Load distribution

[jeyaselvan]

thread384-165178

How do we hand calculate the static load distribution (with known mass, inertia & CG) at each mount (know stiffness and locations relevant to CG) support manually for a 4 mount support system? Static indeterminate for more than 3 supports and force & moment balance does not help!

I was interested to have static deflection closer at each mount location.

Thanks in advance

Jeyaselvan

 

[GregLocock]

Draw it in side view, and in front view. the location of the rigid body is controlled by CGZ, and pitch and roll. This also gives you the deflection of each mount, and hence the force it supplies.

That should allow you to write enough independent equations to solve it.

What you have done is to invoke geometric compatibility as an additional constraint, I can't remember what the structures boys call it, but that is how you solve simple redundant systems.







Cheers

Greg Locock

SIGlease see FAQ731-376 for tips on how to make the best use of Eng-Tips.