Investigation of the stress state of a flexible wheel made of PPA-CF composite material

A promising direction in the development of drive technology is the use of gears created using additive technologies. This method is highly efficient, cost-effective, waste-free, and quick to reconfigure equipment. The use of wave gears made on a 3D printer requires additional theoretical and experimental studies of the strength of a flexible wheel. A method for calculating a flexible wheel in the ANSYS APDL software package is proposed. A feature of the finite element flexible wheel calculation is the large number of small teeth, which requires the use of a significant number of nodes and elements. To reduce the amount of RAM, the superelement method is used. Computational studies of the stress-strain state of a flexible wheel of a twin-wave gear transmission with a gear ratio of 30, the second stage of which is a gear clutch, have been carried out. The flexible wheel is made of carbon-filled polymer material PPA-CF. Circumferential and axial stresses in the hazardous areas of the flexible wheel located on the transition surfaces of the teeth have been determined. It is shown that the stresses in these directions are less than 2 times the tensile strength.
EDN: CSKQTN, https://elibrary/cskqtn

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