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Effect of Boundary Conditions on Modal Analysis of Aluminum Plates Using Digital Image Correlation Technique

Durga Charan*, S. K. Mangal**, Navin Kumar***

* Assistant Professor, Department of Mechanical Engineering, Seth Jai Parkash Mukand Lal Institute of Engineering and Technology, Radaur, Haryana, India.

** Professor, Department of Mechanical Engineering, Punjab Engineering College, Chandigarh, India.

*** Associate Professor, Department of Mechanical Engineering, Indian Institute of Technology, Ropar, Punjab, India.

Periodicity:September - November'2018
DOI : https://doi.org/10.26634/jste.7.3.14750

Abstract

In engineering systems, components are usually subjected to dynamic loading, where resonance may take place. The resulting vibration due to the resonance is of great concern as it may lead to premature failure of the system. Hence, modal analysis of a structure becomes very necessary to know the response characteristics of a system under dynamic loading and also to avoid the resonance conditions during its operation. The objective of this paper is to study the dynamic response of rectangular and circular plates with all edge fixed and all edge free boundary conditions. The natural frequencies and mode shapes are determined using ANSYS software, which has been validated by experimental investigation. The experimentation is carried out on electrodynamic shaker using Digital Image Correlation (DIC) technique. This work has established that different boundary conditions has considerable effect on the system natural frequencies. The maximum deformation of the rectangular plates in all edge fixed boundary conditions has found to have decreasing trend for higher natural frequencies while for same plate in all edge free boundary conditions, an increasing trend is observed for higher natural frequencies. For circular plates in both boundary conditions, i.e. all edge fixed and all edge free boundary conditions, the maximum deformation of aluminum has found increasing trend for higher natural frequencies.

Keywords

Modal Analysis, Natural Frequency, Mode Shapes, Digital Image Correlation, FEA, Simulation.

How to Cite this Article?

Charan, D., Mangal, S. K., & Kumar, N. (2018). Effect of Boundary Conditions on Modal Analysis of Aluminum Plates Using Digital Image Correlation Technique, i-manager's Journal on Structural Engineering, 7(3), 1-11. https://doi.org/10.26634/jste.7.3.14750

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Effect of Boundary Conditions on Modal Analysis of Aluminum Plates Using Digital Image Correlation Technique

Abstract

Keywords

How to Cite this Article?

References

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