DEVELOPMENT OF EQUIPMENT MAINTENANCE SYSTEM MODEL WHICH IS CAPABLE OF IDENTIFYING COMPONENT USAGE USING FORCE FLOW MODEL APPROACH

• Main Author: Budi Harja, Herman
• Format: Dissertations
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/56939
• Institution: Institut Teknologi Bandung

Production equipment in the manufacturing industry consists of various types. Machine tools are production equipment in the machining industry that are used for working on metal or non-metal materials to produce products as needed. The decrease of machine tools performance is strongly influenced by the functioning condition of its constituent components. This study aims to develop a model of a machining equipment maintenance system that is capable to produce maintenance information down to the component level in the form of remaining service life and maintenance schedules for used components. This study applied a force flow model to represent the connection of the force flow propagation between the components used. The force flow model requires anatomy of the constituent components which are represented in the structural model of the equipment components. In order to make the model to function properly, the component nodes in the force flow model have several attributes, namely: identity, force flow component nodes, moving status and power flow percentage factor values. The developed system model has some functions, those are the ability to: tracing sources of driving components, tracing being-used components subjected to a force, tracing components whose remaining life is to be calculated, determining components status whose power flow values are calculated, calculating power values of components subjected to a force, calculating components remaining service life and generating maintenance schedules. The developed model has been verified in several case studies upon equipment objects, including turning machine gearboxes, Aciera F3 milling machines and hand-driven drill tools. The results showed that the used component that is subjected to a force on the test object could be identified, and the value of the power on the component subjected to a force could be calculated. Furthermore, with the assumed service life (mean time between failure) of each component and the total duration of usage during for a certain period, the model could define the reduction value of the components remaining service life and maintenance schedules, such as remaining service life and prediction of bearing maintenance schedules in the case study. The novelty of this research is the development of a new model of the maintenance system that can produce maintenance information down to the component level through the application of the force flow model to the developed model.