Accession Number : ADP004718

Title :   Vibrations Isolation of an Elevator System,

Corporate Author : NORTH CAROLINA AGRICULTURAL AND TECHNICAL STATE UNIV GREENSBORO DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Tzou,H. S. ; Schiff,A. J.

Report Date : NOV 1984

Pagination or Media Count : 6

Abstract : The vulnerability of elevator system has been demonstrated from recent earthquake reports. An elevator counterweight/frame/guide rails system is modeled by beam finite elements. Because of large structural vibration, parts of the system may come in contact if their relative displacement exceeds the gap. Due to the fact that large dynamic force resulting from contact often causes the damage of the elevator system, the study of viscoelastic damper being used as vibration isolator is introduced. A system with viscoelastic dampers which are modeled by standard linear model is evaluated in the dynamic analysis.

Descriptors :   *DAMPING, *VIBRATION ISOLATORS, *ELEVATORS(LIFTS), *MATHEMATICAL MODELS, EARTHQUAKE RESISTANT STRUCTURES, VULNERABILITY, FINITE ELEMENT ANALYSIS, DYNAMIC RESPONSE

Distribution Statement : APPROVED FOR PUBLIC RELEASE