An Integrated Approach for Numerical Simulation of Full Vehicle Behaviour During Transient Dynamic Maneuvers on Arbitrary Obstacles and Road Surfaces

2003 ◽  
Author(s):  
E. Duni ◽  
G. Monfrino ◽  
R. Saponaro ◽  
M. Caudano ◽  
F. Urbinati ◽  
...  
Keyword(s):  
Finite Element ◽  
Dynamic Simulation ◽  
Model Development ◽  
Integrated Approach ◽  
Element Model ◽  
Experimental Comparison ◽  
Transient Dynamic Analysis ◽  
Transient Dynamic ◽  
Full Vehicle ◽  
Stage Of Development

This work describes a numerical methodology based on the finite element method used for the transient dynamic simulation of the full vehicle rolling on different kind of obstacles. Some issues related to the tire finite element model development and its validation, by numerical-experimental comparison, have been discussed. The strategy to combine the static simulations such as the tire inflating, the vehicle weight application and suspension pre loading, with transient dynamic analysis of the car rolling over the obstacle has been chosen. The methodology, based on integration of Abaqus Implicit and Explicit codes, has been successfully applied for the dynamic simulation of Fiat Punto car passing over comfort and pothole obstacle; it is in a good stage of development for a bump obstacle (misuse airbag test).

Transient Dynamic Analysis of Maglev Linear Feed Unit

2011 ◽  
Vol 317-319 ◽  
pp. 405-409
Author(s):  
An Dong Jiang ◽  
Jiang Jin ◽  
Su Yang Ma ◽  
Zheng Peng Xia ◽  
Ping Liao
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Magnetic Levitation ◽  
Element Model ◽  
Design Stage ◽  
Transient Dynamic Analysis ◽  
Element Analysis ◽  
Forecast Performance ◽  
Transient Dynamic ◽  
Feed Unit

Abstract. The magnetic levitation linear feed unit is a new type of machine features. In machining, the tool and workpiece interaction force will be delivered to the table and make the deformation, resulting in processing errors of machine tools, machining of precision and surface quality. In this paper we established three-dimensional finite element model of the table of feed unit, use the finite element analysis software ANSYS to analysis of the transient dynamic analysis of the pre-designed table and improve the structure of the table at the design stage and forecast performance of the table and provide a theoretical basis for structure optimization.

scholarly journals Dynamic Analysis of Gear and Rack Transmission System

2014 ◽  
Vol 8 (1) ◽  
pp. 662-667
Author(s):  
Xiao Yanjun ◽  
He Lihu ◽  
Zhu Jiayu ◽  
Xiao Yanchun
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
Bending Strength ◽  
Natural Frequencies ◽  
Equivalent Stress ◽  
Element Model ◽  
Transmission System ◽  
Transient Dynamic Analysis ◽  
Element Analysis ◽  
Transient Dynamic

This paper firstly established a three-dimensional modal of gear and rack transmission system. By using finite element analysis software the model is analyzed and the first six natural frequencies of the gear and rack transmission system are acquired. According to the natural frequencies, actual working speed can be adjusted to avoid resonance. In light of the modal analysis, the transient dynamic finite element model of the gear and rack transmission system is established for the transient dynamic analysis. According to the equivalent stress contour of the gear and rack in contact progress at various times and based on transient dynamic analysis, contact strength and bending strength of the gear are verified and the maximum equivalent stress position is found, providing a theoretical basis for the optimization of the gear and rack.

A Multi-Modality Image Data Collection Protocol for Full Body Finite Element Model Development

2009 ◽  
Author(s):  
F. Scott Gayzik ◽  
Craig A. Hamilton ◽  
Josh C. Tan ◽  
Craig McNally ◽  
Stefan M. Duma ◽  
...  
Keyword(s):  
Finite Element ◽  
Data Collection ◽  
Finite Element Model ◽  
Model Development ◽  
Image Data ◽  
Element Model ◽  
Full Body

Model Development of the Application of Finite Element – Eigenvalue Method to the Determination of Transient Temperature Field in Functionally Graded Materials

2007 ◽  
Vol 18-19 ◽  
pp. 253-261
Author(s):  
John A. Akpobi ◽  
C.O. Edobor
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Functionally Graded Materials ◽  
Model Development ◽  
Element Model ◽  
Steady State Solution ◽  
Functionally Graded ◽  
Transient Temperature ◽  
Graded Materials ◽  
Eigenvalue Method

In this paper, a finite elment-eigenvalue method is formulated to solve the finite element models of time dependent temperature field problems in non-homogeneous materials such as functionally graded materials (FGMs). The method formulates an eigenvalue problem from the original finite element model and proceeds to calculate the associated eigenvectors from which the solution can be obtained. The results obtained highly accurate and are exponential functions of time which when compared with the exact solution tended fast to the steady state solution.

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