scholarly journals THREE-DIMENSIONAL THERMAL MODELING ANALYSIS OF CST MEDIA FOR THE SMALL ION EXCHANGE PROJECT

2011 ◽  
Author(s):  
S. Lee ◽  
W. King
Keyword(s):  
Ion Exchange ◽  
Thermal Modeling ◽  
Three Dimensional ◽  
Modeling Analysis

A novel approach to thermal modeling based on three-dimensional analysis in turning Inconel 718 with round insert

2019 ◽  
Vol 266 ◽  
pp. 588-598 ◽  
Author(s):  
Jian Weng ◽  
Kejia Zhuang ◽  
Cheng Hu ◽  
Dahu Zhu ◽  
Shunsheng Guo ◽  
...  
Keyword(s):  
Dimensional Analysis ◽  
Inconel 718 ◽  
Thermal Modeling ◽  
Three Dimensional ◽  
Novel Approach

scholarly journals Three‐Dimensional Thermal Modeling of Electric Vehicle Batteries

1986 ◽  
Vol 133 (7) ◽  
pp. 1286-1291 ◽  
Author(s):  
Johnsee Lee ◽  
K. W. Choi ◽  
N. P. Yao ◽  
C. C. Christianson
Keyword(s):  
Electric Vehicle ◽  
Thermal Modeling ◽  
Three Dimensional

scholarly journals Three-Dimensional Reconstruction and Thermal Modeling of Observed Loops

Solar Physics ◽  
2020 ◽  
Vol 295 (12) ◽  
Author(s):  
Federico A. Nuevo ◽  
Cecilia Mac Cormack ◽  
Marcelo C. López Fuentes ◽  
Alberto M. Vásquez ◽  
Cristina H. Mandrini
Keyword(s):  
Thermal Modeling ◽  
Three Dimensional ◽  
Three Dimensional Reconstruction ◽  
Dimensional Reconstruction

Underplatform Dampers for Turbine Blades: Theoretical Modeling, Analysis, and Comparison With Experimental Data

1998 ◽  
Vol 123 (4) ◽  
pp. 919-929 ◽  
Author(s):  
K. Y. Sanliturk ◽  
D. J. Ewins ◽  
A. B. Stanbridge
Keyword(s):  
Experimental Data ◽  
Theoretical Model ◽  
Normal Load ◽  
Turbine Blades ◽  
Three Dimensional ◽  
Hysteresis Loops ◽  
Modeling Analysis ◽  
Modes Of Vibration ◽  
Opening And Closing ◽  
Distinct Features

This paper describes a theoretical model for analyzing the dynamic characteristics of wedge-shaped underplatform dampers for turbine blades, with the objective that this model can be used to minimize the need for conducting expensive experiments for optimizing such dampers. The theoretical model presented in the paper has several distinct features to achieve this objective including: (i) it makes use of experimentally measured contact characteristics (hysteresis loops) for description of the basic contact behavior of a given material combination with representative surface finish, (ii) the damper motion between the blade platform locations is determined according to the motion of the platforms, (iii) three-dimensional damper motion is included in the model, and (iv) normal load variation across the contact surfaces during vibration is included, thereby accommodating contact opening and closing during vibration. A dedicated nonlinear vibration analysis program has been developed for this study and predictions have been verified against experimental data obtained from two test rigs. Two cantilever beams were used to simulate turbine blades with real underplatform dampers in the first experiment. The second experiment comprised real turbine blades with real underplatform damper. Correlation of the predictions and the experimental results revealed that the analysis can predict (i) the optimum damping condition, (ii) the amount of response reduction, and (iii) the natural frequency shift caused by friction dampers, all with acceptable accuracy. It has also been shown that the most commonly used underplatform dampers in practice are prone to rolling motion, an effect which reduces the damping in certain modes of vibration usually described as the lower nodal diameter bladed-disk modes.

Sign in / Sign up

Export Citation Format

Share Document