What is the effect of the installation height of dowty retarder

If the installation height of the dowty retarder is changed, the height of the contact point between the wheel and the dowty retarder cylinder will also change.

The difference between the installation height of dowty retarder (the distance from the highest point of the cylinder head to the rail surface) and the edge of the cylinder is about 10.6nm. If the relationship of the installation angle is considered, the difference between the installation height and the lowest point of the edge can reach 17mm. The height of the head cone is 9mm. After these data are determined, the height range of the contact point can be calculated according to the installation height.

The installation height of the TDJ302 dowty retarder is 58mm, and the height of the contact point between the wheel and the cylinder is 56~41mm from the rail surface. The installation height of the former contact point on the upper edge of the cone is increased, and the height of the contact point is also increased, and vice versa Ran. It can be shown that the installation height increases, the critical speed decreases, the installation height decreases, and the critical speed increases, the two are inversely related.