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Titolo:
Maximum acceptable horizontal and vertical forces of dynamic pushing on high and low coefficient of friction floors
Autore:
Ciriello, VM; McGorry, RW; Martin, SE;
Indirizzi:
Liberty Mutual Res Ctr Safety & Hlth, Hopkinton, MA 01748 USA Liberty Mutual Res Ctr Safety & Hlth Hopkinton MA USA 01748 MA 01748 USA
Titolo Testata:
INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS
fascicolo: 1, volume: 27, anno: 2001,
pagine: 1 - 8
SICI:
0169-8141(200101)27:1<1:MAHAVF>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
MANUAL HANDLING TASKS; LIFTING TASKS; WORK; WEIGHTS; INJURY; DESIGN; BACK;
Keywords:
psychophysics; pushing; manual materials handling; maximum acceptable forces; coefficient of friction;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Engineering, Computing & Technology
Citazioni:
28
Recensione:
Indirizzi per estratti:
Indirizzo: Ciriello, VM Liberty Mutual Res Ctr Safety & Hlth, 71 Frankland Rd, Hopkinton, MA 01748USA Liberty Mutual Res Ctr Safety & Hlth 71 Frankland Rd Hopkinton MA USA 01748
Citazione:
V.M. Ciriello et al., "Maximum acceptable horizontal and vertical forces of dynamic pushing on high and low coefficient of friction floors", INT J IND E, 27(1), 2001, pp. 1-8

Abstract

The purpose of this experiment was to investigate horizontal and vertical components of maximum acceptable initial and sustained forces while performing push cart tasks on high and low coefficient of friction (COF) floors. Eight male industrial workers performed two sessions of 120 push cart tasks on a high COF floor and one session of 120 push cart tasks on a low COF floor. Each push cart task was 7.6 m long and initialed once a minute. A psychophysical methodology was employed, whereby the subjects were asked to select a workload they could sustain for 8 h without "straining themselves or without becoming unusually tired, weakened, overheated or out of breath". The results revealed maximum acceptable weights of the push cart tasks on thelow COF floor were significantly lower (31%) than the maximum acceptable weights on the high COF floor. That coincided with a significant reduction in the initial and sustained horizontal forces of push (41% and 38%, respectively) on a low COF floor. Push durations on the low COF floor were also longer (62%) than on the high COF floor. Vertical forces and ratios of the vertical to horizontal forces were not significantly different comparing bothfloors. Calculated slip potential and probability of slipping was borne out by the observation of repeated slipping by the subjects during pushing onthe low COF floor. Ergonomic strategies should include the maintenance of sufficient COF on floors to maximize the psychophysical pushing capabilities of the industrial worker.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 18/01/20 alle ore 01:38:23