MODAL ANALYSIS OF A BEAM MASS SYSTEM USING TIME VARYING MODAL ANALYSIS METHODS

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POURSHAHSAVARI H.; GHORBANI E.; KESHMIRI M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: Modares Mechanical Engineering Year:2013 | Volume:13 | Issue:8 Page(s): 42-56

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Title

MODAL ANALYSIS OF A BEAM MASS SYSTEM USING TIME VARYING MODAL ANALYSIS METHODS

Author(s)

POURSHAHSAVARI H. | GHORBANI E. | KESHMIRI M. | Issue Writer Certificate

Keywords

MODAL ANALYSISQ2

LINEAR TIME VARYING SYSTEMQ2

PSEUDO MODAL PARAMETERS AND STATE TRANSITION MATRIXQ2

Abstract

This paper discusses an adaptation of MODAL ANALYSIS concepts to time-varying periodic systems. It will be shown that the pseudo-modal parameters preserve certain properties of the conventional modal parameters defined for LTI systems. For this reason, after definition of pseudo modal parameters for time varying systems, a new MODAL ANALYSIS method will be introduced in time domain and it will be shown that these parameters can explain the nature of system. for periodic time varying systems, state transition matrices are formed by an ensemble set of responses which are obtained through multiple experiments on the system with the sometime varying behavior. In next step the pseudo natural frequencies of a beam with moving mass using introduced method will be extracted. Finally, it will be proved that for a linear time periodic system, the pseudo natural frequency treats periodic too.

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APA: Copy

POURSHAHSAVARI, H., GHORBANI, E., & KESHMIRI, M.. (2013). MODAL ANALYSIS OF A BEAM MASS SYSTEM USING TIME VARYING MODAL ANALYSIS METHODS. MODARES MECHANICAL ENGINEERING, 13(8), 42-56. SID. https://sid.ir/paper/178620/en

Vancouver: Copy

POURSHAHSAVARI H., GHORBANI E., KESHMIRI M.. MODAL ANALYSIS OF A BEAM MASS SYSTEM USING TIME VARYING MODAL ANALYSIS METHODS. MODARES MECHANICAL ENGINEERING[Internet]. 2013;13(8):42-56. Available from: https://sid.ir/paper/178620/en

IEEE: Copy

H. POURSHAHSAVARI, E. GHORBANI, and M. KESHMIRI, “MODAL ANALYSIS OF A BEAM MASS SYSTEM USING TIME VARYING MODAL ANALYSIS METHODS,” MODARES MECHANICAL ENGINEERING, vol. 13, no. 8, pp. 42–56, 2013, [Online]. Available: https://sid.ir/paper/178620/en

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