Results 231 to 240 of about 481,513 (273)

Constructing pulley system to raise bells : version 02

, 2017
Burrell, Horace H. (1894-1936)
core  

Constructing pulley system to raise bells : version 01

, 2017
Burrell, Horace H. (1894-1936)
core  

Effects of Tower-Line Coupling on Seismic Vibration Control of Large Crossing Transmission Tower-Line System with TMD

Advanced Materials Research, 2011
At present, the effect of tower-line coupling is neglected in seismic vibration control with TMD for transmission tower-line system. However, for large crossing transmission tower-line system(LCTL), the neglect can affect the performance of TMD. In this study, a typical FEM model of LCTL is established.
Gang Wu, Chang Hai Zhai, Shuang Li
openaire   +2 more sources

Galloping of Transmission Tower-Line System and Anti-Galloping Research

Applied Mechanics and Materials, 2010
A nonlinear finite element model of transmission tower-line coupling system including transmissions, towers and insulators is established based on ANSYS in this paper. The restarting technology is proposed to solve the vertical, horizontal and torsional galloping of the transmission conductors.
Li Li, Wei Jiang, Hua Jin Cao
openaire   +2 more sources

Strain Rate Effect on Transmission Tower-Line System under Earthquake

Advanced Materials Research, 2011
Using ABAQUS software, three dimensional finite element model of a transmission tower-line system is created. Nonlinear seismic responses under three seismic records with and without strain rate effect are studied. The results show that the strain rate effect on the transmission tower-line system is more obvious with an increase in intensity of the ...
Wen Ming Wang, Hong Nan Li, Guo Huan Liu, Li Tian   +3 more
openaire   +2 more sources

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A method for analyzing stability of tower-line system under strong winds

Advances in Engineering Software, 2019
Abstract Typhoon is a kind of bad weather affecting the safety of overhead transmission lines seriously. In recent years, mechanical failures, such as tower collapse and strand breakage from strong winds, have frequently occurred in coastal typhoon-prone areas in China.
Bo He, Mingxi Zhao, Wentao Feng, Yaping Xiu, Yu Wang, Lijun Feng, Yongjian Qin, Chukun Wang   +7 more
openaire   +3 more sources

DYNAMIC RESPONSES OF TRANSMISSION TOWER-LINE SYSTEM UNDER ICE SHEDDING

International Journal of Structural Stability and Dynamics, 2010
Ice shedding from conductors may easily induce electrical and mechanical accidents, which cause a serious threat to the safe operation of transmission lines. In this paper, a 3D finite element model of tower-conductor-ground wire-insulator system was established in ANSYS, and the dynamic responses of ice shedding under different cases were analyzed ...
FENGLI YANG, JINGBO YANG, JUNKE HAN, DONGJIE FU   +3 more
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Dynamic Response of Conductor Breakage for Oxytropis Transmission Tower-Line System

Applied Mechanics and Materials, 2010
Dynamic response of conductor breakage is analyzed on guyed oxytropis transmission tower-line system of 500KV 5291 JinJiang-Zhenjiang lines. Considering unbalanced tension, finite element method is presented. Result of the transient analysis shows that the vibration of tower-line system happens after conductor breakage.
Ran Li, Qiang Gao
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Wind fragility assessment and sensitivity analysis for a transmission tower-line system

Journal of Wind Engineering and Industrial Aerodynamics, 2022
Jia Wang, Hong-Nan Li, Xing Fu, Zhi-Qian Dong, Zhi-Guo Sun   +4 more
openaire   +3 more sources