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Dynamic analysis, updating and modification of truck chassis

Bujang @ Zaman, Izzuddin and Rahman, R. A. (2007) Dynamic analysis, updating and modification of truck chassis. In: Regional Conference on Engineering Mathematics, Mechanics, Manufacturing & Architecture (EM3ARC) 2007, 2007.

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Reducing the weight and production cost of chassis is considered to be one of the most important area of research in automotive manufacturing industry. However with lighter vehicle, the chassis is easily subjected to large vibration mainly coming from the engine and road irregularities. This paper looks into the application of dynamic analysis for verification of the complex FE model of truck chassis. The dynamic characteristic of truck chassis such as the natural frequency and mode shape is determined by finite element method. Experimental measurement by modal testing is then carried out to determine the accuracy of finite element analysis. Initial result indicated some discrepancies with regard to natural frequencies at various modes. However for mode shape analysis, both methods produced almost the same shape. As for getting a better agreement between both methods of analysis, modal updating had been carried out by adjusting parametric value of Modulus Young and mass density. It had been pointed out that the error was reduced to ± 2% through the model updating verified FE model has been obtained. Finally, the modifications of the verified FE truck chassis model has been suggested by consider adding the stiffener to reduce the vibration through chassis as well as improve the strength of structure.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: dynamic characteristic; finite element; modal testing; model updating
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL1-484 Motor vehicles. Cycles
Divisions: Faculty of Mechanical and Manufacturing Engineering > Department of Engineering Mechanics
Depositing User: Normajihan Abd. Rahman
Date Deposited: 09 Sep 2013 09:06
Last Modified: 21 Jan 2015 07:50
URI: http://eprints.uthm.edu.my/id/eprint/4129
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