Simulation based assembly and alignment process ability analysis for line replaceable units of the high power solid state laser facility

• Discrete event simulation is applied to analyze the assembly and alignment process ability of LRUs in SG-III facility.
• The overall assembly and alignment process of LRUs with specific characteristics is described.
• An extended-directed graph is proposed to express the assembly and alignment process of LRUs.
• Different scenarios have been simulated to evaluate assembling process ability of LRUs and decision making is supported to ensure the construction millstone.

Line replaceable units (LRUs) are important components of the very large high power solid state laser facilities. The assembly and alignment process ability of LRUs will impact the construction milestone of facilities. This paper describes the use of discrete event simulation method for assembly and alignment process analysis of LRUs in such facilities. The overall assembly and alignment process for LRUs is presented based on the layout of the optics assembly laboratory and the process characteristics are analyzed. An extended-directed graph is proposed to express the assembly and alignment process of LRUs. Taking the LRUs of disk amplifier system in Shen Guang-III (SG-III) facility as the example, some process simulation models are built based on the Quest simulation platform. The constraints, such as duration, equipment, technician and part supply, are considered in the simulation models. Different simulation scenarios have been carried out to evaluate the assembling process ability of LRUs. The simulation method can provide a valuable decision making and process optimization tool for the optics assembly laboratory layout and the process working out of such facilities.