How to reduce solver time in ansys explicit dynamics problem?

Gourabc · June 26, 2017, 12:27

Hi,
I am trying to simulate a face milling operation in ansys, comprising of a 1000 mm job and a 125 mm diameter cutter. I have defined a displacement path for the job under analysis settings but when I start solving, the application stops responding or takes a very long time to solve. Can anyone check what might be the problem? PLEASE HELP.

I wanted to enclose the geometry and mesh files in .zip format but they are too large. If anyone is interested, please provide an email id. However I am attaching some images, but still can't attach more than five of them.

Capture1.jpg

Capture7.jpg

Capture8.jpg

Capture9.jpg

Capture2.jpg

LK_1000 · October 28, 2017, 04:41

In the contact tree you have both frictional contact and body interaction defined. I think body interaction is enough (it detects touching surfaces automatically between all parts or the parts you have defined).

In my opinion you have way too much elements in the model. Also you can reduce nodes/degrees of freedoms by using hexahedral meshing.

June 26, 2017, 12:27	How to reduce solver time in ansys explicit dynamics problem?	#1
Gourabc New Member Gary Join Date: Jan 2017 Posts: 6 Rep Power: 9	Hi, I am trying to simulate a face milling operation in ansys, comprising of a 1000 mm job and a 125 mm diameter cutter. I have defined a displacement path for the job under analysis settings but when I start solving, the application stops responding or takes a very long time to solve. Can anyone check what might be the problem? PLEASE HELP. I wanted to enclose the geometry and mesh files in .zip format but they are too large. If anyone is interested, please provide an email id. However I am attaching some images, but still can't attach more than five of them. Capture1.jpg Capture7.jpg Capture8.jpg Capture9.jpg Capture2.jpg

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October 28, 2017, 04:41		#2
LK_1000 New Member LK_ Join Date: Oct 2017 Posts: 16 Rep Power: 8	In the contact tree you have both frictional contact and body interaction defined. I think body interaction is enough (it detects touching surfaces automatically between all parts or the parts you have defined). In my opinion you have way too much elements in the model. Also you can reduce nodes/degrees of freedoms by using hexahedral meshing.