Dynamics Properties of a Go-Kart Chassis Structure and Its Prediction Improvement Using Model Updating Approach
Nurul Azma Abdullah,Mohd Shahrir Mohd Sani,Nurulakmar Abu Husain,Md. Mustafizur Rahman,Izzuddin Zaman +4 more
TLDR
In this article, the authors performed model updating of a go-kart chassis structure in order to reduce the percentage of error between the experimental modal analysis (EMA) and finite element analysis (FEA).Abstract:
Model updating is concerned about the correction of finite element models by processing the record of dynamic response from test structures in order to have an accurate model for any simulated analysis. Finite element model updating had emerged years ago as an important subject in structural dynamics. It has been used frequently and has been successfully applied to many fields especially in detecting the dynamic stiffness of a structure. The purpose of this study is to perform model updating of a go-kart chassis structure in order to reduce the percentage of error between the experimental modal analysis (EMA) and finite element analysis (FEA). Modal properties (natural frequency, mode shapes, and damping ratio) of the go-kart chassis structure were determined using both EMA and FEA. Correlation of the modal parameters gathered in FEA and EMA was carried out before optimizing the data from finite element. By adjusting the selective parameters, incongruities between those two analyses are generally reduced. The sensitivity of selected parameters is also obtained. The significant reduction in percentageof error before and after model updating procedure was carried out in this study clearly shows that model updating technique is a reliable method in reducing the discrepancies between EMA and FEA. Therefore, in cases of high discrepancies between analytical and actual test data, model updating can be considered as an option in order to obtain better correlation between those two sets of data.read more
Citations
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Journal ArticleDOI
Finite Element Modelling and Updating of Welded Thin-Walled Beam
TL;DR: It is found that using FE model updating process provides an efficient and systemic way to perform a feasible FE model in replicating the real structure.
Journal ArticleDOI
Dynamic Study of Bicycle Frame Structure
TL;DR: In this paper, the authors focus on dynamic study for bicycle frame structure with a purpose to avoid the problem regarding loads on the structure and to ensure the structure is safe when multiple loads are applied on it.
Proceedings ArticleDOI
Modal based updating for the dynamic behaviour of a car trunk lid
M. S. Mohd Zin,M. N. Abdul Rani,Mohd Azmi Yunus,Muhammad Azmi Ayub,Mohd Shahrir Mohd Sani,M. A. S. Aziz Shah +5 more
TL;DR: Modal based updating has been successfully used to reconcile the initial finite element model with the physical model of the trunk lid.
Journal ArticleDOI
Investigation and optimization for the dynamical behaviour of the vehicle structure
TL;DR: In this article, an improved conceptual modeling method in which beams and panels of the structure are modelled as simplified beam elements has been proposed to explore the advantage of conceptual modeling in determining the resonant frequencies/mode-shapes, a case study for wheelhouse was performed.
Book ChapterDOI
Design Optimization of Go-Kart Chassis Frame Using Modal Analysis
TL;DR: In this paper, the structural strength of a go-kart chassis has been improved against static and dynamic loads through geometrical modifications, where each structural element was re-analyzed after making multiple variations in its geometry in attempt to minimize the deformation and then the minimum deformation was achieved in the structural element, then structure was finalized for stage 1.
References
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Book
Finite Element Model Updating in Structural Dynamics
TL;DR: A comparison of Numerical Data with Test Results and Iterative Methods Using Modal Data for Model Updating shows that the former is more accurate than the latter.
Journal ArticleDOI
The sensitivity method in finite element model updating: A tutorial
TL;DR: A basic introduction to the most important procedures of computational model updating is provided, including tutorial examples to reinforce the reader’s understanding and a large scale model updating example of a helicopter airframe.
Journal ArticleDOI
Finite element models of spot welds in structural dynamics: review and updating
TL;DR: In this paper, a review of the spot weld models available in the literature is presented, and model updating based on the measured vibration characteristics is then used to improve the accuracy of the most common coarse models of spot welds.
Journal ArticleDOI
Substructure based approach to finite element model updating
TL;DR: In this article, a substructure-based finite element model updating technique is proposed, where a few eigenmodes of the independent substructures and their associated derivative matrices are assembled into a reduced eigenequation to recover the eigensolutions and eigenensitivities of the global structure.