| 摘要 |
The invention discloses means to reduce the noise and vibration of gear sets by (a) minimizing the transmission error resulting from variations in the mesh stiffness at different phases of tooth engagement and (b) reducing the maximum rate at which load is transferred to the driven gear. A substantially constant mesh stiffness is achieved by shaping the teeth and the field of contact so the product of incremental tooth contact line length and tooth pair stiffness per unit length of tooth contact line integrated over the field of contact does not vary significantly as the tooth contact lines move across the field of contact. In addition, the maximum rate at which load is transferred to the driven gear is substantially reduced by shaping the teeth so the tooth contact lines intersect the entry and exit boundaries of the field of contact at an angle. |
