| 摘要:以MAN6L27/38柴油机曲轴为研究对象，运用有限元计算分析方法，通过对主轴承施加不同的边界条件，对计算过程耗费资源、约束状态的模态、最大应变与应力值进行对比分析。分析结果表明:不同约束边界条件计算结果虽均能满足使用要求，但差异性较大；综合分析显示，接触算法是模拟轴承的理想约束。 |
| 关键词: 曲轴 轴承 约束 接触算法 有限元分析 |
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| Effects of Different Constrained Treatments of the CrankshaftBearing on Finite Element Calculation |
| Li Jian,Zhou Ruiping |
| Wuhan University of Technology, Hubei Wuhan 430063 |
| Abstract:Taking the MAN6L27/38 diesel engine crankshaft as the research object, using finite element analysis method, different boundary conditions were applied on the main bearing to carry out comparative analysis on the calculation process of resource consuming, constrained modal, the maximum strain and stress values. The results show that though the calculation results of different constraint conditions are able to meet the application requirements, they differ greatly. Comprehensive analysis shows that contact theory is the ideal constraint of the main bearing. |
| Key words: crankshaft bearing constraint contact theory FEM |
