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International Journal of Automotive Technology 2007;8(3): 319-325. |
| PROCEDURE FOR COMPUTER-AIDED PRELOAD SELECTION OF ENGINE CONNECTING-ROD BOLTS |
| Sung-San Cho1, Hoon Chang2, K. W. Lee2 |
1Hongik university
2Hyundai Motor Company |
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| ABSTRACT |
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Preload of critical engine bolts affects the performance and durability of engines. In modern engines that pursue higher power outputs and which are of lighter weight, it becomes more difficult to select an optimal target preload in consideration of various factors such as the role and structural characteristics of joint members, joint load, and fatigue durability of bolts and joint members. A procedure to select the bolt preload using computer-aided engineering technology, especially the finite element method, has been developed. The procedure is illustrated with connecting-rod bolts for which an appropriate preload is known. The selection criteria of target preload and the finite element modeling technique for connecting-rod bolts are also explained. |
| Key Words:
Bolt preload, Computer-aided engineering, Finite element analysis, Engine connecting-rod, Joint stiffness, Fatigue durability |
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