Avaliação da confiabilidade humana na operação de uma cooperativa de beneficiamento de laticínios

• Autor(a) principal: D’albuquerque, Marcos Alexandre Nunes
• Data de Publicação: 2018
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/123456789/15196
• topic: Confiabilidade humana; Ergonomia; Análise da atividade; Cooperativismo; Human reliability; Ergonomics; Activity analysis; Cooperativism; Laticínios - Beneficiamento; Operador - Conduta; CNPQ::ENGENHARIAS::ENGENHARIA DE PRODUCAO

The automation of productive processes, present in industries with high uniformity in the production of goods or services, is characterized by the low flexibility of the production system and the high interdependence between the processes and the products generated. Although this automation suggests a decrease in the relevance of the workers role within the production system, there are several unexpected situations, not foreseen in the prescription of tasks, which require the intervention of the operators to maintain operational stability and ensure the continuity of the production process. This dissertation addresses this issue by identifying the actions of human reliability introduced by operators to ensure the regular functioning of the milk pasteurization, milk curd production and physicochemical analysis laboratory. It is a qualitative research on the approach to the problem, applied in terms of results and descriptive from the point of view of objectives. The case study was carried out in a dairy processing plant where emphasis was given to the Work Ergonomics Analysis (WEA) stage which deals with the Activity Analysis, using as direct research instruments the recording of situations and refunds of the operator through contextualized verbalizations. The analysis of the collected data was based on scientific studies focused on the theme of the study and discourse analysis. The results indicate that a set of actions is implemented by workers through their ability to anticipate and predict and their experience. These attributes of the operator are used to construct a mental model of the system during the course of action, which are determined by the level of experience gained by the worker, his knowledge and his abilities. The operator confronts the prescription of the tasks defined for its function and assumes the role of system reliability agent by ensuring the continuity of the operation, recovering faults or minimizing the consequences of an undesired event, ensuring the operation of the production process and the product quality.