The radio antenna for station WEML sits on a nearby hill for better transmission. The support cables have been pre-tensioned to keep the antenna stable, which causes a known force on the antenna. In addition, a storm with high winds is adding a significant lateral load on the antenna. The storm could cause problems because the cable anchors were not placed to provide maximum
What is known:
- The locations of the cable anchors on the ground (in reference to
point O) are
A(x,y,z) = (66.5 m, -86.5 m, 0 m)
B(x,y,z) = (-26.3 m, -86.5 m, -63.0 m)
C(x,y,z) = (-68.0 m, -86.5 m, 42.8 m)
- The wind exerts a 1 kN force,
Fwind, on the antenna in the negative z direction,
- The antenna experiences a 5.2 kN compression force, Ftower, due to the pre-tensioning in the cables.
- The cables will fail at tensions greater than 4 kN.