An integrated model of production scheduling and maintenance planning under imperfect preventive maintenance

Abstract

Chen X, XiAo L, ZhAng X, XiAo W, Li J. An integrated model of production scheduling and maintenance planning under imperfect preventive maintenance. eksploatacja i niezawodnosc -Maintenance and Reliability 2015; 17 (1): 70-79.

An integrated model for maintenance policies and production scheduling based on immune–culture algorithm

“…However, only single selection mechanism (clone selection or the best keeping) 19 is conducted in most AIS and thus cannot maximize the usage of information in the iteration process results in limiting convergence speed. For this reason, we improve the ICSA 4 (one of AIS) based on CA 27 and design the AICS-CA to meet the timeliness requirement in our present research. In AICS-CA, there are two main aspects: (a) the feasible solutions set (population space) should be divided into certain amount of subpopulations according to evolution direction, and (b) corresponding selection strategies are determined relying on the evolution of these subpopulations.…”

“…Processing time of each job on each machine, and the cost and time of imperfect PM at system-level. 4 Machine Required processing time (h) Imperfect M1 25 17 41 74 37 72 11 31 32 27 2 180 4 2000 M2 15 41 155 12 95 34 77 39 92 114 5 230 6 4000 M3 12 22 83 24 72 62 31 141 42 21 4 170 5 3600 M4 40 36 121 48 52 32 26 56 74 90 3 200 5 2700 M5 60 58 160 78 153 162 32 79 102 52 5 500 7 2000 PM: preventive maintenance.…”

“…The processing time of each job on each NC machine tool is listed in Table 2, where J1 denotes the first job and M1 represents the first NC machine tool, by such analogy. The calendar delivery time, unit-time production value, unit-time production cost, and unit-time tardiness cost were also given by Chen et al 4 Parameter estimation, model selection, and dependence testing…”

“…1,2 Although some scholars considered maintenance and production scheduling jointly, they only considered the system-level maintenance policy irrespective of single-component or multi-component system. 3,4 However, for some valued multi-component repairable systems, maintenance may be conducted at componentlevel and system-level simultaneously for cost saving. Therefore, there is a genuine need to develop an integrated model for maintenance and production scheduling and the maintenance is conducted at both component-level and system-level.…”

“…It is challenging to propose maintenance policies at both component-level and system-level because (a) the multi-component repairable system may have overall system dependency caused by complex interactions among components [5][6][7] and (b) the failures among components are under competing risks, 8 which means if any component fails, the system will fail and only the failure time of the failed component can be recorded. For simplicity, some previous papers studied maintenance policy at system-level by considering the machine as either single-component system 4,9 or fully independent multicomponent system. 10,11 However, this kind of simplification may be improper for modelling the failure time of multi-component repairable system.…”