Bending Performance Test and Simulation Analysis of Composite Helicopter Platform Plate

Helicopter platform is used for the take-off and landing of helicopter. According to the bearing characteristics of platform under helicopter take-off and landing conditions, a composite helicopter platform plate is independently developed. The mechanical simulation model of composite platform plate is established by using general finite element software. The calculation results show that the maximum deflection and strain of platform plate are within reasonable ranges. The bending performance test of the composite platform plate sample in the actual installation state is carried out, and the test data are basically consistent with the simulation results, which verifies the accuracy of the finite element calculation method. On this basis, aiming at the bending performance test of the composite platform plate, the influences of different factors on the bending performance of platform plate are studied from the respective of reinforcing material modulus, test support mode and bolt preload. The research results can provide references for the structural design of helicopter deck.