Having an assembly, modeled in the frame generator, then with some additional parts (ribs, plates, etc) added to the assembly as parts and constrained with assembly constraints.. which is the best way to do a frame analysis with the frame analysis enviroment for considering the all structure (frame generators parts + the additional enforcing parts) ?
The assembly look like for example, to this (modeled in autocad).
I have created a report from a frame analysis of an arrangement of I-Beam steelwork. I need to check that I have placed the nodes in the right order and this is reflected in the results of the report. I have the parent and child nodes connected at the ends of the beams as shown on the attached screen shot. I'm interested to know if the order in which I have selected the nods makes any difference to the results. There a 3 node connection points at each corner section.
View 3 Replies View RelatedI am trying to run a simulation on a 4 layer part that has two base layers of I-beams, a frame I made in the frame generator (below) and a solid sheet on top. I am having some issues with the FEA side and was curios to see if the frame analysis tool would yield the same results as the stress analysis simulation. For the frame generator I saw 4 times the amount of deflection despite using (what I believe) are similar loading and constraints, however now I am unsure if I can trust to run an FEA simulation with a frame generated component. The frame is made up of 2 inch steel box beam with a 0.25 inch wall thickness. For the frame analysis package, I have applied a pressure that equates to a 70 kN load across four different sections of the frame. Supports have been placed under all four corners, with 1 being fixed and the other 3 free to move. For the FEA simulation, I applied a similar pressure by creating 2 inch wide plates and applying the same pressure at the same four points. There are also 2 inch square pads under the four corners of the frame with one edge of one pad being fixed and the bottom of the pads having a frictionless constraint. There are separation contacts between both the pressure plates on top of the frame and the frame as well as between the pads and the frame.
with the frame generator is that all the segments of the frame are bonded together (under contacts) which makes sense since they are welded together. However when I put a sheet on top of the frame, there are 3 contact points created between each beam on the frame and the sheet (one on the face of the frame that is in contact with the sheet and the other two on the rounds of the frame and the sheet, even though the rounds are not actually in contact with the sheet). Either way, I am seeing deflections of less than 0.1 mm when a 70 kN load is applied which I know is not right and just want to know if using a frame generated component is not possible with an FEA simulation.
I've attached file. This is trestle and SWL(safety work load) is 2T. How can understandable that this load is going to be withstand by trestle.
View 6 Replies View Relatedexplain the circumstances where 'Release' is applied to a beam (node?) when using the Frame Analysis tool.
View 1 Replies View RelatedWhen I go to Environments>Frame Analysis, I used to get a menu for Constraints, Loads and other settings (similar to the Stress Analyisis menu). I don't get that now. I can right-click on an existing simulation and add constraints and loads, but I would really like to get the menu back.
I can go to tools>Customize, Toolbars tab and Frame Analysis Panel is there. I can click Show and it will show the panel but it stays up all the time. Not what I want.
I have tried resetting the menu, repair installing Inventor and Reinstalling Inventor, but still not joy. How do I get this back to the original setting so that it comes up when I select Frame Analysis?
This is in 2011.
I understand that in a normal part to apply a load to a face is to make it a UDL (uniformly distributed load) by default. To apply a point load, I was told to create a small sketch and use it to split a face to create, in effect, a small face on which to apply a load, effectively making it a point load.
Now in the frame analysis environment, there is clearly an option for 'force' and one for 'continuous force' which the description clearly describes as a uniformly distributed load. However, when I run the simulation (on a 2m long 100mm x 50mm x 4mm Rectangular hollow beam) with a normal load in the middle of the beam (1m offset); the maximum moment comes out at 500000 Nmm or 500 Nm. By my reckoning the moment should be 1000 Nm as the basic formula for a moment from a point load is M = F*D (Moment = Force * Distance). However, to get 500 Nm, it looks like Inventor is using M = (F*x^2)/2 where x is the midspan of the beam (in this case 1m). .is a normal load in frame analysis the same as a UDL? If so..how to I make it a point load?
There are also some errors stating instability of type 2 at various nodes, I've used both Pinned and Floating constraints at either end of the beam.
I have a question regarding adding a force constraint in the Inventor frame analysis environment. When I add the fixed constraint to the beam the orientation indicator is incorrect - the square indicator being not parallel to the base of the beam. I would like to know why this is and as I am relatively new to frame analysis if I am doing something wrong. I have attached a screen shot of the placement of the constraint on the beam.
Autodesk Inventor Professional 2013 SP2 64-Bit Edition
Windows 7 HP Z400, Intel Xeon W3550 3.07GHz
12.0GB RAM, ATI FirePro V4800 (FireGL)
How can do the thickness analysis in autodesk inventor like solidwiorks thickness analysis, it show the thickness of the part in point to point
View 1 Replies View RelatedDoes Frame Analysis uses the finite element method?
If it does, how to view/edit the mesh?
I am trying to run a Frame analysis on a beam structure. I wanted a specific yield stress for the components that make up the beam. So I created a new material and changed the yield stress and change my beam components to that new material. However when I run the simulation the yield stress is not what I made it. Is this allowed?
View 6 Replies View RelatedI am busy constructing my own Structural Shapes Library in Inventor 1012.During the Authoring and Publishing step I mapped Cross Section Properties (Ixx, Iyy, Torsional Section Modulus, Torsional Rigidity Modulus etc) to set parameters in my iPart table.
I have noticed that once this part is then used in Frame Generator to create a simple beam and then analyzed with the Frame Analysis tool, the analysis tool uses the geometry of the part to calculate these properties.
Is there a way that I can force Inventor to use the properties in the iPart Tables? I am worried that any errors in creating the cross section geometry will be carried into the Cross Section Properties calculated by Inventor.
I created a structural shape profile for use in a project. It is square tube with radiused corners, very similar to "ANSI/AISC (Rolled Steel) Structural Tubing Square" in the content center, but mine is 1 inch square with 0.065 inch walls.
I've made a chassis out of my custom tubing. When I run a frame analysis on it, I get an error/warning stating that the torsional section modulus is zero, because I didn't fill in the value when I generated the frame. How do I calculate that value?
I've attached the tube that I used to make the structural shape.
Simulation Frame analysis crashed when choose button Simulate. Write failed to connect solver.
View 9 Replies View RelatedI have tried the Frame Analysis for the first time and quit from this option as requested.
BUT now the subassemly consisting frame and all its parts are grey even after restarting Inventor.
Here is some bug. [URL] ....
I am new to Inventor and am trying to model a hopped safety ladder in Inventor. I have gone through the stages of creating the 2D sketch then adding to assembly and creating the frame which had worked ok for the standard straight run. I am having problems however with the hopped safety cage section which is slightly more complex. I have created a basic circle in sketch part and managed to add a frame to this but I can't copy the component or modify it to create the hopped cage or add it to the main frame.
View 9 Replies View RelatedWhat would cause my frame generator parts to rotate when I change a completely different part on my frame. they seem to be off by a very small amount. they seem to rotate everytime a change something else in the frame and can change them to be correct.. I believe my main sketch is constrained.
inventor pro 2012
windows 7 64 bit.
Dell t1500 i7 8 gb ram
ati firepro v4800
I am on inventor 2010. never really used the frame generator much before. so I may be doing soemthing wrong.
But I just make #d sketches, and add members as i need them.
But I have this assembly, made of I-beams and HSS. I noticed eventually some parts will get twisted.
(Not really sure when and why it happens. I Usually notice just by chance.)
The only way I found to correct the problem is to delete the member and re-add it.
I have resorted to partially recreating frames.
I am working on one frame where I have rebuilt two parts multiple times and they still revert to being rotated slightly after performing a rebuild. I can continually hit the rebuild button and watch them rotate back and forth. Is there a known fix for some of these oddities with FG?
Notice the two tubes in the attached pic. I do not understand why they continue to rotate out of alignment after they are placed correctly. (They even look fine when placed.)
Inventor Pro 2011
I dont know if this is possible or not. What it is, is that we use skeletal modelling, so we use intelligent "master sketches". Now we are just starting to use frame generator also and we want to combine the 2 methods.
An example of how we work is this.......
Lets say, we are designing the base of a basic frame. Now, we sketch in the profile of the RHS that will run along the front of the base and we also sketch in the elevation view of this RHS (see snip 1). This gives us 2 sketches to derive in to create a new part of RHS.
If I change the size of the profile of the RHS within the "master sketch" the newly created RHS part will update to suit. This also applies if I change the length of the RHS within the elevation view within the "master sketch".
So, now we want to add in a 5mm thick plate that sits flush with the top of the RHS, we sketch in a 3mm thick rectangle and make the top line colinear with the top line of the RHS profile sketch (see snip 2). We would then derive through these sketches and use them to create this plate as an ipt.
So now we have 2 parts, 1 length of RHS and 1 piece of plate. If we place these to parts into an assembly and ground them to their "root" then the plate will be sitting flush with the top of the RHS.
If I change the profile of the RHS to 50mm taller in the sketch, then the plate will move up to suit and stay flush with the RHS in the assembly.
NOW, what we want is to use frame generaotor along side this method. Instead of deriving through the first 2 sketches to create the the RHS, we want to create the RHS using frame generator and the elevation sketch BUT what we also want is when we change the profile sketch of the RHS, the Frame generator generated part updates to suit the altered sketch. The reason we want this is because we control all our full assemblies using sketches.
Lets take the same bunch of aforementioned sketches and create the parts using FG.
So I have the RHS profile sketched out at 100x50 and the plate sketch sits colinear with the top of this.
I then go through the motions to create the RHS within FG.
I choose RHS from the drop down menu, then choose 100x50 from the "size" drop down menu. I then use the elevation sketch to specify the length.
Now if I increase the size of the RHS (to 150x50) within the sketch, the plate will move up to suit BUT the actual part of the RHS which was created using FG will still stay the same size (100x50), and the plate will be shown as floating within the assembly!!!
If I do it the other way, i.e. change the size fo the RHS within FG, then the sketch will still show the original size and the plate will still sit flush with this original size. This will show the plate as sitting too low in the assembly!!!
Is there anyway at all, that we can link the profile sketch dimensions to the FG generated parts, so that if we edit the profile size of the RHS to a larger or smaller size then FG will automatically alter the generated part to suit the profile sketch???
Is this at all possible???? Or will we just have to alter both the sketch AND the FG part? We really don't want to use adaptive parts within our assembly, we always just control our assemblies with our "master sketches".
The following is the problem: I have an assy with multiple different frames. If I make a parst list in the IDW all the frame members are shown seperatey, I just want to show only the frames in de parts list. I tried grouping, but when two assy's are the same that doesn't work any more.
View 3 Replies View RelatedIn previous versions, as clunky as it was, I used to put a work plane in the centre of a frame generator part using "G_L/2"
This does not seem to work anymore in 2013.
Inventor Professional 2014.
Windows 7 64 bit.
Up until now, for FG I've always created a part with just a sketch in it. I insert that in an assembly and use it as my frame generator driving part. Now, I've started creating a solid instead of just a sketch in the part and using its edges to attach frame members. Picture a cube. I really need to put sheet metal on the cube and have my frame on the outside of the sheet metal. I was setting up a parameter for the sheet metal thickness and offsetting the members in Frame Generator that parameter. Now, I've accidentally discovered that I can select the outside edge of the sheet metal part to attach my frame members to. Is that a valid workflow? If it is, its a bit of an epiphamy for me. Using a parameter in FG as an offset required me to edit each member with FG and update it to get the offset to use the current parameter value.
View 2 Replies View Relatedredirecting T&P and Frame Gen parts and assemblies to custom folders, changing folder structure from default to custom.I find default folder structure too complicated and want to simplify it.Also, when copying design, I get a message about folder paths being to long and I am unable to execute Copy Design.
View 5 Replies View RelatedI'm trying to make a drawing of a assembly, and some of the parts were made in frame generator. When I try to make a section view the parts made in frame generator still show as whole instead of halved. Is there something that I need to toggle or vice versa so that this will not happen anymore?
View 4 Replies View RelatedI can publish a part containing a user text parameter to the content centre for use in frame generator however when I go to insert that part an error as per the attached screen shot.
To re-create the error you have to follow the below steps.
Create a part with a text user parameterPublish for use in frame generator.Create frame with the part and an error will be created as per the attached screenshot.
Is there a way to work around this error being created and use parts with text user parameters in Frame Generator?
I am trying to create/publish custom shapes into Content Centre and for use in Frame Generator. I can create the i-Part and configure the parameters I want to enable different sizes - no problem. However when I go to "Publish Part" ()
I get the following error.......
do I need to save the ipt file in a different location? What dependencies are there? I get the same result if I follow the Inventor tutorial using the brace.ipt part....
After using Custom Profile for Frame Generator, the Part List will show total length, not individually. How to split these frame members?
View 2 Replies View RelatedI created an extruded aluminium profile (attached file: Item Profile 8 80x80) which I published into the Content Center. When using this profile in a frame design, and using the Trim To Frame command, the profiles are trimmed at a weird angle (attached pdf file).
View 2 Replies View RelatedAfter using Custom Profile for Frame Generator, the Part List will show total length, not individually. how to split these frame members?
Inventor Professional 2013 SP1.1
Windows 7 Pro 64-bit, SP1
HP EliteBook 8460w; 8 GB RAM; i7 - 2.0 GHz; AMD Firepro M3900 -1 GB
There should be a way to Notch a straight frame to a curved frame! I want to laser cut the tube, so I really need to trim one tube to a curve tube.
View 8 Replies View Related
