Finite Element Analysis of a Ventilating Box Structure

The "box structure" is a building system which was highly prefabricated and assembled. Taking the "box structure" residence as an example, the static and dynamic performance is discussed and finite element analysis software ANSYS is applied to verify "box structure" design ideas.

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The effect of modal properties of crash box structures with trigger mechanisms towards the crashworthiness by using finite element analysis

JOURNAL OF MECHANICAL ENGINEERING AND SCIENCES ◽

10.15282/jmes.15.3.2021.22.0666 ◽

2021 ◽

Vol 15 (3) ◽

pp. 8459-8468

Author(s):

M.N.A.M. Asri ◽

N.A.Z. Abdullah ◽

Mohd Shahrir Mohd Sani

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Peak Force ◽

Element Analysis ◽

Trigger Mechanism ◽

Modal Properties ◽

Box Structures ◽

Box Structure ◽

Type 3 ◽

Trigger Mechanisms

In the automotive structure, there are different components that utilise aluminium alloy (AA) sheets and it is used widely in the car body-in-white which comprise bumpers and the crash box structure at the front end of the car which specifically designed to withstand the event of collision. As the structures are also experiencing dynamic loading, it were also a concern for the structures to show satisfied modal properties. In this study, the modal properties of the crash box structures are investigated along with the effect of the modal properties towards the crashworthiness behaviour of the structure itself with the approach of finite element analysis. Experimental modal analysis was also done to further validating the finite element analysis of the modal properties. Three different designs of trigger mechanisms are applied towards the crash box structure to observe on both findings. For the connector element, equivalent nodes of both parts of the crash box structures are used. For the results, the correlation from both findings did show that the presence of trigger mechanism did decreased the magnitude of natural frequencies as well as the mode shape as shown by crash box type 3 by 9.50% and for the crashworthiness output, the crashworthiness behaviour of the crash box with trigger mechanisms were better in term of the collisions phases indicated by the primary peak force and the secondary peak force from the force-displacement curve as also shown by crash box structure type 3 with the percentage of 22.59%. The study does shows that the stiffness and mass distribution due to the presence of trigger mechanism do affect the modal properties of a structure as well as its crashworthiness output.

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Lightweight Study on Gear Reducer Box Structure Based on Finite Element Analysis

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.823.20 ◽

2013 ◽

Vol 823 ◽

pp. 20-23 ◽

Cited By ~ 1

Author(s):

Yi Bin He ◽

Bing Kuan Yang ◽

Yu Zhang ◽

Shi Wen Liu ◽

Ding Fang Chen

Keyword(s):

Finite Element Analysis ◽

Finite Element ◽

Lightweight Design ◽

Plate Thickness ◽

Comprehensive Analysis ◽

Practical Significance ◽

Bottom Plate ◽

Element Analysis ◽

Box Structure ◽

Stress And Deformation

On the basis of the analysis of the problems existing in the current research on gear reducer structure, using Solidworks to reducer box structure finite element analysis, by changing the angle of the rib plate and rib plate thickness, the size of the box thickness and the thickness of the bottom plate, based on a comparative study on the experimental data, the comprehensive analysis of the change of the stress and displacement, enclosure structure stress and deformation with the change of size of box body, and eventually make the reducer box to achieve optimization of the structure, lightweight design for the reducer box to explore effective ways and means, has a certain practical significance. Keywords: Solidworks;Finite Element Analysis;Gear Reducer Box;Lightweight;

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