نتایج جستجو برای: cable vibration

تعداد نتایج: 62469  

2014
Li Tian Yanming Wang Zhenhua Yi Hui Qian

A parametric study of nonlinear seismic response analysis of transmission line structures subjected to earthquake loading is studied in this paper. The transmission lines are modeled by cable element which accounts for the nonlinearity of the cable based on a real project. Nonuniform ground motions are generated using a stochastic approach based on random vibration analysis. The effects of mult...

2010
Sjoerd W. Rienstra

The weakly nonlinear in-plane free vibrations of a single suspended cable, or a coupled system of suspended cables, may be classified as gravity modes (no tension variations to leading order) and elasto-gravity modes (tension and vertical displacement equally important). The gravity mode (probably the most common type of vibration of relatively inelastic spans) does not exist for particular val...

2010
Soojin Cho Hongki Jo Shinae Jang Jongwoong Park Hyung-Jo Jung Chung-Bang Yun Billie F. Spencer Ju-Won Seo

This paper analyses the data collected from the 2 Jindo Bridge, a cable-stayed bridge in Korea that is a structural health monitoring (SHM) international test bed for advanced wireless smart sensors network (WSSN) technology. The SHM system consists of a total of 70 wireless smart sensor nodes deployed underneath of the deck, on the pylons, and on the cables to capture the vibration of the brid...

2018
Xianshu Jiang

External dampers and cross-ties are commonly used to control vibrations of stay cables on cable-stayed bridges. While dampers contribute directly to the structural damping of the attached cables, cross-ties mainly help to increase the stiffness of the connected cable system. The idea of incorporating cross-ties with dampers has also been attempted in a few recent applications to benefit from th...

Ali Asghar Atai Kave Ebrahimi Masoud Shariat Panahi

Cables have always been under consideration as a structural element because of important features such as large strength to weight ratios and long spans. Their equilibrium analysis is an important issue in this regard. But this analysis involves highly nonlinear equations arising from large deformations and material nonlinearity. Different methods have been under use for numerical analysis of s...

Journal: :international journal of advanced design and manufacturing technology 0
moharam habibnejad korayem iust m. jalali h. tourajizadeh

this paper proposes a control strategy for a cable-suspended robot based on sliding mode approach (smc) which is faced to external disturbances and parametric uncertainties. this control algorithm is based on lyapunov technique which is able to provide the stability of the end-effecter during tracking a desired path with an acceptable precision. the main contribution of the paper is to calculat...

Journal: :EURASIP Journal on Advances in Signal Processing 2023

Abstract As the main electrical equipment of offshore power grids, optical fiber composite submarine cables undertake task transmission and data communication. In order to ensure proper functioning cable, it is necessary analyze working state identify fault event. This paper proposes a detection method for cables, that is, VMD self-attention-based Bi-LSTM model. First, we use ANSYS software gen...

Journal: :Mathematical and computational applications 2022

This paper proposes an efficient numerical technique for simulating hybrid fiber-reinforced polymer (FRP) bridge systems. An integrated finite strip method (IFSM) is proposed to evaluate the free vibration performance of cable-stayed FRP bridges. The structural ultra-long span (ULSCSB) totally different than steel and concrete structures due complexity mechanical behavior deck. Herein, anisotro...

Journal: :Frontiers in Built Environment 2022

In the maintenance of cable structures, such as cable-stayed bridges, safety is assessed based on tension. Japan, tension generally estimated from cable’s natural frequencies using higher-order vibration method. recent years, dampers have been installed onto cables to suppress aerodynamic vibrations. Because damper changes frequencies, removed measure and estimate without a damper, then reinsta...

Journal: :Applied sciences 2021

The vibration serviceability of footbridges has evolved from the adoption a single pedestrian crossing in resonance condition to load cases which several pedestrians cross structure simultaneously. However, spite this improvement, continue be considered as applied loads codes practice. Recent research pointed out that modeling dynamic systems is step further search for more realistic design app...

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