Application of the integrated assessment method when comparing «Soyuz-5» and «Amur-LNG» launch vehicles

Аuthors

Stelmakh S. F.^*, Yesipov E. N., Mikhailov V. A., Demidova N. S.

Mlitary spaсe Aсademy named after A.F. Mozhaisky, 197198, St. Petersburg, Zhdanovskaya St., 13

*e-mail: vka@mil.ru

Abstract

Currently, the spacecraft launch vehicles comprise a wide range of different launch vehicles with various payload capacities. These vehicles have different technical specifications, cost characteristics, and operational parameters. In this context, the development of a method for determining the most suitable launch vehicle is an important issue.

In the article, this task is implemented on the basis of one of the methods of comparative analysis, namely the method of integrated assessment. The integrated assessment method is based on calculating a generalized assessment of the compared objects, taking into account the evaluations according to all criteria.

The main advantage of the method is the minimal amount of information needed from an expert. The method also has the following advantages: it characterizes the level of physical properties required for the comparison object with a single number and ensures objectivity, comparability, and reproducibility in research results.

The integrated assessment method provides a comparative analysis of two medium-lift launch vehicles «Soyuz-5» and «Amur-LNG» to determine the best one for the target task at hand. The stages of solving the problem are described and a schematic representation of the algorithm for implementing the proposed comparison method is provided.

The analysis of the calculations conducted allows us to determine which launch vehicle should be prioritized based on expert assessment of criteria that determine the importance of numerical values for the main characteristics. This vehicle has an optimal set of technical, cost, and operational characteristics that are necessary to solve the given problem.

Keywords:

launch vehicle, comparative analysis, criterion, comprehensive assessment method, feature, expert assessment

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