bolt connection by importing connector file

Altair Forum User

I have more than 200 bolt connections in my model with bolt dia of 18mm. How do I connect them all.

Is there any tutorial available by importing connector file?

If yes than pls share

Altair Forum User

Hi Jigar,

 

Please refer to the tutorial: HM-3440: Model Build and Assembly

 

part of the tutorials talks about importing connectors which are in .xml format in HyperMesh.

 

You can use Import connectors/Spotwelds option in HyperMesh to assemble and realize connectors. Go to Import>> Connectors to import connectors.

Altair Forum User

Hi Prakash,

I have more than 1000 bolt connections in my model & I have used bolt connection panel to give bolted connections.

Now when I import it in Ansys, it shows orientation error-'Orientation node of element is colinear with first two node'

I am unable to resolve this.

How orientation node of bar element is set? 

Altair Forum User

Altair Forum User said:

Hi Jigar,

 

Please refer to the tutorial: HM-3440: Model Build and Assembly

 

part of the tutorials talks about importing connectors which are in .xml format in HyperMesh.

 

You can use Import connectors/Spotwelds option in HyperMesh to assemble and realize connectors. Go to Import>> Connectors to import connectors.

Hi Prakash,

I have more than 1000 bolt connections in my model & I have used bolt connection panel to give bolted connections.

Now when I import it in Ansys, it shows orientation error-'Orientation node of element is colinear with first two node'

I am unable to resolve this.

How orientation node of bar element is set? 

 

 

Altair Forum User

Hi Jigar,

 

When creating bolts you might have used dynamic vector. This creates bolts with wrong orientation.

 

Try to update the bolts by changing the vector direction

 

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Altair Forum User said:

Hi Jigar,

 

When creating bolts you might have used dynamic vector. This creates bolts with wrong orientation.

 

Try to update the bolts by changing the vector direction

 

<?xml version="1.0" encoding="UTF-8"?>

ok!

but I am not able to decide the orientation vector.My model is cylindrical about z axis, some bolts are along radius,some are along z-axis while some are in xy plane.

So how do I define the vector?

I am not able to understand its significance

Altair Forum User

Jigar,

 

Try with Z direction and check if that works.

Altair Forum User

I got same error..If you can explain something on orientation node, then I may get some direction

Beta

Hi, jiGar. As you can see in the panel, there are three methods to determine vector for your bolt connection. the last one is define a new vector, that means you have to define it by yourself. Hypermesh uses three-node method to define a vector for direction. you will have to choose three nodes and they must not be in the same line. your error 'Orientation node of element is colinear with first two node' may be caused from this reason. try define again using three nodes. the orientation is progressed as picture below:

<?xml version="1.0" encoding="UTF-8"?>

Altair Forum User

Altair Forum User said:

Hi, jiGar. As you can see in the panel, there are three methods to determine vector for your bolt connection. the last one is define a new vector, that means you have to define it by yourself. Hypermesh uses three-node method to define a vector for direction. you will have to choose three nodes and they must not be in the same line. your error 'Orientation node of element is colinear with first two node' may be caused from this reason. try define again using three nodes. the orientation is progressed as picture below:

<?xml version="1.0" encoding="UTF-8"?>

I tried giving Z direction but my errors were same. I am not getting the concept of 'colinearity errors' that comes due to orientation node.