Volume 38, Number 2, April 2020
|Page(s)||451 - 457|
|Published online||17 July 2020|
An Exact Dynamic Analysis Method for Shallow Sagged Cables
School of Life Science, Northwestern Polytechnical University, Xi'an 710072, China
2 School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an 710129, China
3 Inner Mongolian Transportation Design & Research Institute Co, Ltd, Hohhot 010000, China
4 School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
With the increase of the span and height of modern engineering structures, the design complexity of the cable structure is constantly increasing, whose dynamic problem has become the key to structural design, performance monitoring and maintenance, and vibration control. Therefore, it is necessary to study and develop a new dynamic analysis theory for complex cable system with higher calculation accuracy and efficiency to meet the requirements of exact analysis of engineering structures. In view of this, a novel dynamic analysis method for shallow sagged cable system is proposed in this paper based on the dynamic stiffness method. Since the derivation process is given in analytical form, the calculation accuracy and efficiency are promoted greatly. The numerical cases are used to verify the accuracy of the proposed dynamic analysis method, meanwhile, the simulation results show that the proposed method can overcome the "root missing" phenomenon when solving the frequency equation by the existing analytical method.
Key words: cable structure system / shallow sag / dynamic analysis / dynamic stiffness method / frequency equation / simulation
关键字 : 索缆系统 / 小垂度 / 动力分析 / 动力刚度法 / 频率方程
© 2019 Journal of Northwestern Polytechnical University. All rights reserved.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.