Verification of Box Test Model and Calibration of Finite Element Model

2011 ◽  
Vol 2261 (1) ◽  
pp. 171-177 ◽  
Author(s):  
Kane C. Bennett ◽  
Carlton L. Ho ◽  
Hoang Q. Nguyen
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Test Model

Precision Machines: Diagnostics of Vibration Through Modal and Finite Element Analysis

1991 ◽  
Author(s):  
V. Prakash ◽  
R. J. Montague
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Test Model ◽  
Element Analysis ◽  
Dimensional Finite Element ◽  
Structure Correlation ◽  
Three Dimensional Finite Element ◽  
Precision Machines

Abstract This paper presents the diagnostics of the effects of vibration on the precise placement of electronic components in a surface mount assembly process. Experimental Modal Analysis using present day software/hardware as well as a three dimensional finite element model are performed on the machine structure. Correlation between the experiment and finite element model are also performed and the strength of using the finite element model as a test model for contemplating any design alterations are presented.

Analysis of Vibration Mode of Hydraulic Gate Structure

2011 ◽  
Vol 199-200 ◽  
pp. 966-972 ◽  
Author(s):  
Hua Gu ◽  
Gen Hua Yan
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Single Point ◽  
Test Procedure ◽  
Element Model ◽  
Test Model ◽  
Modal Test ◽  
Gate Structure ◽  
Inherent Feature ◽  
Support Excitation

It is generally existed that the vibration problem of hydraulic gate structure during water conservancy project, whose vibratory magnitude is closely related to inherent feature of gate structure and spectrum signature of hydrodynamic loads. In this project, through contrastive analysis of modal test procedure of multi-support excitation and single-point response as well as finite element computational analysis, test model and finite element model of some hydraulic sector gate had been built to indicate the results of modal test were basically close with that of finite element model, the changing frequency being the same. Both of them could truly reflect the dynamic characteristics of gate, which proved it effective that the methods for researching on vibration modes of hydraulic gate adopted and provided important basis for further dynamics research and design optimization.

The Finite Element Analysis of Anti-Seismic Performance for the Plate - Column -Light Steel Structure

2011 ◽  
Vol 368-373 ◽  
pp. 142-145
Author(s):  
Guo Qi Xing
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Steel Structure ◽  
Element Model ◽  
Analysis Data ◽  
Test Model ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Finite Element Model ◽  
Plate Column

The finite element model was established for the test model of the plate - column -light steel structure according to the application of SAP 2000 and the seismic wave was input in the model , through the analysis of earthquake response, the analysis data of the finite element model was close to the results of the test data,so the finite element model was reasonable.

Simulation of Bicycle Helmet Impact Test Based on the CPSC Standard

2012 ◽  
Vol 538-541 ◽  
pp. 744-747
Author(s):  
Tso Liang Teng ◽  
Cho Chung Liang ◽  
Chien Jong Shih ◽  
Van Hai Nguyen
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Impact Test ◽  
Element Model ◽  
Test Model ◽  
Finite Element Analyses ◽  
Bicycle Helmet ◽  
Design Problems ◽  
Physical Testing ◽  
Efficient Alternative

Bike helmets must meet minimum standards of construction and materials design. This paper focuses on assessment of a helmet based on the shock absorbing test of CPSC’s standard. Computer simulation finite element model is an economical and time-efficient alternative to physical testing. By those compelling reasons, a finite element model of helmeted headform is constructed to serve for development of bicycle helmet technologies. This study performs finite element analyses of helmet impact tests using LS-DYNA software. The linear accelerations at center of gravity of the headform are measured in this simulation. This study implies that the numerical method is a practical approach to helmet design problems. Furthermore, the helmet test model proposed here has potential for guiding the future development of helmet technologies.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Torsional Analysis of a Steel Cord-Rubber Tire Belt Structure

1996 ◽  
Vol 24 (4) ◽  
pp. 339-348 ◽  
Author(s):  
R. M. V. Pidaparti
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Structures ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Element Analysis ◽  
Rubber Belt ◽  
Steel Cord ◽  
Torsional Analysis

Abstract A three-dimensional (3D) beam finite element model was developed to investigate the torsional stiffness of a twisted steel-reinforced cord-rubber belt structure. The present 3D beam element takes into account the coupled extension, bending, and twisting deformations characteristic of the complex behavior of cord-rubber composite structures. The extension-twisting coupling due to the twisted nature of the cords was also considered in the finite element model. The results of torsional stiffness obtained from the finite element analysis for twisted cords and the two-ply steel cord-rubber belt structure are compared to the experimental data and other alternate solutions available in the literature. The effects of cord orientation, anisotropy, and rubber core surrounding the twisted cords on the torsional stiffness properties are presented and discussed.

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