𝔖 Bobbio Scriptorium
✦   LIBER   ✦

DYNAMIC RESPONSE OF EQUIPMENT IN STRUCTURES WITH SLIDING SUPPORT

✍ Scribed by LU, L. Y.; YANG, Y. B.

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
429 KB
Volume
26
Category
Article
ISSN
0098-8847

No coin nor oath required. For personal study only.

✦ Synopsis

The dynamic behaviour of a single degree-of-freedom (DOF) equipment mounted on a sliding primary structures subjected to harmonic and earthquake ground motions is studied numerically. To deal with the discontinuity nature of sliding structural systems, in this work the fictitious spring model is adopted. With the problem formulated in a state space form, an incremental numerical scheme capable of dealing with multi-DOF sliding structural systems is proposed for solving the time history responses. Numerical examples excited by harmonic and real earthquake ground motions are considered in order to study the following three effects: (1) the variation of the frictional coefficient of the sliding support, (2) subharmonic resonance and (3) effect of tuning (i.e. when the frequency of the equipment is coincident with or close to the fundamental frequency of the primary structure) on the mounted equipment. The dynamic characteristics of the mounted equipment are highlighted in the analysis of the numerical examples.

πŸ“œ SIMILAR VOLUMES

Dynamic analysis of sliding structures w
Dynamic analysis of sliding structures with unsynchronized support motions
✍ Wang, Yen-Po; Liao, Wei-Hsin πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 175 KB πŸ‘ 2 views

The dynamic analysis of sliding structures is complicated due to the presence of friction. Synchronization of the kinematics of all the isolation bearings is often granted to simplify the task. This, however, may lead to inaccurate prediction of the structural responses under certain circumstances.

Seismic response of shear-core with slid
Seismic response of shear-core with sliding support to bi-directional ground excitation
✍ Agrawal, Abhijit K. πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 241 KB

To study the effectiveness of a sliding support for the isolation of structures from damaging ground motion, the model of a shear-core supported on a sliding foundation and subjected to random ground motion in two orthogonal directions is considered here. A fictitious spring model is adopted to deal

Numerical modeling of MDOF structures wi
Numerical modeling of MDOF structures with sliding supports using rigid-plastic link
✍ A. Vafai; M. Hamidi; G. Ahmadi πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 143 KB

In this paper, the responses of multi-degree-of-freedom (MDOF) structures on sliding supports subjected to harmonic or random base motions are investigated. Modeling of the friction force under the foundation raft is accomplished by using a ΓΏctitious rigid link which has a rigid-perfectly plastic ma

Stochastic seismic response of multiply-
Stochastic seismic response of multiply-supported secondary systems in flexible-base structures
✍ Dey, Aparna; Gupta, Vinay K. πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 209 KB πŸ‘ 2 views

A formulation has been proposed for the transfer function of a secondary system response while the primary system is supported on a compliant soil and the excitation comprises of translational ground motion at its base. For this purpose, the earlier formulation of the authors for the fixed-base case

RANDOM SEISMIC RESPONSES OF MULTI-SUPPOR
RANDOM SEISMIC RESPONSES OF MULTI-SUPPORT STRUCTURES IN EVOLUTIONARY INHOMOGENEOUS RANDOM FIELDS
✍ LIN, JIAHAO; LI, JIANJUN; ZHANG, WENSHOU; WILLIAMS, F. W. πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 English βš– 383 KB πŸ‘ 1 views

An efficient approach is proposed for analysing the non-stationary random responses of complex structures located in an evolutionary inhomogeneous stochastic field. The approach is a kind of complete CQC method because the crosscorrelation terms both between the participant modes and between the gro