Three‐dimensional transmission line model for flux conduction in thin‐film recording heads

1990 ◽  
Vol 67 (9) ◽  
pp. 4863-4865 ◽  
Author(s):  
M. Mallary ◽  
A. Torabi ◽  
S. Batra
Keyword(s):  
Thin Film ◽  
Transmission Line ◽  
Three Dimensional ◽  
Transmission Line Model ◽  
Line Model ◽  
Recording Heads

scholarly journals Investigation and Development of a Three-Dimensional Transmission Tower-Line System Model Using Nonlinear Truss and Elastic Catenary Elements for Wind Loading Dynamic Simulation

2021 ◽  
Vol 2021 ◽  
pp. 1-29
Author(s):  
Xiao Zhu ◽  
Ge Ou
Keyword(s):  
Transmission Line ◽  
Open Source ◽  
Three Dimensional ◽  
Initial Strain ◽  
Wind Loading ◽  
Transmission Line Model ◽  
Transmission Tower ◽  
Line Model ◽  
Line System ◽  
Truss Element

The accuracy of transmission tower-line system simulation is highly impacted by the transmission line model and its coupling with the tower. Owing to the high geometry nonlinearity of the transmission line and the complexity of the wind loading, such analysis is often conducted in the commercial software. In most commercial software packages, nonlinear truss element is used for cable modeling, whereas the initial strain condition of the nonlinear truss under gravity loading is not directly available. Elastic catenary element establishes an analytical formulation for cable structure under distributed loading; however, the nonlinear iteration to reach convergence can be computational expensive. To derive an optimal transmission tower-line model solution with high fidelity and computational efficiency, an open-source three-dimensional model is developed. Nonlinear truss element and elastic catenary element are considered in the model development. The results of the study imply that both elements are suitable for the transmission line model; nevertheless, the initial strain in nonlinear truss element largely impacts the model accuracy and should be calibrated from the elastic catenary model. To cross-validate the developed models on the coupled transmission tower and line, a one-span eight-line system is modeled with different elements and compared with several state-of-the-art commercial packages. The results indicate that the displacement time-history root-mean-square error (RMSE) of the open-source transmission tower-line model is less than 1 % and with a 66 % computational time reduction compared with the ANSYS model. The application of the open-source package transmission tower-line model on extreme wind speed considering the aerodynamic damping is further implemented.

Trap Profiling an In-Ga-Zn-O Thin Film Transistor by Using a Transmission Line Model Incorporating the Conductance Method

2018 ◽  
Vol 73 (5) ◽  
pp. 612-615
Author(s):  
Manh-Cuong Nguyen ◽  
An Hoang-Thuy Nguyen ◽  
Hyungmin Ji ◽  
Sujin Choi ◽  
Jonggyu Cheon ◽  
...  
Keyword(s):  
Thin Film ◽  
Transmission Line ◽  
Thin Film Transistor ◽  
Transmission Line Model ◽  
Line Model ◽  
Conductance Method
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