DESCRIPTION

TECHNICAL FIELD

The invention describes the Concurrent Engineering approach to finalize the Pipe Assemblies Drawings of Light Combat Aircraft.

BACKGROUND OF INVENTION

Light Combat Aircrafts are very compact nature in which various systems are interconnected in intricate fashion. And also involves huge number of Pipe assemblies which are routed throughout the aircraft to control various systems in addition to Looms and cables lines etc

All these pipe assemblies have to meet Interchangeably from aircraft to aircraft. Design and release of these drawings is a challenging task for designers due to complexity of pipe assemblies and lack of space availability. Design of such systems directly on 'Digital Mock-up Unit' (DMU) offline does not resolve issues of fouling and clashes of pipe assemblies since it ignores various manufacturing and practical aspects and it results in continuous change of design and drawings repeatedly. Freezing of such a complicated system design and drawings consumes lot of time due to repeated iterations of modification in the design therefore a close loop feedback mechanism is requires between design and shop for freezing of drawing.

SUMMARY OF INVENTION

Concurrent Engineering approach gives the brief idea to finalize the drawings within shorter time by considering 'Design for Manufacturing' (DFM) and 'Design for Assembly' (DFA) at design stage itself. This approach is simple and reduces lot of design modification iterations in complex environment.

' PROCESS DETAIL DESCRIPTION

Concurrent Engineering approach to freeze the Pipe assemblies drawings are as follows :

a) Release the Line Routing drawing of Pipe assemblies as per the functional requirement, without finalizing the shape.

b) Fabricate pipe assemblies as per Line'Routing drawings by template method on actual aircraft.

c) Finalize the pipe assemblies including end fittings on aircraft by considering gap requirements between the pipe assemblies /other related parts and maintain this as 'Red Band Samples' (RBS).

. jj- gcgn t^e pjna|j2e tne pjpe assemblies (RBS) developed by.template method and convert to 'Digital Mock-up Unit'

e) Test for functionality and recheck the gaps between the pipe assemblies.in 'Digital Mock-up Unit'

f) . In case of Minor change in design requirements, update in DMU.

g) Freeze the drawings and release for productionisation.

DRAWINGS

Fig.l: Concurrent Engineering approach to freeze Pipe assembly drawings - Flow Chart

Fig.2: Red Bend Sample(RBS)

CLAIMS

We claim concept of concurrent Engineering approach to finalize the Pipe Assembly Drawings of Light Combat Aircraft'.