张洪亮, 刘志伟, 曲传咏. Study on Fatigue Damage and Clearance Evolution of TBM Main Bearing[J]. Mechanical Science and Technology for Aerospace Engineering, 2025, 44(11): 1853-1859.
DOI:
张洪亮, 刘志伟, 曲传咏. Study on Fatigue Damage and Clearance Evolution of TBM Main Bearing[J]. Mechanical Science and Technology for Aerospace Engineering, 2025, 44(11): 1853-1859. DOI: 10.13433/j.cnki.1003-8728.20230351.
Study on Fatigue Damage and Clearance Evolution of TBM Main Bearing
As a key core component of Tunnel Boring Machine (TBM)
the main bearing plays the role of carrying and transferring loads. The damage of the main bearing will cause abnormal load distribution and reduce the service life of the main bearing. Based on Abaqus
the fatigue damage behavior of TBM main bearings under the condition of low speed and heavy load was simulated. In addition
the damage evolution law of the main bearing in the time domain and the space domain was studied. Then
the clearance evolution of the main bearing was predicted based on the fatigue damage model. The research results show that the damage risk of the raceway is greater than that of the roller
and the damage risk of the main pushing raceway is greater than that of the other two raceways. When the damage is below 0.3
the clearance of the main bearing increases slowly. And when the damage is above 0.3
the clearance of the main bearing increases rapidly.