings14010105

Qin Kai, Zhao Fan, Luoyao Zhi, Fang Bin, Chenshang Yuan

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引用次数: 0

Abstract

The large-span, relaxed antenna network is a large deformation flexible structure due to its low pre-tension level of the wires. Its dynamic analysis under a wind load belongs to dynamic and geometric nonlinear problems, which is very complex to accurately calculate and solve. This paper explores the possibility of the finite particle method (FPM) to the aeolian vibration analysis of a large-span, low stress-tensioned antenna cable net. In the FPM, the antenna network structure is discretized into a group of finite particles, where the motions of all particles follow Newton’s second law and can be solved dynamically using a central difference scheme. The effectiveness and applicability of the FPM were verified by comparing the calculation results of the finite element method and FPM. The FPM was used to study the effects of wind speed and the distribution of vibration on the aeolian vibration of antenna cable nets. The results showed that this method is suitable for studying the aeolian vibration of a large-span, low stress-tensioned antenna network and has high computational efficiency and accuracy.

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基于有限粒子法的大跨度松弛天线缆网的风浪振动动态分析

大跨度、松弛的天线网络由于导线的预张力水平较低，属于大变形柔性结构。其在风荷载作用下的动力分析属于动力和几何非线性问题，精确计算和求解非常复杂。本文探讨了用有限粒子法（FPM）对大跨度、低应力张力天线索网进行风化振动分析的可能性。在有限粒子法中，天线网络结构被离散为一组有限粒子，所有粒子的运动都遵循牛顿第二定律，并可使用中心差分方案进行动态求解。通过比较有限元法和 FPM 的计算结果，验证了 FPM 的有效性和适用性。FPM 被用于研究风速和振动分布对天线电缆网风化振动的影响。结果表明，该方法适用于研究大跨度、低应力张力天线网络的风浪振动，具有较高的计算效率和精度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Buildings Multiple-

CiteScore

3.40

自引率

26.30%

发文量

1883

审稿时长

11 weeks

期刊介绍： BUILDINGS content is primarily staff-written and submitted information is evaluated by the editors for its value to the audience. Such information may be used in articles with appropriate attribution to the source. The editorial staff considers information on the following topics: -Issues directed at building owners and facility managers in North America -Issues relevant to existing buildings, including retrofits, maintenance and modernization -Solution-based content, such as tips and tricks -New construction but only with an eye to issues involving maintenance and operation We generally do not review the following topics because these are not relevant to our readers: -Information on the residential market with the exception of multifamily buildings -International news unrelated to the North American market -Real estate market updates or construction updates