Mechanical Engineering: Ch 13: Virtual Work Applications (3 of 39) What is Virtual Work Used For?

[@shalinisinghaniya423]

your explanation is nice

[@klam77]

solid presentation.

[@MichelvanBiezen]

Glad you liked it! 🙂

[@albajasadur2694]

how can we apply this virtual work principle in beam bending problems ? It seems to be not that straight forward to calculate the factor "a/L".

[@MichelvanBiezen]

We still have to make those videos. We plan to work those in a few weeks.

[@shalinisinghaniya423]

how we can solve virtual works problems in mechanics

[@joshuaakpan1259]

@Michel van Biezen Good day Sir, why take the fraction a/L???

[@MichelvanBiezen]

Think of it this way, the larger "a" is the larger Rb is. It is the fractional distance along the bearm.

[@apostle9209]

you can solve by proportional sides bcoz the triangles are similar

[@mrmagoo-i2l]

@@MichelvanBiezen Thats an easy way to confuse people.
Using multiple maths tricks and assuming knowlege is never a good idea.

[@deveshkumarrai8573]

Fraction of that???

[@07alpadnan]

If the rightmost point moves up by du, then the point where F is applied moves up by a/L*du.

[@dariusah.5736]

You use the théorème of Thalès : dx/du=a/L , because we look for the déplacement dx of the force F, with the proportionality