Vibrations of Circular Cylindrical Shells With Nonuniform Constraints, Elastic Bed and Added Mass; Part I: Empty and Fluid-Filled Shells

Vibrations of Circular Cylindrical Shells With Nonuniform Constraints, Elastic Bed and Added Mass. Part Iii: Steady Viscous Effects on Shells Conveying Fluid

“…Vibrations of empty and fluid-filled shells with nonuniform boundary conditions and additional complications (added masses and partial elastic bed) have been studied in Part I of the present study (Amabili & Garziera 2000). The problem has been extended in Part II (Amabili & Garziera 2002) to consider pressurized shells in contact with internal, external and annular ideal flows.…”

“…As observed by El Chebair et al (1990), this effect is more important than the effect of unsteady viscous forces. The model developed in Part I of the present study (Amabili & Garziera 2000), capable of simulating shells with nonuniform boundary conditions, added masses and partial elastic bed, has been extended to include nonuniform prestress. The effect of steady viscous forces has been added to the inviscid flow formulation considered in Part II (Amabili & Garziera 2001).…”

Vibrations of Circular Cylindrical Shells With Nonuniform Constraints, Elastic Bed and Added Mass. Part Ii: Shells Containing or Immersed in Axial Flow

“…Similar to Part I of the present study (Amabili & Garziera 2000), the symmetric modes (in a cross-section) with respect to "0 are expanded as…”

“…In the present study, the model introduced in Part I (Amabili & Garziera 2000) is extended to take into account a #owing #uid, di!erent constraints at the shell edges, a mean radial pressure and initial pre-stress in the shell. The axial #ow can be external, internal or annular and is described by the potential theory for inviscid and incompressible #uid.…”

Free Vibrations of Fluid-filled Cylindrical Shells on Partial Elastic Foundations

“…유체 가 채워진 원통셸에 대해서도 많은 연구자 (7,8) 에 의 해 연구되었으나, 이들 연구는 모두 탄성지지는 고 려하지 않고 유체만을 고려하였다. 유체와 탄성지지 를 동시에 고려한 연구는 매우 드물다 (9,10) . Amabili 와 Garziera …”