| 摘要 |
Installation positions of bearings other than a reference bearing are temporarily set, as data, based on a reference installation position of the reference bearing on the crankshaft. Crankshaft deflection on each crank throw is calculated based on the temporary installation positions by using transfer-matrix method, and then, an evaluation value is calculated based on a difference between a calculated deflection value and an actually measured deflection value. The evaluation value and a permissible value are compared with each other. When the evaluation value exceeds the permissible value, a binary temporary installation height is produced by using a genetic algorithm, and an evaluation value is calculated again based on the new temporary installation height. Then, the same steps are repeated until an evaluation value comes below the permissible value. <IMAGE> |
