Simulation and Verification Technology of Helicopter Sliding Bearing Wear

SHI Jinda; WU Yunzhang; WANG Qianxu; LI Jian; SHEN Jun; GAO Fu; LIU Beibei

doi:10.7643/ issn.1672-9242.2025.12.006

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Equipment Environmental Engineering ›› 2025, Vol. 22 ›› Issue (12) : 39-48. DOI: 10.7643/ issn.1672-9242.2025.12.006

Aviation and Aerospace Equipment

Simulation and Verification Technology of Helicopter Sliding Bearing Wear

SHI Jinda, WU Yunzhang^*, WANG Qianxu, LI Jian, SHEN Jun, GAO Fu, LIU Beibei

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Abstract

The work aims to conduct research on the simulation and verification technology of helicopter sliding bearing wear, develop a helicopter sliding bearing wear simulation system, and verify its validity through experiments. The fault knowledge modeling technology was studied through the knowledge demand analysis of sliding bearing wear faults, classification of key elements, knowledge models, etc. A bearing contact mechanics simulation model was established, and the contact mechanics simulation results were analyzed to study the contact mechanics simulation modeling technology of helicopter sliding bearings. The stress-wear coupling simulation modeling technology of sliding bearing material sample models was researched. Through research on the simulation verification technology of sliding bearing wear based on the measured wear data; developing a simulation system for sliding bearing wear, and taking the handle bearing of a certain damper of a helicopter as an example, the determination test of material parameters for the wear simulation of this bearing and the friction and wear test were carried out, and the wear fault simulation model of this bearing was constructed. Based on the stress-wear coupling simulation model of helicopter sliding bearings and the simulation verification technology of helicopter sliding bearing wear based on the measured data of wear amount, a contact mechanics and wear simulation module of helicopter sliding bearings was developed, supporting model construction, multi-domain coupling simulation and visualization of simulation results. Based on the wear depth data obtained from the friction and wear tests of sliding bearing materials, the experimental conditions of 1 500 N, 1 200 N, 800 N, 500 N, and 150 N were taken as the input loads of the sample model. The maximum error between the calculated simulation data and the fitting curve was no more than ±6%, which proved the feasibility of this simulation technical route.

Key words

helicopter / sliding bearing / wear simulation / stress-wear coupling simulation model / wear performance

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SHI Jinda, WU Yunzhang, WANG Qianxu, LI Jian, SHEN Jun, GAO Fu, LIU Beibei. Simulation and Verification Technology of Helicopter Sliding Bearing Wear[J]. Equipment Environmental Engineering. 2025, 22(12): 39-48 https://doi.org/10.7643/ issn.1672-9242.2025.12.006

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