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Simulation of oil film thickness of coated piston ring based on ultrasonic
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Jiamei Luo1, Xiaoguang Han1, 2, Yingchun Shan1, 2, Jingsi Wang2, Jiujun Xu1, 2
Transactions of CSICE | 2025, 43(2) : 164 - 172
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Transactions of CSICE | 2025, 43(2): 164-172
Simulation of oil film thickness of coated piston ring based on ultrasonic
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Jiamei Luo1, Xiaoguang Han1, 2, Yingchun Shan1, 2, Jingsi Wang2, Jiujun Xu1, 2
Affiliations
  • 1.Key Laboratory of Shipbuilding Engineering and Transportation Industry，Dalian Maritime University，Dalian 116026，China
  • 2.Dalian Key Laboratory of Internal Combustion Engine Tribology and Reliability Engineering，Dalian 116026，China
Published: 2025-03-25 doi: 10.16236/j.cnki.nrjxb.202502020
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Aiming at the problem that it is difficult to extract the relative information of multi-interface oil film thickness with the ultrasonic liquid phase thickness measurement technology monitoring the lubricating state of the piston ring-cylinder liner friction pair of the internal combustion engine for the echo superposition, a mathematical model was proposed for measuring the oil film thickness of the four layer medium based on ultrasound, and a corresponding finite element model was established using the finite element simulation software, the sound pressure fields under different probe emission frequencies, coating thickness, and oil film thickness were simulated. The effects of ultrasonic probe parameters, coating thickness and preset oil film thickness on the simulation results of oil film thickness were analyzed. The sound pressure response with oil film thickness of 0.5—10.0μm at different emission frequencies was calculated. Results show that the calculated oil film thickness is in good agreement with the preset oil film thickness. The accuracy of this method in determining the thickness of coated piston ring oil film is further confirmed by practical measurement experiments.

piston ring  /  oil film thickness  /  ultrasonic measurement  /  finite element model
罗佳美, 韩晓光, 单英春, 王静思, 徐久军. 基于超声波的涂层活塞环油膜厚度仿真. 内燃机学报, 2025 , 43 (2) : 164 -172 . DOI: 10.16236/j.cnki.nrjxb.202502020
Jiamei Luo, Xiaoguang Han, Yingchun Shan, Jingsi Wang, Jiujun Xu. Simulation of oil film thickness of coated piston ring based on ultrasonic[J]. Transactions of CSICE, 2025 , 43 (2) : 164 -172 . DOI: 10.16236/j.cnki.nrjxb.202502020
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Article Info
doi: 10.16236/j.cnki.nrjxb.202502020
  • Receive Date：2024-03-22
  • Online Date：2026-11-06
  • Published：2025-03-25
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  • Received：2024-03-22
  • Revised：2024-07-19
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Affiliations
    1.Key Laboratory of Shipbuilding Engineering and Transportation Industry，Dalian Maritime University，Dalian 116026，China
    2.Dalian Key Laboratory of Internal Combustion Engine Tribology and Reliability Engineering，Dalian 116026，China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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