structural problems

[giupen96]

Hi.
I am doing structural analysis on a step file imported from creo with ansys 2021 r1, I am having problems with the application of the load, because it does not allow me to apply the load on a 2d surface created in spaceclaim environment to which I give the building surface property.
Does anyone know how I can do that?

 

[giupen96]

help

 

[MassiVonWeizen]

point #8 Regulation
8) up - the practice of responding to messages to get them back to the top of the list (cf. up!) is to be considered place. a forum is not a chat, you need patience to get answers.

 

[Stan9411]

could be useful to see an image. Then you don't understand why you have to apply the load on a tile surface... if you have the solid component model, surely in reality the forces wander on some of the surfaces of that solid.. Why add more?

 

[Stan9411]

I do not know at the bottom of spaceclaim ... but in the cads usually the primitive (plans, points, lines) so-called “building” are not really present in the model, do not make volume, do not come meshate... I do not know if this appellation you have given it improperly or are actually talking about the same thing.

 

[giupen96]

could be useful to see an image. Then you don't understand why you have to apply the load on a tile surface... if you have the solid component model, surely in reality the forces wander on some of the surfaces of that solid.. Why add more?

I have to apply a force on the floor of the kickscooter as standard, and the legislation wants it to be applied on a square surface on the assigned side.

 

[giupen96]

I do not know at the bottom of spaceclaim ... but in the cads usually the primitive (plans, points, lines) so-called “building” are not really present in the model, do not make volume, do not come meshate... I do not know if this appellation you have given it improperly or are actually talking about the same thing.

Yes, but at the time when I step into a mechanical environment tells me to specify whether the surface is 2d or becomes 3d specifying a thickness of extrusion; leaving 2d I go to select construction surface and at the time when I apply the force on that surface it does not apply

 

[Stan9411]

ah you are the same guy from the other post on the fem of a scooter. .

Sorry, I worked for a few months with ansys workbench but I never added feature to a step with the built-in cad in the suite.

is history of the load applied on a square is strange anyway. . proposed by ignorant: but can't you model it in creo I'm blessed square, import it as part of the step file and apply it over the load?

in any case without images it is impossible to help you ... and it is not engineering ..

 

[giupen96]

ah you are the same guy from the other post on the fem of a scooter. .

Sorry, I worked for a few months with ansys workbench but I never added feature to a step with the built-in cad in the suite.

is history of the load applied on a square is strange anyway. . proposed by ignorant: but can't you model it in creo I'm blessed square, import it as part of the step file and apply it over the load?

in any case without images it is impossible to help you ... and it is not engineering ..

the images are attached, I modeled it both in creo and in space claim but it gives me problems when I apply force to a surface 2d

 

[Stan9411]

I'm sorry. the famous square 2d to which you refer, on which you have to apply your load, is that rectangle that in the image we see in “green” at the center of the gray plain.. ?

if so, basically your problem is only to delimite the area on which the load acts:
- pro solution: in the modeller of ansys performs a partition of the original plane, so that the software recognizes the central rectangle as a bounded surface to which you can apply a load;
- quick solution: take your model in clay, and extrude on your floor a rectangle of the size you want and the thickness of a tenth millimeter. when saved in step and amounts in ansys, the fem will recognize that that that is a bounded surface and that the load goes only there.

If you add more “objects” put us to your model, for a problem like this, you just go to mess up ... as it is happening.

 

[giupen96]

I'm sorry. the famous square 2d to which you refer, on which you have to apply your load, is that rectangle that in the image we see in “green” at the center of the gray plain.. ?

if so, basically your problem is only to delimite the area on which the load acts:
- pro solution: in the modeller of ansys performs a partition of the original plane, so that the software recognizes the central rectangle as a bounded surface to which you can apply a load;
- quick solution: take your model in clay, and extrude on your floor a rectangle of the size you want and the thickness of a tenth millimeter. when saved in step and amounts in ansys, the fem will recognize that that that is a bounded surface and that the load goes only there.

If you add more “objects” put us to your model, for a problem like this, you just go to mess up ... as it is happening.

Yes, it is the gray square; I built the sketch in space claim.
cmq since I have had this problem for a long time I have done all the simulations with the quick solution, now I try with the pro solution.
I thank you for your patience and your answers; I'm going to work!