Aerospace Technic and Technology

The role of modernization of aircraft engines in the repair and the requirements for the design documentation. It is analyzed a set of repair documentation, which should include design repair and process documentation for repairs with product upgrades. Emphasis is placed on the repair design documentation, which includes drawings, specifications, diagrams containing data for the preparation of repair production, repair and control of the product after repair. These drawings, as a rule, contain only those images of the product, dimensions, maximum dimensional deviations, parts of the product, parts, circuit elements and additional data that are needed to carry out repairs and control of the product during and after repair. The differences of modernization from the repair of products of aircraft engines are established and the definition of repair with modernization is given. The purpose of the repair with the modernization of the aircraft engine is to obtain a new product modification (engine park). Engineers continue to improve the design of aircraft engines while pursuing, basically, two goals at once - reducing noise and reducing fuel consumption. While retaining all the advantages of the base engines, each subsequent modification of the engine is planned to implement the following new solutions: optimization of the blade shape, measures to expand the operating temperature range, the use of modern electrical systems, plasma ignition, fuel injection system with electronic control system, parts design and assembly units of light modern materials, reducing the size and more. The design documentation is an important link. These are graphic and text documents, which, complete or separately, determine the composition and design of the product and contain all the necessary data for monitoring, operation, and repair. The set of design documentation for a product or its part necessarily includes the main design document, which fully and unambiguously identifies this product and its composition.Repair with modernization is an improvement of the product, a change in the design following the requirements of modernity, which is one of the most important components of the transition to an effective market structure focused on customer satisfaction.

modernization; aircraft engine; repair; modification; design documentation; kit; repair system; drawing

GOST 2.602-2013. Remontnye dokumenty [State Standart 2.602-2013. Repair documents]. Moscow, Standartinform Publ., 2014. 20 р.

DSTU GOST 2.604:2005 Kreslenyky remo-ntni. Zagal`ni vymogy [National Standards of Ukraine Interstate Standard 2.604:2005. Unified system for design documentation. Repair drawings. General requirements]. Kyiv, Derzhspozhy`vstandart Ukrayiny Publ., 2005. 18 p.