Knee Brace Hand Calc
Knee Brace Hand Calc
(OP)
Hey all,
I am trying to solve a knee brace problem by hand but have run into some difficulties (Friday afternoon perhaps?). I am trying to match results in RISA for a cold-formed knee brace frame. Loading on it is fairly small (about 1 k lateral with minimal gravity loading). This is the first time I have tried to do a knee brace calc and I can't get it to work out. I tried method of sections but that doesn't take into account the stiffness of the members in bending so my results were not close.
Does anyone have any examples of methods to use or examples to follow? My boss was out today so I have been on my own with this since talking with my boss yesterday and would like to come up with a hand solution (even an approximation) over the weekend to match my RISA results.
Thanks much!
I am trying to solve a knee brace problem by hand but have run into some difficulties (Friday afternoon perhaps?). I am trying to match results in RISA for a cold-formed knee brace frame. Loading on it is fairly small (about 1 k lateral with minimal gravity loading). This is the first time I have tried to do a knee brace calc and I can't get it to work out. I tried method of sections but that doesn't take into account the stiffness of the members in bending so my results were not close.
Does anyone have any examples of methods to use or examples to follow? My boss was out today so I have been on my own with this since talking with my boss yesterday and would like to come up with a hand solution (even an approximation) over the weekend to match my RISA results.
Thanks much!






RE: Knee Brace Hand Calc
Seemingly an elementary answer...do a FBD of the knee brace and superimpose the FEA results on that...you should get close.
RE: Knee Brace Hand Calc
RE: Knee Brace Hand Calc
Thanks for the response. I am a little confused what you mean by superimposing the FEA results on the knee brace though. Could you perhaps shed a little more light on your response? Thanks!
RE: Knee Brace Hand Calc
Michael.
Timing has a lot to do with the outcome of a rain dance.
RE: Knee Brace Hand Calc