The same body can be used for the trailers of the DIES

The power bogies and trailer bogies developed for the design of vehicles also allow it to be placed underneath any body without modification. This scheme, together with the layout principles used in the undercarriages, ensures that the same body can be used for both the locomotive towing vehicle, the electric vehicle group's vehicles (motor trains and trailers), and the trailers of the internal combustion EMUs. The various arrangements of the functional combination make it possible to design a vehicle that meets the changing requirements of the user and that requires no additional equipment to supplement the vehicle. Research on various combinations of suburban and regional trains shows that when there are only four basic structures of the vehicle body, 10 different comfort vehicle plans are available, with 6, 2 and 4 seats of private rooms with luggage Stores, cloakrooms, telephone booths, official vehicles manufactured on this basis, as well as canteens and dining rooms. See the plan layout of these combinations.

The interior trim of the vehicle equipment and products is installed on a universal body. If necessary, the same body can be used to convert and produce various comfort and different-purpose vehicles, avoiding the large-scale repair process and the installation work of the workshop. This will undoubtedly increase the attraction of vehicles to passengers. The railway bureau can order vehicles according to regional characteristics, especially residents' ability to pay 26 foreign railway vehicles, and transform the vehicles according to changing requirements during their lifetime. The modular structure of manufacturing experience should be further developed within a large range. We strive to expand the scope of this technology and recommend that vehicle manufacturers follow this concept. As indicated by the long-range design analysis of the order formulation of the Ministry of Transport, the use of the modular concept of the passenger locomotive and vehicle combination scheme makes it possible to manufacture large-scale locomotives and vehicles under the new economic conditions without investing a large amount of funds and possibly producing a conformity. The type of vehicle structure desired by the user. At the same time, the issue of supply guarantees for spare parts of different types of locomotives and vehicles has been solved, and operating companies can implement the general management and construction methods for the maintenance and repair of locomotives and vehicles (taking into account the widespread generalization of components).

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