Results 41 to 50 of about 277 (160)

Loosened Nut Detection in Rigid Catenary Systems Based on Progressive Classification Algorithm

Chengshi guidao jiaotong yanjiu
[Objective] In response to the challenges posed by the diverse states and complex imaging conditions for nuts in real inspection environments， it is aimed to achieve automated detection of loosened nuts in rigid catenary systems， thereby improving ...
ZHANG Cheng
doaj   +1 more source

Dynamic performance analysis of different spans in rigid catenary

Journal of Physics: Conference Series
Abstract Utilizing a rigid catenary overhead line in long tunnels can reduce initial investment and lower subsequent operational and maintenance costs. To improve the stability of the contact force between the pantograph and the catenary, an equivalent beam element for the rigid catenary is established, and the differential equation for ...
Jianlong Guo, Ying Wang, Chenyv Li, Yixuan Wang   +3 more
openaire   +1 more source

A Design of an Axisymmetric Roof With a Horizontal Rotation Axis

Studies in Applied Mathematics, Volume 156, Issue 1, January 2026.
ABSTRACT This research proposes a novel roof design whose shape follows the mathematical model of an ideal hanging surface. The resulting roof is a surface of revolution, but its rotation axis is horizontal, which challenges conventional intuition because the axis is perpendicular to the direction of gravity.
Rafael López
wiley   +1 more source

An experimental study of a circular cylinder's two-degree-of-freedom motion induced by vortex

International Journal of Naval Architecture and Ocean Engineering, 2016
This paper presents results of an experimental investigation of vortex-induced vibration (VIV) of a flexibly mounted and rigid cylinder with two-degrees-of-freedom with respect to varying ratio of in-line natural frequency to cross-flow natural frequency,
Shin-Woong Kim, Seung-Jae Lee, Cheol-Young Park, Donghoon Kang   +3 more
doaj   +1 more source

Research Status of Substation Vulnerability Under the Coupling Effect of Earthquake and Strong Wind

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
With the progressive advancement of China’s power industry toward higher voltage levels and larger capacity, substations have become critical infrastructures whose resilience to natural disasters requires urgent enhancement. In particular, under the coupled effects of multiple hazards such as earthquakes and strong winds, the optimization of substation
Yihua Gao, Hong Liu, Yijie Wang, Bo Wen, Jiajun Fu, Yi Shan   +5 more
wiley   +1 more source

Preliminary Study on an Integrated System Composed of a Floating Offshore Wind Turbine and an Octagonal Fishing Cage

Journal of Marine Science and Engineering, 2022
To maximize the utilization of ocean resources, shorten the return period of investment and directly supply energy to the fishing cage, this paper performs a preliminary study for a state-of-the-art concept integrating a floating offshore wind turbine ...
Chenglin Zhang, Jincheng Xu, Jianjun Shan, Andong Liu, Mingchao Cui, Huang Liu, Chongwu Guan, Shuangyi Xie   +7 more
doaj   +1 more source

TWO-NODE CATENARY CABLE ELEMENT WITH RIGID-END EFFECT AND CABLE SHAPE ANALYSIS

International Journal of Structural Stability and Dynamics, 2011
The effect of rigid ends is considered in the formulation of a general two-node cable element for the analysis of cable-supported structures. The stiffness matrix of the catenary cable element was derived as the inverse of the flexibility matrix, with allowances for self-weight and pretension effects.
Yang, Y.B., Tsay, Jiunn-Yin
openaire   +3 more sources

Evaluating Different Approaches for Modelling Rotor Aero‐Servo‐Dynamics in Frequency‐Domain Analysis of Floating Wind Turbines

Wind Energy, Volume 28, Issue 11, November 2025.
ABSTRACT Computationally efficient frequency‐domain models can play a very important role in facilitating conceptual design optimization of floating wind turbines (FWTs). However, achieving sufficient accuracy in such models is challenging due to the nonlinear variation of the aerodynamic loads, particularly the interaction between the floating ...
Serag‐Eldin Abdelmoteleb, Erin E. Bachynski‐Polić   +1 more
wiley   +1 more source

Dynamic Response of Multiconnected Floating Solar Panel Systems with Vertical Cylinders

Journal of Marine Science and Engineering, 2022
In this study, the dynamic response of a multiconnected floating solar panel system with a vertical pontoon were studied under various scenarios. First, a floating solar panel pontoon is modeled by combining nine single-unit vertical cylinders (arranged ...
Jihun Song, Joonseob Kim, Jeonghwa Lee, Seungjun Kim, Woochul Chung   +4 more
doaj   +1 more source

A study on the dynamic response of the double pantograph interaction with rigid catenary

Engineering Structures
Funding for open access charge: Universidad de Málaga ...
Simarro-Vega, Montserrat, Postigo-Pozo, Sergio, Reyes, P., Luque, R. J., Baćić, P. V., Castillo-Aguilar, Juan Jesús   +5 more
openaire   +2 more sources