| WU Huai-biao,PAN Jia-bao,WANG Ao.Numerical Simulation of Effect of Texture Design on Sealing Characteristics of Grease Sealing Pair[J],52(4):155-163, 191 |
| Numerical Simulation of Effect of Texture Design on Sealing Characteristics of Grease Sealing Pair |
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| DOI：10.16490/j.cnki.issn.1001-3660.2023.04.012 |
| KeyWord:grease sealing texture design leakage control sealing mechanism non-Newtonian fluid |
| Author | Institution |
| WU Huai-biao |
School of Mechanical Engineering, Anhui Polytechnic University, Anhui Wuhu , China |
| PAN Jia-bao |
School of Mechanical Engineering, Anhui Polytechnic University, Anhui Wuhu , China;National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics & Astronautics, Nanjing , China |
| WANG Ao |
School of Mechanical Engineering, Anhui Polytechnic University, Anhui Wuhu , China |
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| Abstract: |
| The work aims to investigate the effects of surface texture design and non-Newtonian characteristics of grease on sealing performance of grease seal pair, and obtain the optimal structural parameters and working conditions in texture design. Based on the Herschel-Bulkley rheological model of grease and the principle of non-contact mechanical seal, the viscose-temperature relationship of grease was fitted, and the linear groove texture was selected to establish the end seal model. The pressure distribution, temperature distribution and apparent viscosity distribution of seal end face flow field were obtained by numerical simulation. The influence law of different inclination angle and speed on seal clearance flow field was analyzed, and other factors affecting leakage, such as grease temperature, groove number, length, width, depth and seal clearance, were systematically explored. |
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