Author

Karim

Date of Award

6-1998

Degree Name

Master of Science in Engineering

Department

Industrial and Entrepreneurial Engineering and Engineering Management

Department

Industrial and Manufacturing Engineering

First Advisor

Dr. Tycho Fredericks

Second Advisor

Dr. Liwana Bringelson

Third Advisor

Dr. Mitchel Keil

Access Setting

Masters Thesis-Open Access

Abstract

This paper presents a study on a combination lift and carrying task and was designed to simulate a metal pouring operation commonly found in foundries. Two laboratory experiments were conducted. The first experiment was designed to study the effects of two different mold heights (0.6096 m. and 0.4572 m.) and two carrying distances (1.2192 m. and 4.572 m.) on physiological response variables and on subjects' rating of perceived exertion while performing a simulated pouring operation at a documented foundry frequency. The second experiment was designed to determine maximum acceptable task frequencies (MAF) for males performing a simulated pouring operation at two different mold heights and carrying distances, using psychophysical methodology. Ten healthy males served as subjects in these experiments. Results showed that MAF decreased significantly with the increase in both mold height and carrying distance. These results were supported by various physiological variables and ratings of perceived exertion. Results indicated that the subjects selected a frequency as their MAF which was 24% lower than the foundry frequency as the carrying distance increased from 1.2192 m. to 4.572 m.

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