Functional Design of Aircraft Engines in VZLU with Autodesk Inventor

Functional Design of Aircraft Engines in VZLU with Autodesk Inventor

Among its many research activities, the Engine Division has been involved in a design of modern reduction gear-box for a small prop-jet aircraft engine representing a unique category in today’s turbine aircraft engine global market. The engine is being constructed in co-operation with PBS Velká Bíteš, which has already developed commercially successful turbojet engine TJ 100 A. This engine, as the so-called core, forms the basis for the prop-jet engine TP 100, which is also being finalized by PBS.

The key constructional challenge of the small prop-jet engine project was a design of modern reduction gear-box. The engine is twin-shaft (with free turbine) - flow of hot gas generated by engine core powers the spinning free turbine whose shaft enters the reduction gear-box while spinning the airscrew shaft. The purpose of reduction gear-box is to lower high rotational speed of the free turbine to rotational speed appropriate for aircraft propellers. Today, modern software enables to eliminate a number of tests on physical prototypes or to conduct them more effectively and thereby significantly boosts efficiency of the complete process of engineering product development. Autodesk Inventor, as a top representative of such software, dramatically accelerates the phase of construction works.”

With regard to analysis of activities necessary for designing complicated aircraft turbine engine nodes, Autodesk Inventor as a highquality software tool became the customer’s choice. This, in conjunction with highly experienced construction enginer mastering the work on CAD systems, enabled designing the reducer construction quickly and effectively.

A major reason for choice of this software was positive experience from previous projects and knowledge of its environment, as construction engineer responsible for designing the reducer had been already working with Autodesk Inventor. Another key reason was the fact, that the solution has very effective price / performance ratio for the required volume and segment.