RINNTECH ARBOTOM - What Does the Mechanic Graph Show

ARBOTOM
®
- Manual 48
What does the Mechanic Graph show?
The ARBOTOM software presents the moment of resistance as a graph for all
wind directions. The value at 0° corresponds to the wind from the opposite
direction (180°). If the curve bends out at a certain position, the moment of
resistance reaches its minimum at this point. The red indicates the precise
direction:
• Geometric moment Wg: without consideration of internal decay and
other damages as a gray line (default)
• Weighted moment Ww: with consideration of internal decay and other
damages as a red line (default)
• Relation moment: Residual moment of resistance (W
w
/W
g
), a measure
for the remaining bending resistance of the trunk/branch under
consideration. A reduction of values to the 50% line means that the tree
has lost 50% of its ability to resist wind loads.
Colors can be changed in the options.
g
w
W
W
W
g
W
w