Aiming at the issue of inaccurate deflection of jet during the operation of the adjustable vector nozzle mechanism in complex high-temperature/heavy-duty environments, due to wear can affect the accuracy of nozzle throat/outlet area, a wear prediction method considering temperature effect is proposed. Firstly, the wear and friction models considering temperature are established. According to the roller-bushing motion pair motion characteristic, the wear profile update model is established. Combined with finite element theory, the mechanism dynamics model considering temperature is established. Then, based on the actual experimental data, the established wear and friction models are modified. Finally, predict the wear of the roller-bushing motion pair. The results indicate that the wear of the roller is most severe around 270°, and the wear area of the bushing increases with the number of cycles. As the temperature increases, the wear of the bushing decreases, but the wear of the roller becomes more severe.
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