| Citation: | TAN Deqiang, YANG Yongsheng, HU Yue, et al. Frictional thermal simulation analysis of self-lubricating joint bearings for helicopter main rotor under the complex load history[J]. Journal of Aerospace Power, 2025, 40（2）：20220659 doi: 10.13224/j.cnki.jasp.20220659
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The thermal-structural coupling model of the self-lubricating joint bearings on the main rotor of the helicopter was established subjecting to frictional thermal simulation analysis under the measured load history. Then, the dynamic mechanical response characteristics of the bearing and the temperature changes of the inner ring and the liner were obtained. The bearing equivalent stress, contact stress and maximum deformation under thermal-structural coupling analysis and transient dynamic analysis were compared. The results showed that when the bearing started to rotate, its velocity and acceleration curve fluctuated greatly before they tended to stabilize. During the whole cycle, the highest temperature of the bearing occurred mainly at the intersection of the inner ring and the liner along the radial load direction, with a calorific value of
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