| 摘要:针对铸铝气缸盖底板变形冲缸垫，顶板变形开裂的故障，借助有限元分析得出气缸盖在工作中受力变形的薄弱部位；在此基础上对其进行多方案的加筋强化优化设计。强化后的气缸盖在整机可靠性试验验证中效果较好，达到了预期的改进目标。 |
| 关键词: 气缸盖 结构 强度 优化 |
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| Research of the Structure Strengthening of Cast Aluminum Cylinder Head |
| Pang Wei |
| Yuchai Engineering Research Institute, Guangxi Yuchai Machinery Group Co., Ltd., Guangxi Nanning 530000 |
| Abstract:Aiming at the deformation of bottom plate of a certain cast aluminum cylinder head, which usually leads to air leakage，as well as the deformation and fracture of upper plate, FEM calculation was carried out on the cylinder head to find out the weakest regions, and accordingly the cylinder head structure was optimized by adding strengthening ribs. Then a reliability test for the optimum project was performed, and the strengthened cylinder head showed good performance and the improvement objective was achieved. |
| Key words: cylinder head structure strength optimization |
