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Fundamentals of Stress and Vibration
[A Practical guide for aspiring Designers / Analysts] 1. Mathematics for Structural mechanics

Therefore, from [Fig 1.44], we have moments due to force ‘F ’ to be:

x

[Fig 1.44: Moments due to force 'Fx']

Moment due to F at a distance r = r k × F i = r F j
x
x
z x
z
z

Moment due to F at a distance r = r j × F i = r F −k
z x
x
y
x
y

Similarly, from [Fig 1.45], we have moments due to force ‘F ’ as follows:
y

[Fig 1.45: Moments due to force 'Fy']

Moment due to F at a distance r = r k × F j = r F −i
z
y
z
z x
y

Moment due to F at a distance r = r i × F j = r F k

x
y
x
x y
y
QP No. SSC/Q4401, Version 1.0, NSQF Level 7, Compliant with Aero and Auto Industries,
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