Research on Flexible Equipment Maintenance Process Scheduling Problems Based on HNSGSA Algorithm

Table 1

The ranges of condition data.

Parameters	Ranges
The number of professional processes in equipment	6–8
Codes for the disassembly process	10, 20, 30, 40
Codes for the assembly process	19, 29, 39, 49
Codes for the professional component maintenance process	11–14, 21–24, 31–34, 41–44
Number of maintenance machines for the processes of disassembly and assembly	1, 2, 3
Number of maintenance machines for the professional component maintenance	4–19
Number of the general maintenance machines	20–21
Number of virtual machines	22–33
Quantity of the machines applicable to all processes	1–2
Maintenance time , of the disassembly and assembly	30–40
Maintenance time of the professional components	20–30
Quantity of constraint in the processes of one professional maintenance	3–8
Quantity of maintenance personnel (-level, -profession, and -piece of equipment)	; ;
Man-hour standard	30, 40, 50