Increased accuracy by using dynamic finite element method in the constrain-surface stereolithography system

2003 ◽  
Vol 140 (1-3) ◽  
pp. 191-196 ◽  
Author(s):  
You-Min Huang ◽  
Jeng-Ywen Jeng ◽  
Cho-Pei Jiang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Finite Element ◽  
Element Method

Effect of Copper Wire Placement Speed Analysis on Actuator Arm by Finite Element

2014 ◽  
Vol 931-932 ◽  
pp. 994-998
Author(s):  
Rangsan Wannapop ◽  
Thira Jearsiripongkul ◽  
Thawatchai Boonluang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Computer Program ◽  
3D Model ◽  
Copper Wire ◽  
Dynamic Finite Element ◽  
Effect Of Copper ◽  
Explicit Dynamic ◽  
Automatic Loading ◽  
Element Method

This research represents a design and analysis of Automatic loading copper wire machine for the actuator arm (ALCM). The process of copper wire placement on a single actuator arm type compensates human workers. In this research, copper wire placement set is made as a 3D model by computer program before undergoes arrangement analysis via explicit dynamic finite element method to study a suitable speed for copper wire placing. It is considered by characteristics of copper wire after placed and failures occurred during the process that will define suitable speed of motor rotation. The suitable speed is corresponding to copper wire characteristic as preferred, prevent copper wire fracture and time reduction compare to human work.

Study on Mechanical Properties of the Corrugated Waist Rail with the Dynamic Finite Element Method

2014 ◽  
Vol 898 ◽  
pp. 209-212
Author(s):  
Jin Hong Ma ◽  
Shen Bai Zheng ◽  
Bin Tao
Keyword(s):  
Mechanical Properties ◽  
Finite Element Method ◽  
Finite Element ◽  
Comparative Study ◽  
Special Kind ◽  
Lateral Load ◽  
Finite Element Code ◽  
Contact Behavior ◽  
Dynamic Finite Element ◽  
Element Method

The corrugated waist rail has been successfully rolled in the Mill Research Institute of Yanshan University. It is necessary to conduct a comparative study on the mechanical properties of this special kind of rail with that of the ordinary rail. ANSYS/LS-DYNA, the finite element code, is used to simulate the contact behavior of wheel and rail. The study aims to investigate the influences of axle and lateral load on the stresses and displacement of the rail. It draws a conclusion that the mechanical properties of the corrugated waist rail is superior to that of the ordinary rail. It also provides a method and useful data for the further research on fatigue and wear of corrugated waist rail.

Stability analysis of convection–diffusion equations of different finite-element spaces at discrete times

2019 ◽  
Vol 33 (28) ◽  
pp. 1950330
Author(s):  
Saviour W. Akuamoah ◽  
Aly R. Seadawy ◽  
Dianchen Lu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Diffusion Problem ◽  
Current Layer ◽  
Element Space ◽  
Time Layer ◽  
Spatial Region ◽  
Dynamic Finite Element ◽  
The Stability ◽  
Element Method

The convection-controlled diffusion problem is hyperbolic in nature and its solutions tend to have numerical shocks. To solve the problem of time dependence, it is common to use finite-element method in the spatial region, while the algorithm proposed in the past with finite differential procedure is mostly limited to the fixed finite-element grid of the spatial region. We often need to use different finite-element spaces at different times, such as the spread of flame, oil and water frontier problems; so many mathematicians and engineers have set their sights on the use of dynamic finite-element space, but also put across a lot of dynamic finite-element methods in giving the general parabola problem of the variable-mesh finite-element method. The principal purpose of this paper is to adopt different spatial grids for different time layers, and project the approximate solution of the previous time layer to the present time layer to act as the initial value of the current layer to enable us deduce the stability at discrete times.

Analysis of forced vibrations of frameworks by finite element method using dynamic finite element.

2015 ◽  
Vol 2015 (2) ◽  
pp. 93-103 ◽  
Author(s):  
Екатерина Цуканова ◽  
Ekaterina Tsukanova
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Dynamic Stress ◽  
Forced Vibrations ◽  
Structural Elements ◽  
Dynamic Finite Element ◽  
Base Functions ◽  
Deformed State ◽  
Element Method

The analysis of forced vibrations of frameworks using finite element method is considered. The dynamic finite element, the base functions of which represent exact dynamic shapes of structural elements, is used for system discretization. The assessment of errors as a result of classic FEM application is given. The efficiency of application of dynamic finite element for analysis of forced vibrations and dynamic stress-deformed state of structures is shown.

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