Improving Design Method of Loader Cockpit Through Ergonomics Simulation and Analysis

Abstract

The complex working conditions and high working intensity of loader combined with long-lasting working hours have been the main reason for the reducing of driver’s working capability as well possible health hazards. Design quality of the loader cockpit is not only one of the major factors affecting the loader operator’s working efficiency, and contribute to the core competence of competitions among various manufacturers. Present design method of loader cockpit based on the regulation and tool defined by related SAE standards, without considering the applicability specific operator groups in the design process. The regular design method is weak in checking and verifying the design results, ergonomics problems can only be detected in field usage after mass production. It may cause the hysteresis of problems detecting, failing to detect design problems timely in advance of production. In this research, we present a optimization design method of a loader cockpit, which investigates the application of Ergonomics simulation software in the design process of loader cockpit. Using JACK could carry out static and dynamic simulation of the human action as well as accomplish analyses of the accessibility, visibility and comfortness. In particular, a 3-D graphic tool presenting the zones of comfort and reach for controls helps to define the layout position of operation parts. Styling design proposals are also presented after the optimization of cockpit ergonomics layout.