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| Law of Ice Impact Damage of Rotor in Transonic Fan and Improvement Design of Anti-ice Impact |
| Received:March 14, 2024 Revised:May 16, 2024 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2024.08.012 |
| KeyWord:aeroengine transonic fan blade falling ice damage law improvement design |
| Author | Institution |
| XING Huaicheng |
School of Aero-engine, Shenyang Aerospace University, Shenyang , China;Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China |
| XU Qiangren |
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China;National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China |
| WANG Lizhi |
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China;National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China |
| LI Guangchao |
School of Aero-engine, Shenyang Aerospace University, Shenyang , China |
| ZHAO Wei |
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China;National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China;School of Aeronautics and Astronautics, University of Chinese Academy of Sciences, Beijing, , China |
| ZHAO Qingjun |
Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China;National Key Laboratory of Science and Technology on Advanced Light-duty Gas-turbine, Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing , China;School of Aeronautics and Astronautics, University of Chinese Academy of Sciences, Beijing, , China;Beijing Key Laboratory of Distributed Combined Cooling Heating and Power System, Chinese Academy of Sciences, Beijing , China |
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| Abstract: |
| The work aims to reveal the impact damage law of aeroengine fan rotor blades caused by the shape, trajectory and attitude of falling ice and enhance the ability of blades to resist ice impact. LS-DYNA was used to conduct numerical simulation to investigate the impact process between falling ice and blades, and the improvement design of blades. The extent of impact damage to the blades was affected by the structural strength of falling ice. Under the same impact conditions, the spherical ice caused the most damage to the blades whereas the flake sustains the least amount of impact damage. The damage degree of blades was determined by both the relative velocity between the blades and the falling ice and the mass of the ice cut by blades. The plastic deformation degree of blades increased with the mass of falling ice cut by blades. The blades suffered the most severe damage when the incidence angle of falling ice was 45°, with the maximum impact force of 17 828 N and the maximum internal energy of 126 J. The leading edge of blade experienced the greatest impact load and the most serious plastic deformation when the ice flake rotated 90° around the y-axis from its initial attitude. After the improvement, when the blades were impacted by the falling ice at the incident angle of 45°, the maximum internal energy of the blades decreased by 16%, the stall margin increased by 16.2%, and the peak efficiency increased by 0.33%. The impact damage position of transonic fan rotor is near the leading edge and increasing the inlet geometric angle and local thickness of the blades can significantly enhance the ability to resist ice impact. |
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