Discussion Groups
New Idea
1 Kudo

This sugestion is to add a selction box to complete mesh statistics after mesh is complete.  With this selected the mesh would be created and upon completion the mesh statistics would be run base on the type of mesh created.  On larger models with significant hesitation on completing the mesh transfer and open the mesh staistics dialog box would be a significant time savings, as the first thing I do after creating a mesh, is run mesh staistics as an input on how to proceed with mesh improvement.

1 Kudo

Our customers hopes for the analyze 「Thermoplastics Bi-injection Molding」 by DualDomain and 3D.

 

【Reason】
・Our customer wants to confirm a three-dimensional flow and internal pressure and the temperature.
・Our customer wants to analyze it with the uneven thickness and the thickness meat product.
・The mesh model's making is easy in DualDomain and 3D.

11 Kudos
madhukeshwart

Power copy option

Status: New Idea
by *Expert Elite* on ‎05-05-2014 11:25 PM

Power copy option

 

There must be option to select some components of one study file &  copy them or paster them in another study file.

 

For example

 

If I need to add same feed system to other study file, I should be able copy the only feed system from that study file, should be directly paste in other study. file.

1 Kudo

Option to transfer or move nodes to a plane, which will be helpful

=================================

1. Moving the set of nodes to a plane is useful, when creating ribs from nodes from surface to a certain height.

If nodes are not in single, we may end up in moving each node separately.

 

2. when creating multiple drops of different heights, aliging one end of all the drop to  manifold level.

 

3. aliigning node in a plane.by transfer.

3 Kudos
mppkumar

Merging two nodes

Status: Comments Requested
by mppkumar on ‎09-03-2014 10:34 AM

Some times we may need to merge two nodes and the resultant node should form at the center of merged nodes.

 

is it possible to have a check box and if it is checked the resultant node will be at the center of merged nodes

 

Thanks

M P Pradeep Kumar

 

 

9 Kudos
aholman

Simplified Modeling for Baffle

Status: Under Review
by aholman on ‎03-13-2014 02:22 PM

Summary

 

A proposal to simplify modeling Baffle features in a cooling system.

 

Problem

 

Currently, every baffle requires two separate lines to create a baffle. Users can either make a small V configuration or the two lines can be coincident. However, if at any time the nodes get merged on the baffle line then the solver interprets the baffle as a dead-end. This issue is especially problematic if using HyperMesh to generate a Moldflow mesh file. 

 

Solution Proposed

 

Eliminate the second line needed to generate the baffle. The necessary pressure drop should be automatically calculated by the solver. The solver should also be able to tell which direction the water is moving based on the coolant inlet boundary condition. This is similar to other softwares on the market.

 

 

Status: Under Review
We had a similar discussion at the closing session of the moldflow power track at AU 2013, which got some good support. We have this under consideration. In principle you could create a simple bubbler and baffle modeling API script to simplify the modeling.
4 Kudos
renan.melhado

option to select a Feature line

Status: New Idea
by renan.melhado on ‎06-20-2014 09:18 AM

Summary

 

Feature line select, the possibility to select an edge or feature line in mesh for path plot or align nodes.

 

Problem

 

Currently, when you will make a path plot, you need select node by node to represent a edge. When you have a several study with differents meshes, this will take a long time.

 

Solution Proposed

 

A tool for select a feature line by nodes in order. Like you have in some Pre-processor tools (e.g. ANSA)

 

5 Kudos

Export the selcted components to a study file

 

There must be option to select some components of one study file &  export them to a study file.

 

For example:

 

If I need to add same feed system to other study file, I should be able to export the only feed system from that study file &  should be able to  add them directly in to other study file.

5 Kudos

 

There much be an Option to Change Occurrence number to multiple beam elements/ tri or tetra elements of different property type in one instance.

 

For example :

 

If I need to assign occurance number of one quarter of layout, which having beam lements of different size and type(i.e cold runner, hot runner, cold gate etc) & having tetra elements or tri-elements. I can't select all at a time and assign one value of occurnace number. I need to select each type & assign occurance number separately. I.e if it have 4 different type of elements. I need to repete the task 4 times.

 

Instead of this, there must be option to change occurnce number of all the selected elements( beam or tri or tetra elements)at a time. & vice versa.

 

 

 

 

12 Kudos
Jacky1187

restrict globel merge to visible entities

Status: Implemented
by Jacky1187 on ‎10-09-2013 06:56 AM

Hello all together,

 

today if you use global merge it merges over all layers, visible or not visible.

 

Global merge need also an option to work only on visible entities, and not for all layers and parts in a study.

 

 

Michael

Status: Implemented

was implemented in 2015

16 Kudos

Selecting multiple layers in Layers Pane

  • for sorting (moving up or down in list)
  • for hiding / showing multiple layers at a time
Status: Accepted
This fits in with some other ideas we have around the layers. With the current models with many different components,the number of layers can become very difficult to manage.
4 Kudos
markus.atteneder

Check whether duplicate lines are present

Status: New Idea
by markus.atteneder ‎04-22-2014 10:53 PM - edited ‎04-22-2014 10:57 PM

It would be very helpful, if there was an option to check importet lines/curves like IGES, to see if there are two ore more of them. Sometimes the interface of some CAD-systems exports more then one curves and in Moldflow you can't see this.

The Problem is, when you edit the properties to channels and meshed it, you have overlapped beams.

It spend many time, to check this and find the problematic areas.

 

 

2 Kudos

If option provided  to create a centre line for cylindrical features will be  helpful to generate cooling channels.

7 Kudos
Jacky1187

Hybrid Meshes

Status: Comments Requested
by Jacky1187 on ‎12-13-2013 01:25 AM

Hello all together,

 

to speed up the simulation, hybrid meshes would be advantageous.

 

For example Sigmasoft takes voxal meshes and this mesh is more tolerat of CAD problems. The calculation time for a compled Mould is very fast.

 

To decrease the preparation time and  computation time hybrid meshes can help.

 

It would be possible to simulat very large models in 3D.

 

Greeting Michael

Status: Comments Requested
Hi Michael and Harald, My personal goal is to remove 'meshing' as a skill we have to teach the user in order to get fast and reliable answers. And we do spend time every release to improve the meshing and the solvers, but this is certainly not a 'done' problem. I do want to provide a little context though. 1) Voxelation provides a very fast and robust mesh generation path. We actually developed what is probably one of the fastest voxel meshers available for other reasons, so we are very familiar with the technology. We did not develop it to replace our normal meshes as as there it comes with very significant sacrefices in appearance and run times (you generate very very large meshes). 2) Within Moldflow we can generate several different mesh types, and each works a bit differently, and depending on the starting geometry type, the meshing path may be different (this expalins why meshing on an STL or a Solid CAD model will give you different meshes on the same gemoetric part). Within the meshers there are typically a few steps that predeed or follow the 'mesh generation' like mesh imprinting and matching. These post meshing steps can take significant time compared to the brute mesh generation, but in the end pay back in better analysis results. For some pieces of some meshing paths we license technology (not Distine :-) ), but very significant pieces were developed internally and are continued to be developed. 3) In the last few releases (since 2013 I believe) we have improved the tolerance of the solver for dealing with meshes that are not pristine and perfect. Appart from this being a good idea, there is simply no way that we can guarantee that the initial starting geometry is good enough to create a pristine mesh. More work still needs to be done, but I have seen many customers spending too much time fixing the meshes up perfection, whereas the 'default' mesh would have given nearly the same analysis result. 4) Lastly, I agree that the meshing controls in Moldflow could use an overhaul. It's not as interactive as you would hope it would be. Thank you for your valuable input on this topic.
16 Kudos
madhukeshwart

Option to transfer inputs

Status: Accepted
by *Expert Elite* on ‎03-07-2013 03:39 AM

I may be bit lazy to ask this option, but I feel it must be.

 

1. There must be a option to transfer process parameters, including material details from one study to another study.

or else every time with new study or with new mesh needed to apply the inputs from previous iterations.

 

or else

2.There must be a option to export process parameters, including material details from one study as a file & that should imported to other new study or with new mesh, when ever needed to apply the inputs from previous iterations.

Status: Accepted
This is a fairly frequent request and completely makes sense.
6 Kudos
madhukeshwart

Simulation of air cooling

Status: Comments Requested
by *Expert Elite* on ‎09-18-2013 11:00 PM

Simulation of air cooling

 

1. Air as a coolant

2.Simulation of air sprayed cooling systems

Status: Comments Requested
I've heard the use of air as a coolant medium a few times recently. The main reason that for its use seems to be that air as a cooling medium has low pressure requirements and would allow very thin coolant cross sections. I'd be interested in hearing more on this. Could you provide more insight into 'air sprayed cooling systems'.
3 Kudos

 I want to request an implementation of the function, “Restrict to visible entities” in the “Aspect Ratio” menu of “Mesh Diagnostics”.
 When one use this function with a model mixing DD and 3D meshes, e.g. in Cool(FEM) analysis, the result shows high aspect ratio elements of both of the DD and 3D elements regardless of “Restrict to visible entities” option is checked and one of DD or 3D mesh elements are hidden.
 Because it takes long time to get highest aspect ratio of each element using “Mesh Statistics”, it is necessary to use “Aspect Ratio” with being checked “Restrict to visible entities” worked and should display high aspect ratio for either of DD or 3D elements efficiently.
 I think this idea will be useful for the other Moldflow users especially in case of Cool(FEM) analysis and coupled analysis of Moldflow and CFD, in future.

1 Kudo

Option to provide alternate trigger points for sequential valve gates
=========================================================

 

For example : If we have provided 4 cold gates for single hot drop, then flow front can reach early to any one of the cold gates.

 

Such case, we have run the one iteration to find out, which gate receives the flow @ first. Then in next iteration, we need to select the earlier flow reaching gate node as a trigger node.

 

Solution : Instead of that, if given an option like Node no1, node no 2, Node no 3( i.e 1,2,3). It should trigger valve open, which ever comes first.

1 Kudo
emka70

Combining 3D Part elements with Midplane Part Surface elements

Status: Future Consideration
by emka70 ‎06-30-2014 04:24 AM - edited ‎06-30-2014 04:25 AM

I would like to be able to combine 3D part elements with Midplane Part Surface elements.

(Think of film gates or living hinges, where the midplane elements are handy when you want to change the wall thickness quickly AND where you do not want to end up with very flat 3D tetras.)

 

(Note that combination of Dual Domain and Midplane is already possible!)

 

BRM

 

Status: Future Consideration

I udnerstand the idea, and Moldflow development went in this direction about 10 years ago. It became apparent that this would not provide results reliably and we abandoned the idea. Instead we focussed our efforts on speeding up the 3D analysis and the calculation time penalty is currently much lower.

 

At a high level this sounds like a good idea, but this very unlikely something we would embark on in the near future.

7 Kudos

It's been well documented that 3d gates are much more accurate than beam element gates for 3d models.  So I'd like the ability to create a dual-domain mesh from beam elements for gates.  I would use this to easily create 3d gates.  The technology to do this already exists when you create tool files for Cool(FEM).  But it's a real pain to do that to a whole tool just to get a gate. 

 

I am ok with having to stich the new gate in myself.

Status: Accepted
Good request
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