Wednesday, April 11, 2018

Moment of Three Vector forces about a Point O and its Resultant (solved example)


Determine the resultant moment about the fixed end at joint O.
F1 = (-60i + 40j +20k) lbs
F2 = (80i + 40j -30k) lbs
F3 = (40i + 20j - 15k) lbs
A) Show all steps using Cartesian Vector Notation.
B) Show all steps using Scalar Notation.
C) Show the final orientation of the MO on a sketch.

If you have any doubt, please leave a comment below.


Solved Example of Pinned Truss - the average normal and shear stresses in members and pins respectively and Pin Diamater

Hi, A simple truss has pin-connected members. The members carry only axial forces, but the pins have to bear the shear stresses. Given exa...