Engineering Inspiration by Peter SturgessEngineering consultants specialising in braking systems, other engineered systems, specifications, component integration, safety critical systems etc.
Acres Geometry

<< Back to Drum Brakes

(FREDERICK ALBERT) STEPNEY ACRES proposed a graphical method for drum brake design whilst working for Vauxhall Motors in 1946. It quickly allows the centre of pressure and brake factor to be calculated and being graphical gives a visual perspective to what's happening.

 

Drawing Acres Geometry

To see how to construct Acres Geometry, click on each step in turn.

Step>
1
2
3
4
5
6
7
8
9
10
>

 

setstats 1