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| 活塞热疲劳分析 | |
| 引用本文： | 谢琰,席明智,刘晓丽.活塞热疲劳分析[J].柴油机设计与制造,2013,19(1):11-14. |
| 作者姓名： | 谢琰 席明智 刘晓丽 |
| 作者单位： | 1. 长安汽车动力研究院,重庆,400021 2. 内蒙古工业大学能源与动力工程学院,呼和浩特,014010 3. 渤海船舶职业技术学院,葫芦岛市,125000 |
| 摘 要： | 用Pro/E建立活塞几何模型,在ANSYS单元库里选取热结构耦合单元,对模型网格进行优化,并对活塞温度场进行标定,然后进行热机耦合分析计算,得到活塞温度场、热应力场和变形。计算结果表明,在低频热疲劳下,活塞循环次数最少约是1 120 000次,这为活塞的结构改进和优化提供了依据。 |
| 关 键 词： | 活塞 热应力 热变形 热疲劳 |
Analysis of Piston Thermal Fatigue |
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| Xie Yan , Xi Mingzhi , Liu Xiaoli.Analysis of Piston Thermal Fatigue[J].Design and Manufacture of Diesel Engine,2013,19(1):11-14. | |
| Authors: | Xie Yan Xi Mingzhi Liu Xiaoli |
| Affiliation: | 1.CHANGAN Automotive Motor Engine R&D Institute,Chongqing 400021,China;2.School of Energy and Power Engineering,Inner Mongolia University of Technology,Hohhot 010051,China;3.Bohai Shipbuilding Vocational College.Huludao 125000,China) |
| Abstract: | A 3-D model of piston was built with Pro/E and thermal structure couple unit was obtained from ANSYS unit base.Then optimization of model mess and calibration of piston thermal field were made.Thermal couple analysis was carried out and piston thermal field,thermal stress and thermal deformation were obtained.The analysis result shows that the number ofpiston life circulation is 1 120 000 at least under lowfrequent fatigue,which provides a base for the improvement and optimization ofpiston structure. |
| Keywords: | piston thermal stress thermal deformation thermal fatigue |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
