AutoCAD Inventor :: Automatic Contacts Not Working In FEA?
Aug 20, 2012
When I setup my model for the FEA and hit Automatic Contacts, no contacts are detected .... You can see in the image I posted that Automatic Contacts is greyed out (once applied) and no Contacts are in the the Folder. I have ensured that my assembly contraints are valid and that they are indeed mated (face to face) - see image below. The Manual Contacts will work, but that kind of defeats the purpose of having the Automatic one. I have never altered any options or settings within the Simulation. I am using INV 2013 Pro. Most of the pieces in my assembly are 2x2x0.125 HSS (right out of CC).
I understand the process of splitting faces and applying a Bonded Contact between the split faces when you have a bolted connection with a nut, but what kind of contacts would you use for say a threaded connection?For example, suppose you have a plate that will be bolted to a mold. The plate has clearnace holes for said bolts and so that the bolts are threaded into the mold to be lifted. The plate has a threaded hole for the lifting mechanism (Swivel Hoist Ring). Finally, the desired load is applied to the Swivel Hoist Ring and the bolts are placed in pre-tension. I would like to simulate this via FEA but am getting tripped up in the contacts. Also I am trying to make it as simple and efficient as possible (by eliminating any bolts or other parts that are not needed). I use INV Pro 2014.
I have an 8" OD/5.523" ID steel tube. A 5.5" OD/4.957"ID tube is placed inside. The 8" and 5.5" tubes are placed over a 4.9375"OD shaft. So basically you have a hollow shaft attached to a drive shaft, with a filler tube placed between them to fill the gap. Two 1-1/2" UNC bolts are placed in matching1.531" diameter holes in every component (thru bolted) with a nut. Tightening the nut will tend to flatten the pipes, taking up the clearance between then and creating a contact pressure on the drive shaft. I have having trouble getting all of the contacts correct since the components are not in contact at the beginning of the simulation due to the radial clearances.
Two axial bolt loads of 129,000 lbs will be placed on the tubes. I have used a sliding/no separation contact between the bolt and nut. Then I put a fixed constraint on the bottom face of the nut (not in contact with the tube) and put a 129,000 force on the top of each bolt head to simulate the axial load created by the bolt preload. What type of contact should I use between the tubes that have radial clearance?
I have attached the tubes and drive shaft. The 1-1/2" bolts and nuts (both heavy hex) were found in the library.
I just got back from maternity leave and I left work at Autocad 2011 and came back on Autocad 2013. I work thru my viewports in my model space, and I've noticed that when I pan and zoom in or out or move to quickly from one point to another (didn't notice which) my model space swaps to paper even if I'm in a command. Is this something I can deactivate?
We are looking for a way to export BOM's without having to open individual IDW's.
We were unable to find such a function in either Inventor or Vault Workgroup. We have found customized function for export but each file has to be opened. Is there such a function available that we might have missed or third party?
We are currently working with 2011 versions of Inventor and Vault Workgroup, soon to be migrated to 2013.
I've recently changed idw template and since then when I put part view into new draft the file name don't change into source file name.
In standard template, when I save the .idw file it automatically propose name that is equal to source .ipt and .iam. Why when I'm saving files it won't propose file name the same as the source ipt file name?
I am trying to have Inventor to automatically export a SAT file when I close the program, I have searched the discussion boards and have not been able to find any post about automatic export in Inventor or Revit.
Goal:
My goal is to have Inventor to automatically export a SAT file in order to have those who are using Revit MEP to always have a updated version of the Inventor Model in their model drawing and vise versa.. This I think would take the human factor out of the equation, WHY?.. well we humans tend to forget about those working around us and are not that good in exporting a updated file every day!
I have included some surfaces as run off's but when automatic is select - my chosen surfaces are ignored & a mishmash of surfaces result - can the auto run off feature be edited?
I've been making iLogic assemblies with hints of VB for about 6 months now. My Boss has asked me if I can write code that will effectively create drawings automatically.
What we would like to create is a rule, which when run, creates a new drawing file, places the active assembly in a base view, then place a Left, Right and Top view of the assembly and place a parts list in the top corner. Dimensions are not really important at the moment, as the sizes of the parts are in the description field and the drawings are used for assembling the product only.
I want to create some universal bricks creations. These bricks have studs which fit into another brick. To constraint them I need to do following actions:
- click place constraint
- Assembly >> Insert >> opposed
- Offset 0,35mm.
I would like to make above into 1 action, so just click to add this action, then select the 2 faces to constrain.
I have created master assembly that has rules to 'save as' the assembly and parts to different locations and with different names. This master assy has links to excel file to get different names
In the same way I am looking the drawings (for both assy and parts) needs to be created and 'save as' to different locations. These newly generated drawings should have links to newly created parts/assembly.
I am able to 'save as' the master drawings to different locations but these newly created drawings still has links to master assembly/parts.
I have my autocad drawings setup that in the corner of all autocad drawings the time and date changes everytime you open drawings in autocad. i want to do the samething for my inventor drawings.
When we insert a Revision Table to a drawing we have the option to update Revision Number property in the drawing. This property is updated whenever we add a Revision Row.
I want Inventor to update the Revision Number property in the model the same way.
If this is not possible, is there a way to automatically map the Revision Number property in the drawing to the Revision Number property in the model?
About Substitute Shrink wrap parts, it doesn't automatic update when I use UPDATE or even REBUILD ALL inside the LOD with it, even if I don't break the link with the assembly it doesn't update, so I have to go in each assembly with Substitute parts ( with are many in huge projects) and then verify with "Check for updates" in the correct LOD (which in some cases are more than one per assembly). Is there a way to update them direct from the main assembly with rebuild all or something like that ?
I'm currently working on a model and it annoys me a bit that whenever i create a new Sketch a Center Point is created automatically (okay thats quite useful for the first sketch) and when I create a sketch on a face of an extrusion, the shape of that face is automatically projected as lines in my new sketch.
Usually I don't need that "projection" - is there a way to disable this feature?
I'm using Inventor Professional 2014 Student edition.
PS: I just noticed that I can't snap to center and corner points after deleting the projected shape.
How to make Automatic Update propeties for Flat Pattern Extens. I have write code and setting rules trigerred by event (Before save, Any model Parameter Change) but if some parameter change properties isn't automatic update. So could some one tell me how to solve this problem.
I have one problem in ilogic i developed the model using ilogic rules and dimension values updated through the User interface form.
problem is while entering the values in UI, model updates automatically, but I want to stop automatic update and after entering the all the parameters in the UI then click the done button only update the model.
I am looking for solution for my problem which concerned placing a lot of standard elements in assembly. The assembly is a frame which consists of standard profiles and those elements are standard fasteners. All from item24. I have 3-5 fasteners in library (about 200 of every kind in assembly) which are placed in standard way (three constraints). The frame is a normal assembly, not a frame generator, unfortunately. What I want is a way or functionality for placing those fasteners in fast way with ability to choose proper geometry of profiles and other parts (holes).
The best way would be to use it like bolts and washers from content center with idrop/i-drop functionality. I have never published my own library to Content Center, but yesterday I spent a lot of time reading that its hardly possible to use this i-drop for personal purpose. I found only opinions, but no examples.
Another nice thing would be the ability to have constraints preloaded at the moment of placing element in assembly and select only proper geometry of profiles and parts in proper order. I'm thinking of i-mate with only one half (I haven't use them much). Unfortunately I haven't managed to do that using i-mates - they start working only when there is another part with i-mate in assembly and pair with them. I couldn't find any materials about how to use i-mates in a way I have described. I don't want to use alt+drag.
Is there a way to speed up placing 3000 constraints in several projects?
I am currently working with fx parameters and iLogic to drive a model and it's corresponding drawing to change based on a single user parameter.
I have managed to get the drawing to update both the scale of the views I need and the size of the sheet with the change in parameter using the following rule:
However when i attempt to use this with the title block using the function:
ActiveSheet.TitleBlock="My Title Block" in place of the sheet change size it brings up the error message:
Error in rule: Drawing Title Block, in document: Drawing
The parameter is incorrect. (Exception from HRESULT: 0x80070057 (E_INVALIDARG))
I have read elsewhere that this is due to me having prompted entries for the scale and drawn by fields, however when i use the function designed for prompted entries: ActiveSheet.SetTitleBlock("Other Title Block", "promptedEntry1", "promptedEntry2") It fills in the prompted entry fields from the code and if i change these entries in the "edit field" option they are overwritten when it is updated.
Is there a way have the prompted entries when you open the drawing fill in the "promptedEntry1" field in the rule so that I can use the rule? Or am I going about it the wrong way?
I should point out i'm new to iLogic and no-one in my workplace can use it so each person changing the "promptedEntry1" field to the scale they wish isn't a wise move.
User guide states: "Customize Brush Tip Shape options like Granularity, Spatter, Hardness, and Distortion controls. With a stylus, alter the spread of sprayed strokes by changing pen pressure."
I see the settings for controlling ganularity, distortion, spatter, etc., and the stylus tilt angle seems to control "distortion".
The cursor "spray" outline seems to change shape as when the stylus hovers over the tablet. But there appears to be less control when stylus contacts tablet.
I used traditional airbrushes for years. There are some interesting emulations here, but a better description
When I use the share button and try to enter new contacts the program will not save them. So each time I go in and want to send an e-mail I have to go look up the e-mail address and re-enter each time.
