Determination of Optimal Counterweight Configurations for Multithrow Crankshafts 960354
Balancing of the crankshaft to minimize bearing loads is a critical concern in the design of multicylinder engines, especially high-speed racing engines. In this paper a numerical model is developed for the crankshaft-connecting rod-piston assembly that considers reciprocating forces as well as gas pressure forces. The model is used in an optimization scheme to design crankshaft counterweights which minimize main bearing forces. A V-8 NASCAR engine is analyzed. The results indicate reductions in average bearing force of as much as 73% while peak force is reduced as much as 41%.
Citation: Sharpe, R., David, J., and Lowndes, E., "Determination of Optimal Counterweight Configurations for Multithrow Crankshafts," SAE Technical Paper 960354, 1996, https://doi.org/10.4271/960354. Download Citation
Author(s):
Robert N. Sharpe, J. W. David, Erik M. Lowndes
Affiliated:
Accurex Environmental Corp., North Carolina State Univ.
Pages: 8
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Multidimensional Engine Modeling-SP-1169, Modeling of SI and Ci Engines-SP-1168, SAE 1996 Transactions - Journal of Engines-V105-3
Related Topics:
Racing engines
Crankshafts
Bearings
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