Aircraft interior design should provide a flawless full service from the project phase to the turnkey option for the completion of the flight environment. Skills, planning and aircraft design creativity are required to satisfy the customer. Building on solid technological experience and a modern hand-crafted approach, products and hand-manufactured supplies must be tested and certified for aeronautical applications.
Aircraft interior designers integrate aesthetic requests, functional needs and creativity, according to the highest professional standards. Exclusivity is an important combination of materials and design. An environment which is unique, elegant and classy needs high value materials and able craftsmen who provide interiors with endurance, safety and pleasure.
14CFR part 25.562
Every aircraft cabin re-configuration, in all types of aircraft (Transport, General Aviation and Rotorcraft), needs to be certified as per the existing Code of Federal Regulation governing that particular type of aircraft. The current practice used to comply with Federal Aviation Regulations (FAR’s) related to aircraft cabin seating and aircraft cabin interior design is to conduct full-scale system sled tests.
This approach can be expensive and the test results are sensitive to changes in test conditions, such as the sled pulse, dummy calibration, seat belt elongation, etc., resulting in scatter in the results. With the development of the more robust codes for the analytical tools, it should be possible to successfully capture the test conditions by one of these tools and to obtain results which compare favourably with the actual tests results. Part 25 category of transport aircraft, 14CFR 25.562 states: “Each seat type design which is approved for crew or passenger occupancy during takeoff and landing must successfully complete dynamic tests or be demonstrated by rational analysis based on dynamic tests of a similar type seat, in accordance with each of the following emergency landing conditions” and then the conditions are stated.
When these federal regulations were enacted, the ability of analytical tools was limited and there did not exist enough data to show that certification could be performed using analysis. Is it possible to identify the conditions under which a Part 25 type aircraft could be certified by analysis for compliance with the 14 CFR 25.562 regulation, and also to identify the validation criteria when using analytical tools?
The validation criteria for the analytical model can be developed, a full factorial design of experiment DOE analysis can be performed to determine the effect the factors have on the dynamic response of the seat, the dummy and the restraint systems. Factors can be chosen such as the seat cushion type, thickness of the cushion and the rigidity of the seat, the seat set back distance, seat belt type, type of bulkhead and the coefficient of friction of the impact surface.
There is a demand for a new integrated analytical system methodology that would help the aerospace cabin interior designers in developing crashworthy cabin interiors. A graphical user interface would help the cabin interior designers to optimise their design by selecting components that would help in minimizing the
injury criteria. This would reduce the time it takes to design these configurations and would reduce the cost of certification while improving the safety of the flying public.
Airlines brand proposition.
Aircraft interior design must never lose its grip on safety regulations even though aircraft design creativity demands such close attention to the the airlines brand proposition.