Aeronautical Engineers Australia can perform a number of complex analyses to determine the expected performance of a repair or modification. We use many advanced computer-based systems to enhance the accuracy of the results but always base the analysis on years of experience and sound engineering judgement. Our engineers are skilled in the use of traditional engineering analysis methods using the tried and tested formulas that govern aircraft performance, structures, aerodynamics and avionics to give quick and accurate results. If an in-depth study of a particular design is required, the following methods can be utilised:

Computational Fluid Dynamics

CFD uses computer modelling to accurately represent the flow patterns around a body. This can be used to calculate the lift and drag on a wing section, modification or whole aircraft. Combining this with Solid Modelling Techniques and Finite Element Analysis, a working virtual prototype of the design can be built and tested without ever leaving the drawing board. This allows modifications to be made instantaneously and delivers a proven model at a lower cost. Due to the highly complex nature of fluid dynamics however, any design is always tested in flight or in a wind tunnel to ensure that it meets the required performance and safety levels.

Finite Element Analysis

FEA uses the power of modern computers to break down a structure into a finite series of nodes and strings to form elements. This can then be used to show how a force is transmitted through a structure and also indicates any weaknesses that may need to be addressed. The more elements used, the better the approximation will be. When this is combined with solid modelling, a virtual prototype can be tested for strength and crashworthiness. This is the technique used by Swannell Racing to analyse and certify roll cages for use on high performance sports cars.

Solid Modelling

Solid Modelling uses full 3D Computer Aided Design (CAD) systems to create a virtual prototype of a design. This allows many different parts to be assembled and modifications made on the computer system, thereby avoiding the cost of making scale models and having to revise the design. It also allows both engineers and clients to view a component in 3D and shows components interacting with other parts or assemblies, or what they look like on the aircraft. When the solid model is complete, it can then be used for FEA or CFD analysis.