Abstract: Equations governing small‐amplitude free vibrations of extensible cables are determined. The resulting eigenvalue problem is solved using the Galerkin procedure. Numerical results agree with previous results in the ...

Abstract: A method of random vibration analysis of base isolated structures with hysteretic dampers is employed. The hysteretic restoring force is modeled by a nonlinear differential equation. The equations of motion for shear type ...

Abstract: The partial differential equation of motion of the flexible connecting rod of a slider crank is derived, under the assumption of small deflections. Application of the Galerkin procedure, leads ...

Abstract: The problem of the optimal base isolation system of multistory shear type buildings has been considered in a probabilistic sense. For white noise ground accelerations the response of the structure relative to the base was ...

Abstract: Combining the desirable features of the Electricite de France (EDF) base isolator and the resilient‐friction base‐isolation (R‐FBI) system, a modified design for a base isolation system is proposed. Seismic performance of ...

Abstract: Optimal control of flexible continuous structures subjected to arbitrary time-varying distributed loads is considered. The control is to be implemented by discrete sets of sensors and actuators ...

Abstract: A comparative study of effectiveness of various base isolators is carried out. These include the laminated rubber bearing with and without lead plug and several frictional base isolation systems. The structure is modeled ...

Abstract: An optimal‐control algorithm with acceleration, velocity, and displacement feedback is proposed. The algorithm, which is derived by minimizing a quadratic time‐dependent performance index, includes constant control gains ...

Abstract: The rectilinear motion and the conditions of reattachment and separation of a rigid body, in friction contact with another body are considered. A graphical representation of the motion is indicated, and analytical expressions ...