Hydroelastic Vibration of Partially Liquid-Filled Circular Cylindrical Shells Under Combined Internal Pressure and Axial Compression

Sloshing effects on supersonic flutter characteristics of a circular cylindrical shell partially filled with liquid

“…This verification example aims to verify the structural geometric stiffness matrix arising from an external lateral pressure and axial compression load [ K G ]. In this aim, the variation of the frequency of the first mode with axial compression load for a simply supported circular cylindrical shell under an external lateral pressure ( P m = −900 × 10 3 Pa) is illustrated in Figure and compared with the numerical results presented by Sabri and Lakis . According to Sabri and Lakis, the material and geometrical parameters of the simply supported circular cylindrical shell are of the following values: E = 200 GPa, ν = 0.3, ρ S = 7800 kg/m 3 , R = 77.25 mm, h = 1.5 mm, and L = 231 mm.…”

“…In this aim, the variation of the frequency of the first mode with axial compression load for a simply supported circular cylindrical shell under an external lateral pressure ( P m = −900 × 10 3 Pa) is illustrated in Figure and compared with the numerical results presented by Sabri and Lakis . According to Sabri and Lakis, the material and geometrical parameters of the simply supported circular cylindrical shell are of the following values: E = 200 GPa, ν = 0.3, ρ S = 7800 kg/m 3 , R = 77.25 mm, h = 1.5 mm, and L = 231 mm. As can be seen in Figure , the present results are in excellent agreement with those predicted by Sabri and Lakis .…”

“…According to Sabri and Lakis, the material and geometrical parameters of the simply supported circular cylindrical shell are of the following values: E = 200 GPa, ν = 0.3, ρ S = 7800 kg/m 3 , R = 77.25 mm, h = 1.5 mm, and L = 231 mm. As can be seen in Figure , the present results are in excellent agreement with those predicted by Sabri and Lakis . The Figure also shows the finite element mesh assignment.…”

“…Of particular interest is therefore the fluid‐structure interaction (FSI) addressing the coupling between an elastic circular cylindrical shell and an internal incompressible fluid. A growing body of literature has been conducted on hydroelastic stability of partially liquid‐filled circular cylindrical shells (see, for instance, the works of Mazúch et al, Jeong and Lee, and Sabri and Lakis). In all of these cited studies, the FSI model was developed based on the assumption of quiescent fluid, where the motion of the liquid free surface, referred to as “sloshing,” can be overlooked.…”

Experimental and Computational Modal Analyses for Launch Vehicle Models considering Liquid Propellant and Flange Joints

“…For the ARES I-X, the launch vehicle was divided into several subparts and modal tests and analyses were conducted for each part, but these did not account for the liquid propellant in the second stage [3]. Although modal tests and analyses for simple cylinders filled with liquid have been performed recently [4][5][6][7], most studies used single cylindrical structures filled with liquid (water). Modal analyses and tests for cylindrical structures with multiple sections containing liquid have rarely been conducted.…”