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Theoretical and Practical Aspects of Balancing a V-8 Engine Crankshaft

机译：平衡V-8发动机曲轴的理论和实践方面

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摘要

Crankshafts must be balanced statically and dynamically before being put into service. However, without pistons and connecting-rod assemblies, a non-symmetric crankshaft is not in dynamic balance. Therefore, it is necessary to apply equivalent ring-weights on each of the crankpins of the crankshaft when balancing it on a dynamic balancing machine. The value of the ring weight must be accurately determined, otherwise all advantages that are derived from balancing would be of no avail. This paper analytically examines the theoretical background of this problem. Formulas for calculating the ring weights are derived and presented. These formulas are applicable to a generic class of crankshafts of V-type engines with piston pin offset. Also, practical consideration, such as the design and manufacturing of these ring weights, the method of testing, and correction is addressed.
机译：必须在投入使用之前静态和动态地平衡曲轴。然而，没有活塞和连接杆组件，非对称曲轴不处于动态平衡。因此，在将其平衡在动态平衡机上时，必须在曲轴的每个曲轴上施加等效环重。必须准确地确定环重量的值，否则源自平衡的所有优点都无济于事。本文分析了这个问题的理论背景。推导和呈现用于计算环重的配方。这些公式适用于具有活塞销偏移的V型发动机的一般曲轴。此外，实际考虑，如这些环重量的设计和制造，测试的方法和校正。

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