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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.67 No.1
- 발행연도
- 2018.1
- 수록면
- 21 - 31 (11page)
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초록· 키워드
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In this work, the dynamic stability of carbon nanotubes (CNTs) reinforced composite pipes conveying pulsating fluid flow is investigated. The pipe is surrounded by viscoelastic medium containing spring, shear and damper coefficients. Due to the existence of CNTs, the pipe is subjected to a 2D magnetic field. The radial induced force by pulsating fluid is obtained by the Navier-Stokes equation. The equivalent characteristics of the nanocomposite structure are calculated using Mori-Tanaka model. Based on first order shear deformation theory (FSDT) or Mindlin theory, energy method and Hamilton’s principle, the motion equations are derived. Using harmonic differential quadrature method (HDQM) in conjunction with the Bolotin’s method, the dynamic instability region (DIR) of the system is calculated. The effects of different parameters such as volume fraction of CNTs, magnetic field, boundary conditions, fluid velocity and geometrical parameters of pipe are shown on the DIR of the structure. Results show that with increasing volume fraction of CNTs, the DIR shifts to the higher frequency. In addition, the DIR of the structure will be happened at lower excitation frequencies with increasing the fluid velocity.
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참고문헌 (61)
참고문헌 신청
Abdelouahed Tounsi / 2016 / Size-dependent mechanical behavior of functionally graded trigonometric shear deformable nanobeams including neutral surface position concept / Steel and Composite Structures, An International Journal 20(5):963~981
Ansari, R. / 2014 / Nonlinear forced vibration analysis of functionally graded carbon nanotube-reinforced composite Timoshenko beams / Compos. Struct. 113:316~327
Aragh, S.B. / 2012 / Eshelby-Mori-Tanaka approach for vibrational behavior of continuously graded carbon nanotube-reinforced cylindrical panels / Compos. Part B: Eng. 43(4):1943~1954
Ariaratnam, S.T. / 1986 / Dynamic stability of pipes conveying pulsating fluid / J. Sound Vibr. 107(2):215~230
Amina Attia / 2015 / Free vibration analysis of functionally graded plates with temperature-dependent properties using various four variable refined plate theories / Steel and Composite Structures, An International Journal 18(1):187~212
Ansari, R. / 2014 / Nonlinear forced vibration analysis of functionally graded carbon nanotube-reinforced composite Timoshenko beams / Compos. Struct. 113:316~327
Aragh, S.B. / 2012 / Eshelby-Mori-Tanaka approach for vibrational behavior of continuously graded carbon nanotube-reinforced cylindrical panels / Compos. Part B: Eng. 43(4):1943~1954
Ariaratnam, S.T. / 1986 / Dynamic stability of pipes conveying pulsating fluid / J. Sound Vibr. 107(2):215~230
Amina Attia / 2015 / Free vibration analysis of functionally graded plates with temperature-dependent properties using various four variable refined plate theories / Steel and Composite Structures, An International Journal 18(1):187~212
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