Question about friction coefficient in SW/Simulation
Question about friction coefficient in SW/Simulation
(OP)
Hi Experts,
Basically I am running a assembly simulation with 4 components
by using SW/Simulation Static. I have several contact sets beside
global contact. I have set the friction coefficient to be 0.35 for all contact sets because it is steel/steel contact with lubrication. System is fully constrainted and simulation is running smooth.
Problem is when I use "list reaction/contact..." in the result
folder to take a closer look at those contact sets. I found for
two contact sets the ratio between friction force and normal force
to be 0.04X and 0.09X, respectively. Why? Shouldn't they to be roughly 0.35? It is a big deal for us, because a part supposed to be self-locking but it is not right now because of lower friction coefficient. Thanks a lot in advance for everyone's comment.
I am using 2011 Solidworks with simulation premium (highest level). Again it is a static study, the most basic one.
Basically I am running a assembly simulation with 4 components
by using SW/Simulation Static. I have several contact sets beside
global contact. I have set the friction coefficient to be 0.35 for all contact sets because it is steel/steel contact with lubrication. System is fully constrainted and simulation is running smooth.
Problem is when I use "list reaction/contact..." in the result
folder to take a closer look at those contact sets. I found for
two contact sets the ratio between friction force and normal force
to be 0.04X and 0.09X, respectively. Why? Shouldn't they to be roughly 0.35? It is a big deal for us, because a part supposed to be self-locking but it is not right now because of lower friction coefficient. Thanks a lot in advance for everyone's comment.
I am using 2011 Solidworks with simulation premium (highest level). Again it is a static study, the most basic one.






RE: Question about friction coefficient in SW/Simulation
Tara
RE: Question about friction coefficient in SW/Simulation
TOP
CSWP, BSSE
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RE: Question about friction coefficient in SW/Simulation
Here is extremely simple example and a brain teaser for everyone:
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Imagine the above diagram is a block sitting on a flat surface, the friction coefficent is 0.35. Also the block is in contact with a vertical surface on left side surface. There is a force acting on the top surface of block at 10lbf and a horizontal force acting on the right side surface of block at 2lbf. What are reaction force and friction force, respectively? :D
RE: Question about friction coefficient in SW/Simulation
When I said friction force, I meant between block and bottom flat surface.
The 2lbf force is applied on left side surface of block and pushing the block against the left side surface.
RE: Question about friction coefficient in SW/Simulation