| 摘要:采用有限元分析法对某机型排气集管在高温、高压废气作用下的变形进行了分析。分析表明:在排气集管轴向，废气压力对排气集管的变形影响较小，而以热负荷造成的变形为主；在排气集管径向，废气压力和热负荷造成的变形均较大。分析结果可指导膨胀节的选型和安装。 |
| 关键词: 排气集管 膨胀节 选型 有限元分析 |
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| Selection and Analysis of Two Stroke Low Speed Diesel Engine Exhaust Manifold Expansion Joint |
| Zhang Yaozhong,Shen Li,Zhou Xiuya,Ju Lili |
| China Shipbuilding Power Engineering Institution Co., Ltd., Shanghai 200120 |
| Abstract:Based on the finite element analysis of a certain type of diesel engine′s exhaust manifold, the deformation caused by high temperature and high pressure is analyzed. The results show that in axial direction of the exhaust manifold, the exhaust gas pressure has small influence on the deformation of the exhaust manifold, the deformation is caused mainly by thermal load. However, in radial direction, both exhaust gas pressure and thermal load may cause big deformation. The research results offer reference for the type selection and installation of expansion joint. |
| Key words: exhaust manifold expansion joint type selection finite element analysis |
