Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.
Article type: Research Article
Authors: Li, Kaia | Zhu, Ruib; * | Wang, Zhenguoc | Zhou, Xiaoyuc | Wang, Mingxina | Xu, Siyua | Gong, Yichenga
Affiliations: [a] School of Energy and Mechanical Engineering, Shanghai Electric Power University, Shanghai, China | [b] School of Mathematics and Physics, Shanghai Electric Power University, Shanghai, China | [c] State Grid Zhejiang Electric Power Co. LTD. Research Institute, Hangzhou, Zhejiang, China
Correspondence: [*] Corresponding author: Rui Zhu, College of Mathcmatics and Physics, Shanghai University of Electric Power, Shanghai, China. E-mail: [email protected].
Abstract: The structure of the long-span transmission tower is a typical nonlinear structure with the characteristics of great height, large line span, heavy overall weight and flexible tower body. The current design code only analyzes the traditional tower types, but the analysis of the truss structure of transmission tower is limited. Aiming at improving the design defects of the structure of long-span transmission towers, this paper uses the finite element software APDL to build the three-dimensional finite element model of a long-span transmission tower, to carry out the modal finite element analysis as well as to extract the specific parameters of each modal finite element mode: Modality, Natural frequency of vibration, Periodicity. The results show that the natural vibration period of the main machinery of this type of steel transmission tower is about 0.37–1.37 s; The structure of the long-span transmission tower has certain displacements in six degrees of freedom, in which the value of the X-dimensional displacement is the largest. There are some large displacements and local torsion in the high-order mode, combined with the results of modal analysis, so it is suggested to consider the structural improvement or external reinforcement of the weak parts of the long-span transmission tower.
Keywords: Long-span transmission tower, modeling, modal analysis, APDL
DOI: 10.3233/JCM-226644
Journal: Journal of Computational Methods in Sciences and Engineering, vol. 23, no. 3, pp. 1491-1501, 2023
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
USA
Tel: +1 703 830 6300
Fax: +1 703 830 2300
[email protected]
For editorial issues, like the status of your submitted paper or proposals, write to [email protected]
IOS Press
Nieuwe Hemweg 6B
1013 BG Amsterdam
The Netherlands
Tel: +31 20 688 3355
Fax: +31 20 687 0091
[email protected]
For editorial issues, permissions, book requests, submissions and proceedings, contact the Amsterdam office [email protected]
Inspirees International (China Office)
Ciyunsi Beili 207(CapitaLand), Bld 1, 7-901
100025, Beijing
China
Free service line: 400 661 8717
Fax: +86 10 8446 7947
[email protected]
For editorial issues, like the status of your submitted paper or proposals, write to [email protected]
如果您在出版方面需要帮助或有任何建, 件至: [email protected]