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PurposeTotal productive maintenance (TPM) has been widely recognized as a strategic weapon for improving manufacturing performance. Evaluate efficiency of TPM implementation is considered as a key element in order to motivate staff and to give decision-makers more confidence.Design/methodology/approachThis study consists in developing a new method of evaluating TPM implementation, relying on analytical models and considering two preventive maintenance strategies: periodic and age-dependent.FindingsThe preventive maintenance period and TPM period defined as decision variables are obtained simultaneously by maximizing the expected profit under TPM implementation. A numerical example is presented and a sensitivity study is developed to validate the proposed models.Originality/valueThe aim of this research is to quantify, through analytic development, the impact of TPM implementation in a company by calculating and comparing the profit made with and without TPM.

Industrial systems are sometimes designed to operate their missions with finite breaks scheduled between two consecutive missions. During the break, maintenance actions can be carried out. Given the limited break duration, in addition to other limited maintenance resources, not all components can be maintained. To meet the required performance of the system during the next mission, it is often required to select components to be maintained. This decision making problem is known as the selective maintenance problem (SMP). In the literature, the existing SM models merely rely on the assumption that repair channels are always available to perform their maintenance duties. The present paper introduces a novel and more realistic formulation of the SMP where the unavailability of the repair channels is accounted for. Two integrated non-linear programming models are developed and solved, without loss of generality, in a series-parallel system under multiple repair channels. The results derived allow to show the validity and the accuracy of the proposed approach.

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Abstract. Maintenance activities represent a significant pillar in industry. Its real goal consists at improving the production systems productivity. Specially, TPM represents one of the main evolutions of the maintenance methods in order to improve the machines efficiency by a proactive approach. This paper presents an overview of several TPM implantations and especially efficiency and effectiveness measurement of the TPM in several industries. In a second hand, a proposition of possible extension about analytical assessment of the TPM performance, based on both technical and economic criteria, is presented.