Grzegorz Dahlke

Implementation of TPM Methodology in Worker Fatigue Management - A Macroergonomic Approach

The article describes the use of TPM pillars: Focused Improvement, Autonomous Maintenance, Planned Maintenance, Quality Maintenance, Early Equipment Management and Training and Education, along with their implementation for the purposes of fatigue management. Among the various techniques used as part of TPM, the techniques that allow better control over the welfare and safety of workers are highlighted. The following methods proved particularly useful in fatigue management: Focused Improvement, where small groups of employees work together proactively to achieve a regular, incremental improvement in safety and fatigue management, as well as Training to establish responsible behavioral patterns in the management of fatigue of both employees and management. The article also presents a theoretical application of the Overall Labor Effectiveness (OLE) indicator, which is analogous to the Overall Equipment Effectiveness (OEE) indicator for the purposes of fatigue management.

Work Posture Analysis in the Ergonomic Assessment of Products - A Case Study

The article presents an example of an application for the analysis of the postures assumed on the job of product evaluation. The research undertaken by the authors concerned finding the ergonomic characteristics of work involving a swinging handle spade. In the course of their research, the authors used an electronic goniometer as well as a manual goniometer. During the test, a comparison was made of the positions assumed by the spade users: while using the handle and without using the handle.

A Multi-Criterial Hardware Assessment of the Psychophysical Capacity of Workers in the Investigation of Fatigue

The article presents a multiple-criteria-based evaluation of the suitability of selected measuring devices for assessing fatigue levels in miners during underground work in a bituminous coal mine. The changing levels of fatigue and decreased psychomotor performance influence worker reliability and susceptibility to accidents. Therefore, monitoring the level of fatigue can be a means of accident prevention. The study allowed to identify the physiological parameters that are relevant in monitoring worker reliability. A multi-criterial compartment establish most reliable fatigue indicators based on before and after work measurements: multi-frequency segmental body composition analysis, reaction time and recognition with Dufour Cross-Shaped Apparatus and analysis of changes in power grip strength.