Dynamic measuring of force-displacement-characteristics of shockmounts
Publication date
2023-05-27
Document type
Forschungsartikel
Author
Organisational unit
Publisher
Elsevier
Series or journal
Heliyon
ISSN
Periodical volume
9
Periodical issue
6
Article ID
e16743
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
Keyword
Shock isolator
Wire rope shockmount
Elastomer shockmount
Dynamic force-displacement-characteristics
Force surface
Naval
Abstract
Shockmounts are widely used to isolate sensitive equipment from vibrations and mechanical shock. Despite the highly dynamic nature of shock events, the force-displacement-characteristics of shockmounts which are provided by manufacturers are gained by static measurements. Therefore, this paper presents a dynamic mechanical model of a setup for dynamic measurements of force-displacement-characteristics. The model bases on acceleration measurement of an inert loading mass, which displaces the shockmount, when the arrangement gets excited by means of a shock test machine. The influence of the shockmount’s mass in measuring setup is considered as well as special needs for handling measurements under shear or roll loading. A method for allocating the measured force data on the displacement axis is developed. An equivalent of a hysteresis-loop in a decaying force-displacement-diagram is proposed.
Based on exemplary measurements, error calculation and statistical analysis show the qualification of the proposed method for attaining dynamic FDC.
Based on exemplary measurements, error calculation and statistical analysis show the qualification of the proposed method for attaining dynamic FDC.
Description
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (https://creativecommons.org/licenses/by-nc-nd/4.0/).
Version
Published version
Access right on openHSU
Metadata only access