Methodology of delivering space parts, tools and accessories to a near Earth orbital station on the basis of the reliability factor

The main aspects of the deployment of multi-module orbital manned stations are considered. The methodology for planning the delivery of spare parts, tools and accessories used in planning of transport operations to the International Space Station, is analyzed. It is shown that its application is related to the problem of mathematical programming with a large number of variables, which complicates the process of finding the optimal planning option in terms of economic efficiency. Transport operations to national manned orbital stations are carried out less frequently as compared to the International Space Station due to the enormous costs of spacecraft launches taking into account possible emergency situations. An approach to improving the methodology for planning the delivery of spare parts, tools and accessories for possible use on national manned orbital stations is proposed. It consists in taking into account the reliability of on-board equipment. The advantage of the improved methodology is simplification of planning transport operations without the use of mathematical programming. In addition, the improved methodology is clear, simple and can be implemented step by step.