NONLINEAR VIBRATION ANALYSIS OF THE BEAM CARRYING A MOVING MASS USING MODIFIED HOMOTOPY

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POORJAMSHIDIAN M.; SHEIKHI J.; MAHJOUB MOGHADAS S.; NAKHAIE M.

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Journal Paper

Paper Information

Journal: JOURNAL OF SOLID MECHANICS Year:2014 | Volume:6 | Issue:4 Page(s): 389-396

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Title

NONLINEAR VIBRATION ANALYSIS OF THE BEAM CARRYING A MOVING MASS USING MODIFIED HOMOTOPY

Author(s)

POORJAMSHIDIAN M. | SHEIKHI J. | MAHJOUB MOGHADAS S. | NAKHAIE M. | Issue Writer Certificate

Keywords

NON-LINEAR VIBRATION

MODIFIED HOMOTOPY

CONCENTRATED MASS

Abstract

In the present study, the analysis of nonlinear vibration for a simply-supported flexible beam with a constant velocity carrying a moving mass is studied. The amplitude of vibration assumed high and its deformation rate is assumed slow. Due to the high amplitude of vibrations, stretching is created in mid-plane, resulting in, the nonlinear strain-displacement relations is obtained, Thus, Nonlinear terms governing the vibrations equation is revealed. MODIFIED HOMOTOPY equation is employed for solving the motion equations. The results shown that this method has high accuracy. In the following, analytical expressions for nonlinear natural frequencies of the beams have been achieved. Parametric studies indicated that, due to increasing of the velocity CONCENTRATED MASS, the nonlinear vibration frequency is reduced. On the other hand, whatever the mass moves into the middle of beam, beam frequency decreases.

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APA: Copy

POORJAMSHIDIAN, M., SHEIKHI, J., MAHJOUB MOGHADAS, S., & NAKHAIE, M.. (2014). NONLINEAR VIBRATION ANALYSIS OF THE BEAM CARRYING A MOVING MASS USING MODIFIED HOMOTOPY. JOURNAL OF SOLID MECHANICS, 6(4), 389-396. SID. https://sid.ir/paper/319358/en

Vancouver: Copy

POORJAMSHIDIAN M., SHEIKHI J., MAHJOUB MOGHADAS S., NAKHAIE M.. NONLINEAR VIBRATION ANALYSIS OF THE BEAM CARRYING A MOVING MASS USING MODIFIED HOMOTOPY. JOURNAL OF SOLID MECHANICS[Internet]. 2014;6(4):389-396. Available from: https://sid.ir/paper/319358/en

IEEE: Copy

M. POORJAMSHIDIAN, J. SHEIKHI, S. MAHJOUB MOGHADAS, and M. NAKHAIE, “NONLINEAR VIBRATION ANALYSIS OF THE BEAM CARRYING A MOVING MASS USING MODIFIED HOMOTOPY,” JOURNAL OF SOLID MECHANICS, vol. 6, no. 4, pp. 389–396, 2014, [Online]. Available: https://sid.ir/paper/319358/en

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