Belt tension in modal analysis
Belt tension in modal analysis
(OP)
Is it possible to consider the force due to belt tension in modal analysis??. I am supposed to simulate for modal analysis of a bracket that supports a pulley .A belt in an inclined direction is running over a pulley with specific tension.





RE: Belt tension in modal analysis
Prestressing force will have no effect on modal analtysis.
The only thing you can do is to model the stiffness and masses of the belt with a truss element.
RE: Belt tension in modal analysis
Not true. You can pre-tension the belt with the force you require in a static analysis and then use the static analysis results (i.e. the stiffened structure) to do a pre-stressed modal analysis. The procedure is called a "pre-stressed modal analysis" - make sure pstress is activated, and this will take account of the stiffened structure. Google "ansys prestressed modal analysis" for more info.
------------
See FAQ569-1083: Asking questions the smart way on Eng-Tips fora for details on how to make best use of Eng-Tips.com
RE: Belt tension in modal analysis
But he is correct in less strange cases, bolt prestress, for example, has no particular effect on a linear analysis.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: Belt tension in modal analysis
You can refer to 3.11. Prestressed Modal Analysis in www1.ansys.com/customer/content/documentation/120/ans_str.pdf