Computer-Aided Ergonomic Analysis for Excavator Using RAMSIS Software

Abstract

In this ergonomic analysis, an excavator cabin environment is optimized according to the manikins modeled in the 3D analysis software RAMSIS (developed by Human Solutions). This is a preliminary analysis, and based on this report, further changes and optimizations in the environment are possible depending upon the skill level of the user. In this analysis, the focus is primarily on two key roles, which will be performed by the operator in the excavator, driving and digging. This analysis will give an insight into the discomfort and obstruction in vision which will be experienced by the operator while performing different tasks. The cabin environment is modified to provide a decent level of comfort to the operator in both roles. Adjustments are made to the position of the touch panel, armrest, and steering wheel. Vision analysis is done to determine any obstruction in the visual field while working inside the cabin. The steering position is brought closer to the manikin, the touch panel is repositioned for comfortable access and the armrests are also adjusted for improved comfort of the manikins. A literature review is also done for the topic “digital human modeling”. The results are analyzed using software such as VOSviewer, Web of Science, Scopus and MAXQDA.