The University of Southampton
University of Southampton Institutional Repository

The transmission of translational floor vibration to the heads of standing subjects

The transmission of translational floor vibration to the heads of standing subjects
The transmission of translational floor vibration to the heads of standing subjects

The head motions of standing subjects have been measured while they were exposed to floor vibration occurring in each of the three translational axes: fore-and-aft, lateral and vertical. While exposed to fore-and-aft floor vibration, the 12 male subjects were instructed to stand in two postures: holding a handrail in front of them lightly; and holding the handrail rigidly. During exposure to lateral floor vibration subjects stood in three postures: feet together, feet 30 cm apart and feet 60 cm apart. The postures investigated during exposure to vertical floor vibration were: straight legs (i.e., locked), legs very slightly bent (i.e., unlocked) and legs bent. Variability within and between subjects (i.e., intra- and inter-subject variability) was investigated for all axes of excitation and all postures. Transmissibilities between the floor and the head were calculated for all conditions. During exposure to fore-and-aft floor vibration, the head motion occurred mostly in the mid-sagittal plane; a rigid grip on the handrail resulted in higher transmissibilities than a light grip.During exposure to lateral floor vibration, the head motion occurred mainly below 3 Hz and in the lateral axis; the 60 cm foot separation resulted in more head motion below 3 Hz than the other postures. During exposure to vertical floor vibration, head motion occurred principally in the mid-sagittal plane. For frequencies below about 5 Hz, a legs bent posture resulted in the highest transmissibilities, while a legs locked posture showed the lowest motion; this order was reversedat higher frequencies. Differences in transmissibility as large as 20:1 occurred between subjects for some conditions.

0022-460X
503-521
Paddan, G. S.
d019df32-1de8-4ecf-976e-61791661ef13
Griffin, M. J.
24112494-9774-40cb-91b7-5b4afe3c41b8
Paddan, G. S.
d019df32-1de8-4ecf-976e-61791661ef13
Griffin, M. J.
24112494-9774-40cb-91b7-5b4afe3c41b8

Paddan, G. S. and Griffin, M. J. (1993) The transmission of translational floor vibration to the heads of standing subjects. Journal of Sound and Vibration, 160 (3), 503-521. (doi:10.1006/jsvi.1993.1041).

Record type: Article

Abstract

The head motions of standing subjects have been measured while they were exposed to floor vibration occurring in each of the three translational axes: fore-and-aft, lateral and vertical. While exposed to fore-and-aft floor vibration, the 12 male subjects were instructed to stand in two postures: holding a handrail in front of them lightly; and holding the handrail rigidly. During exposure to lateral floor vibration subjects stood in three postures: feet together, feet 30 cm apart and feet 60 cm apart. The postures investigated during exposure to vertical floor vibration were: straight legs (i.e., locked), legs very slightly bent (i.e., unlocked) and legs bent. Variability within and between subjects (i.e., intra- and inter-subject variability) was investigated for all axes of excitation and all postures. Transmissibilities between the floor and the head were calculated for all conditions. During exposure to fore-and-aft floor vibration, the head motion occurred mostly in the mid-sagittal plane; a rigid grip on the handrail resulted in higher transmissibilities than a light grip.During exposure to lateral floor vibration, the head motion occurred mainly below 3 Hz and in the lateral axis; the 60 cm foot separation resulted in more head motion below 3 Hz than the other postures. During exposure to vertical floor vibration, head motion occurred principally in the mid-sagittal plane. For frequencies below about 5 Hz, a legs bent posture resulted in the highest transmissibilities, while a legs locked posture showed the lowest motion; this order was reversedat higher frequencies. Differences in transmissibility as large as 20:1 occurred between subjects for some conditions.

Full text not available from this repository.

More information

Published date: 22 January 1993

Identifiers

Local EPrints ID: 429170
URI: https://eprints.soton.ac.uk/id/eprint/429170
ISSN: 0022-460X
PURE UUID: 38271693-be7a-4e38-a2ad-6b5095dc6a26
ORCID for M. J. Griffin: ORCID iD orcid.org/0000-0003-0743-9502

Catalogue record

Date deposited: 22 Mar 2019 17:30
Last modified: 23 Mar 2019 01:38

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×