Idealisation and Formulation in Structural Dynamics Using Modal Analysis

Muhammad Danish; Vinay Kumar Pingali; Somnath Chattopadhyaya; N.K. Singh; A.K. Ray

doi:10.4028/www.scientific.net/AMR.418-420.1022

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 418-420Idealisation and Formulation in Structural...

Idealisation and Formulation in Structural Dynamics Using Modal Analysis

Abstract:

The crux feature of this paper is the equations of motion in a structural dynamics with respect to single reference frame that can be easily derived, and the results are well defined and converged. However, problem occurs, when the analysis of any complex, complicated structure is considered and its equation of motion is extracted with respect to single reference frame. The results are indecipherable, ambiguous and less converged. Thus, for such a complex structure, the results obtain with respect to multiple reference frames. In present study, an approximated model with a set of lumped masses, properly interconnected, along with discrete spring and damper elements are in consideration for continuous vibrating system. This results in dynamic equilibrium, which in turn results in formulation and idealization. As, rightly said by scientist Steve Lacy- “To me, there is spirit in a reed. It is a living thing, a weed, really and it does not contain spirit of sort. It’s really an ancient vibration”

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Periodical:

Advanced Materials Research (Volumes 418-420)

Pages:

1022-1025

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.418-420.1022

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Online since:

December 2011

Authors:

Muhammad Danish, Vinay Kumar Pingali, Somnath Chattopadhyaya, N.K. Singh, A.K. Ray

Keywords:

Dynamic Equilibrium, Formulation, Idealisation, Modal Analysis, Multiple Reference Frame, Single Reference Frame

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References

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