Design, analysis and construction of a composite camera gimbal

The design, FE analysis, deflection and strength optimisation, manufacture and physical testing of an all-composite camera mounting gimbal for airborne use was discussed. The existing magnesium design is considered too heavy and its metallic structure is both prone to harmonic oscillations and radar detection, thus a new composite design has been proposed. The use of finite element packages allowed the complex fibre angle optimisation to be performed. A number of prototype gimbals were manufactured using a new process of a closed mould technique, with expanding silicone inserts and a preimpregnated carbon fibre/epoxy resin woven material. Finally, these prototypes were physically tested to check that they met the strength criteria and to confirm the FEA results.