beams question

[Muhammad89]

HI there,


in a question that asks to calculate the reaction forces on a beam as well as the shear and bending moments diagrams, i have found by calculation that the bending moment doesnt end up at zero but ends up at -0.01 where the measured forces end up to equal to zero if the upward and downward forces are added to one another.


what is the source of this error and why did it occur?



Muhammad89

 

[crutschow]

Does this have anything to do with electronics? I believe you're in the wrong forum.

 

[Muhammad89]

Does this have anything to do with electronics? I believe you're in the wrong forum.

hi crutschow

I know that my question has nothing to do with electronics, however, i only said that i would find someone who thinks that they are the jacks of all things not only of electronics.
if you dont have any answer to my question, please, stop it, there is no need of your comments!

Muhammaad89

 

[dknguyen]

Rounding error?

 

[Muhammad89]

Rounding error?

what do you mean?

 

[dknguyen]

what do you mean?

If it was a rounding error, it means you did the math right but...
https://en.wikipedia.org/wiki/Rounding_error

I suggest that because 0.01 seems a small amount to be off by, but i have no idea how large the numbers in the problem were to begin with.

 

[rjvh]

I agree with DKnguyen,

I would not know another reason to explane this small difference

How accurate is the diagrame you use ????

Robert-Jan