Static lateral stiffness of wire rope isolators

Balaji, Palani S., Leblouba, Moussa, Rahman, Muhammad and Ho, Lau Hieng (2016) Static lateral stiffness of wire rope isolators. Mechanics Based Design of Structures and Machines, 44 (4). pp. 462-475. ISSN 1539-7734

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Official URL: https://doi.org/10.1080/15397734.2015.1116996

Abstract

This paper presents an analytical model for the static lateral stiffness of Wire Rope Isolators (WRI). The wire rope isolator, which is a passive isolation device, has been widely adopted as a shock and vibration isolation for many types of equipment and lightweight structures. The major advantage of the WRI is its ability to provide isolation in all three planes and in any orientation. The WRI in the lateral roll mode, is required to possess the required lateral stiffness to support and isolate the equipment effectively. The static lateral stiffness of WRI depends mainly on the geometrical characteristics and wire rope properties. The model developed in this paper is validated experimentally using a series of monotonic loading tests. The flexural rigidity of the wire ropes, which is required in the model, was determined from the transverse bending test on several wire rope cables. It was observed that the lateral stiffness is significantly influenced by the wire rope diameter and height of the isolator. The proposed analytical model can be used for the evaluation of lateral stiffness and in the preliminary design of the WRI.

Item Type: Article
Uncontrolled Keywords: Flexural rigidity, lateral stiffness, shock, vibration, wire rope isolator
Subjects: H100 General Engineering
H300 Mechanical Engineering
H900 Others in Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Rachel Branson
Date Deposited: 23 Feb 2021 10:46
Last Modified: 23 Feb 2021 10:46
URI: http://nrl.northumbria.ac.uk/id/eprint/45518

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