Characterization of Functionally Graded Timoshenko Beams with Variable Rotational Speed
S.N.Padhi1, K. S. Raghu Ram2, Jasti Kasi Babu3, T.Rout4
1Surya Narayan Padhi, Department of Mechanical Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram (A.P.) India.
2K.S.Raghu Ram, Jasti Kasi Babu, Dept. of Mechanical Engg.,Vignan’s Institute of Information Technology, Visakhapatnam, India.
3Trilochan Rout, Dept.of Mechanical Engg., Parala Maharaja Engineering College, Berhampur, India.

Manuscript received on November 12, 2019. | Revised Manuscript received on November 25, 2019. | Manuscript published on 30 November, 2019. | PP: 5926-5931 | Volume-8 Issue-4, November 2019. | Retrieval Number: D8974118419/2019©BEIESP | DOI: 10.35940/ijrte.D8974.118419

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Abstract: This paper investigates the free vibration characteristics and stability of a functionally graded Timoshenko beam spinning with variable angular speed. Material properties of the beam are assumed to be varied continuously along the thickness of the beam according to a power law and exponential law. The results show that increasing beam rotational speed increases fundamental mode frequency and the beam becomes more and more stable at higher speeds. This paper reports the dynamic behaviour of a rotating FGM beam subjected to axial periodic forces using the finite element method. The numerical results show good agreement with the reported beams models. Effects of static and time dependent components of axial loads on the stability of the FGM beam have been studied.
Keywords: Exponential Distribution, Timoshenko Beam, Load Factor, Power Law, Rotational Speed, Stability.
Scope of the Article: Low-power design.