Abstract: Decoupling of a multimass vibration system from a large structure is investigated. First the dynamic influence on the foundation (or floor) response spectra of the inertia of the subcomponent ...

Abstract: Two methods of substructuring finite element models are examined. Each method uses normal mode theory as the basis for selecting the appropriate modes for the substructure and the properties ...

Abstract: A normal mode solution is developed for concentric cylinders coupled by fluid between them and subjected to foundation input motion. Both time-history and spectral inputs can be specified. Example ...

Abstract: The interaction of lateral structural inertia forces with horizontal seismic motion is formulated in terms of an integral equation of the Volterra type. By means of normal mode theory the ...

Abstract: The ABAQUS finite element code was used to model a pressurized pipe and subjected to cyclic bending loads to investigate ratcheting. A 1-in. schedule 40 pipe was loaded with a slow (static) ...

Abstract: In these studies, both dynamic and static tests were conducted on pressurized pipe. Dynamic tests were run on 1 in. Schedule 40 and Schedule 10 seamless 304 stainless steel pipe. Welded 1 ...

Abstract: Nonlinear responses of the dynamic behavior of simply supported pipes were analyzed using a nonlinear finite element program. In the first model, a 1 1/2-in. schedule 40 stainless steel pipe ...

Abstract: This technical paper presents a comparative study of the fatigue strength of high-pressure composite pipes and high-pressure composite pipes containing joints. The test specimens used in this ...