Design and performance test analysis of sine-wave curved carbon fiber composite membrane disk

The diaphragm plate is one of the key components of elastic coupling. The use of carbon fiber composite materials (CFRP) to manufacture elastic coupling diaphragms can better improve the operation of the shaft system in the transmission system. Diaphragm surface design is a key content of diaphragm design. In this paper, a sine-wave curved membrane disk structure is designed based on ABAQUS. The effects of different surface forms, ply angles and ply angle ratios on the structural properties of CFRP diaphragms were compared and analyzed. The CFRP sine-wave curved diaphragm plate is fabricated by the compression molding process, and experimental testing and validation research on the torque transmitting ability and the axial displacement compensation ability of the CFRP sine-wave curved elastic membrane disk structure are carried out. The test results show that the CFRP sine-wave curved elastic membrane disk structure of this pavement structure can transmit a torque of 7.5 kN·m, and the axial displacement compensation capacity can reach 4 mm, which is better than that of the ordinary elastic membrane disk structure with better axial displacement compensation capacity.