scholarly journals Parametrication of numerical simulation of drying process in atypicall condenzation lumber kiln

2004 ◽  
Vol 52 (1) ◽  
pp. 169-174
Author(s):  
Jiří Zejda ◽  
Petr Koňas
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Cross Section ◽  
3D Models ◽  
Computing System ◽  
Moisture Distribution ◽  
The Finite Element Method ◽  
Drying Process ◽  
Flow Temperature ◽  
2D And 3D

This work deal with modelling of the process of drying, air flow, temperature and moisture distribution in a condensation lumber kiln. This model was made and solved in the computing system ANSYS with the use of the finite element method. There are comparationes of the 2D and 3D models, shape of wood stacks and variability of their parameters (height, width, length, cross section) in the work. The flow velocity and orientation, pressure and temperature field were observed.

scholarly journals Numerical Simulation of Stresses in Thin-rimmed Spur Gears with Keyway

10.14311/480 ◽  
2003 ◽  
Vol 43 (5) ◽  
Author(s):  
B. Brůžek ◽  
E. Leidich
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Mutual Influence ◽  
Notch Root ◽  
Spur Gear ◽  
Fe Analysis ◽  
Spur Gears ◽  
The Finite Element Method ◽  
2D And 3D

This paper contains an investigation of the key on a stress distribution in a thin-rimmed spur gear. A stress analysis was carried out by means of the Finite Element Method (FEM). The 2D-FE analysis has helped to find the influence of turning the gearing towards the keyway on the stress in the loaded root of the tooth and in the keyway. 2D and 3D numerical analysis has been used to find mutual influence of every single notch (root of tooth and keyway), influence of thickness of the hub, length of the key and the form of loading. Verification has been carried out through experimental method.

scholarly journals Temperature, moisture and stress fields in deck in the course of drying process in atypical chamber condensing sawn wood kiln

2004 ◽  
Vol 52 (1) ◽  
pp. 159-168
Author(s):  
Jan Tippner ◽  
Petr Koňas
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Temperature Distribution ◽  
Boundary Conditions ◽  
Parametric Model ◽  
Moisture Distribution ◽  
Stress Fields ◽  
Drying Process ◽  
Model Pile

Common parametric model of sawn wood, geometry and finite element and physical parametric model pile sawn wood and its immediate airy environment was introduced. By the help of numerical simulation with Finite Element Method utilization the description of temperature distribution, dampness and stress in wood, in dependence on temperature and moisture distribution in airy environment of sawn wood kiln was included. Discussion about problem of design model, mesh refinement and definition boundary conditions was opened. Results of simulations make possible to propound the optimization of drying process. Direction of next investigation was outlined too.

The study of the elastic deformation of a flexible wheel by a cam wave generator

2020 ◽  
Vol 65 (1) ◽  
pp. 51-58
Author(s):  
Sava Ianici
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Elastic Deformation ◽  
Theoretical Study ◽  
Elastic Field ◽  
The Finite Element Method ◽  
Elastic Deformations ◽  
Wave Generator ◽  
Two Stages

The paper presents the results of research on the study of the elastic deformation of a flexible wheel from a double harmonic transmission, under the action of a cam wave generator. Knowing exactly how the flexible wheel is deformed is important in correctly establishing the geometric parameters of the wheels teeth, allowing a better understanding and appreciation of the specific conditions of harmonic gearings in the two stages of the transmission. The veracity of the results of this theoretical study on the calculation of elastic deformations and displacements of points located on the average fiber of the flexible wheel was subsequently verified and confirmed by numerical simulation of the flexible wheel, in the elastic field, using the finite element method from SolidWorks Simulation.

Investigation of Strength in G4-73 Type Centrifugal Fan Impeller

2011 ◽  
Vol 383-390 ◽  
pp. 5669-5673
Author(s):  
Song Ling Wang ◽  
Zhe Sun ◽  
Zheng Ren Wu
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Calculation Result ◽  
Working Condition ◽  
Equivalent Stress ◽  
Centrifugal Fan ◽  
The Finite Element Method ◽  
Total Displacement ◽  
Maximum Equivalent Stress

For the large centrifugal fan impeller, its working condition generally is bad, and its geometry generally is complex. So its displacements and stresses distribution are also complex. In this paper, we can obtain the fan impeller’s displacements and stresses distribution accurately through numerical simulation in G4-73 type centrifugal fan impeller using the finite element method software ANSYS. The calculation result shows that the maximum total displacement of the impeller is m, it occurs on the position of the half of the blade near the outlet of the impeller; and the maximum equivalent stress of the impeller is 193 MPa, it occurs on the contacted position of the blade and the shroud near inlet of the impeller. Furthermore, check the impeller strength, the result shows that the strength of the impeller can meet the requirement.

Sign in / Sign up

Export Citation Format

Share Document