A problem of the development of distributed information system for carrying out numerical experiments in the purpose of design and optimizations of charged particle accelerators is discussed. The infrastructure of a considered informational system should provide an effective methods for organizing calculations, storing, sharing, exchanging and analyzing the results of numerical experiments and data, remote user access to the system for group of researchers. To achieve this aim we proposed distributed architecture based on independent components: database server, high-performance distributed calculation services, web interface that provides tools for interaction of users with information system. To ensure flexible changing of models we proposed the ”lazy fill-ing” conception of database table.