Finite Element Analysis Of An Axially Moving Beam, Part II: Stability Analysis

1994 ◽  
Vol 178 (4) ◽  
pp. 455-481 ◽  
Author(s):  
M. Stylianou ◽  
B. Tabarrok
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stability Analysis ◽  
Axially Moving Beam ◽  
Element Analysis ◽  
Moving Beam ◽  
Axially Moving

Finite Element Analysis for the Stiffness and the Buckling of Corrugated Tubes in Heat Exchanger

2012 ◽  
Vol 468-471 ◽  
pp. 1675-1680 ◽  
Author(s):  
Xiao Jing Wang ◽  
Zhi Min Wang ◽  
Nian Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stability Analysis ◽  
Heat Exchanger ◽  
Heat Exchangers ◽  
External Pressure ◽  
Element Analysis ◽  
Value Analysis ◽  
Compressive Pressure ◽  
The Stability

Corrugated tubes in a heat exchanger are analyzed by using the FEA methods. And the formula how to compute single wave’s rigidity is obtained. Besides, methods of analyzing the stability of corrugated tubes under internal compressive pressure and external pressure are proposed which include characteristic value analysis and non-linear stability analysis, thus providing theory basis for the stability research of heat exchangers.

scholarly journals Study on Multi-DOF Actuator for Improving Power Density

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4204
Author(s):  
Sooyoung Cho ◽  
Ho Joon Lee ◽  
Ju Lee
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stability Analysis ◽  
Low Power ◽  
Power Density ◽  
Eddy Current ◽  
Pitch Angle ◽  
Eddy Current Loss ◽  
Element Analysis ◽  
Output Characteristics

This study focuses on improving the power density of a spherical multi-degree-of-freedom (multi-DOF) actuator. A spherical multi-DOF actuator that can operate in three DOFs is designed. The actuator features a double air gap to reduce eddy current loss. However, a multi-DOF actuator driven by a single actuator exhibits low power density. Therefore, a Halbach magnet array is applied to improve the power density of a spherical multi-DOF actuator, and its output characteristics are compared with those of an existing spherical multi-DOF actuator via finite element analysis. Additionally, the output characteristics are analyzed based on changes in the coil pitch angle and magneto-motive force of the rotating winding. Furthermore, it is necessary for a spherical multi-DOF actuator to move to the command position. Hence, a stability analysis is performed to ensure that the spherical multi-DOF actuator is stably driven based on the command position.

Study on 3-D Finite Element Analysis of Earth Dam

2012 ◽  
Vol 433-440 ◽  
pp. 3489-3494
Author(s):  
Ying Bin Kang ◽  
Ying Bin Kang ◽  
Hui Xia Bian ◽  
Jian Wei Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Stability Analysis ◽  
Element Model ◽  
Earth Dam ◽  
Analysis Model ◽  
Element Analysis ◽  
The Earth ◽  
Practical Project

In this paper, the characteristics of the two software ANSYS and FLAC are analyzed. Using the powerful preprocessing capabilities of ANSYS, the earth dam is analyzed by finite element method. And then, the analysis model by the FISH language is imported into FLAC, with the constitutive model and the completed finite element model, the model analysis and processing are studied. Practical project is dam seepage and stability analysis to verify the reliability of the method.

Finite Element Analysis on Mechanical Behavior of Column Underpinning Joints for Building Moving

2011 ◽  
Vol 255-260 ◽  
pp. 1974-1978 ◽  
Author(s):  
Qing Xia Yue ◽  
Xin Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Behavior ◽  
Contact Surface ◽  
Shear Failure ◽  
Influential Factors ◽  
Frame Structure ◽  
Element Analysis ◽  
Double Beam ◽  
Moving Beam

The building moving has more than 100 years’ history. In the building moving, the design of the underpinning joints is one of the key problems. As to the frame structure, the most widely used method is the double beam underpinning system. Our research group has conduct 16 underpinning joints tests considering the different influential factors to study the mechanical performance of it. This paper first introduces the experiment briefly. And then make finite element analysis on the mechanical behavior of the column underpinning joints using the software ABAQUS as the platform. In the finite element analysis, the solid element is adopted and the master-slave contact surface is used to simulate the interaction between the column and the underpinning beams. The results show that the failure of the moving-beam is ahead of the coupling-beam and the bending-shear failure occurred in the moving-beam. As to the interface between the column and the beam, the lower part of the contact failed and the gaps can be seen. From the analysis results, the contact stress on the column is not uniformly distributed and larger in the upper part of the contact surface which is accord to the test results.

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