軸系伝達効率

抄録

The friction loss at oil lubricated stern tube has been estimated by summing up the following heat values.
(1) The heat values at bearing have been estimated from the heat analysis of temperature measurement data under the maximum continuous output steady condition at the sea trial.
(2) The heat values at seals have been estimated from friction torque between seal ring and liner.
As a result of heat analysis, the loss of horse power was found to be 0.1-0.3% of maximum main engine output.