Dynamic measuring of force-displacement-characteristics of shockmounts

被引：2

作者：

Heinemann, Bernhard ^{[1
]}

Dreesen, Jan ^{[2
]}

Sachau, Delf ^{[1
]}

机构：

[1] Helmut Schmidt Univ, Holstenhofweg 85, D-22043 Hamburg, Germany

[2] Bundeswehr Tech Ctr Ships & Naval Weap, Maritime Technol & Res, Berliner Str 115, D-24340 Eckernforde, Germany

来源：

HELIYON | 2023年 / 9卷 / 06期

关键词：

Shock isolator; Wire rope shockmount; Elastomer shockmount; Dynamic force -displacement -characteristics; Force surface; Naval;

D O I：

10.1016/j.heliyon.2023.e16743

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 quali-fication of the proposed method for attaining dynamic FDC.

引用

页数：18

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