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Connecting Rod with Enhanced Performance through Fast and Precise Bolted Joint Design Methodology
Technical Paper
2016-36-0406
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Connecting rod joint optimization is a well-known design procedure used for new cranktrains, not only for truck applications, but also for passenger cars. Big end bolted joint is one of the most critical connecting rods regions under engine operation, especially due to joint opening phenomenon and consequent engine failure. Thus, in order to have a robust design, it is usually applied safety factors to absorb this design margin. However, due to the continuous increase of engine loads to attend different emission regulations, this design condition became a vital parameter for connecting rods. thyssenkrupp developed a joint evaluation methodology to be applied during conrod design, presenting better accuracy when compared to the standard development procedure, the VDI 2230 part 1, thus leading to better performance for real engine application. This approach combines the VDI design algorithm with a simple and fast finite element model for force and moment extraction. To validate it, the present work compares thyssenkrupp joint design methodology with VDI2230 part 1 approach and with a non-linear numerical model, which evaluates the joint behavior by means of a finite element analysis with frictional contacts and parallel threaded bolts.
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Authors
- Rafael Aguera Rezeno da Silva - Thyssenkrupp Metalúrgica Campo Limpo Ltda Faculdade de Engen
- Alex de Souza Rodrigues - Thyssenkrupp Metalúrgica Campo Limpo Ltda
- José Elias Tomazini - Faculdade de Engenharia de Guaratinguetá (FEG-UNESP)
- Marcelo Sampaio Martins - Faculdade de Engenharia de Guaratinguetá (FEG-UNESP)
- Kauê Cruz Silva - Metalac SPS Industria e Comercio Ltda
- Michele Santos - Metalac SPS Industria e Comercio Ltda
Citation
da Silva, R., Rodrigues, A., Tomazini, J., Martins, M. et al., "Connecting Rod with Enhanced Performance through Fast and Precise Bolted Joint Design Methodology," SAE Technical Paper 2016-36-0406, 2016, https://doi.org/10.4271/2016-36-0406.Also In
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