topic Re: roller suport in one direction in Robot Structural Analysis Forum

roller suport in one direction

me1205377 — Sun, 31 Dec 2017 16:53:17 GMT

Greetings all and happy new year

is there a way to define a roller support that for example only resist translation in -ve Z but not in +ve Z

without getting in nonlinear analysis

Re: roller suport in one direction

Rafacascudo — Sun, 31 Dec 2017 17:43:35 GMT

No way but this analysis will not include the pdelta effect (unless you mark it) , only the fact that with unidirectional supports the structure behaviour is not ... linear.
For example a load case like wind that causes this unidirectional support to function. For the wind on the opposite direction , this same suuport will not work and acting forces will have to be resisted by other available supports

Re: roller suport in one direction

mustafahesenow — Mon, 01 Jan 2018 14:03:49 GMT

Hi @me1205377

What you have mentioned above is Geometrical none linearity . So For sure there will be nonlinear analysis and iterations .