I don't know. I've only seen things like that sometimes if the part were imported. Have you tried tech support from Autodesk? If you want, if it's only a single part, send me the file and I can try to mesh it in my system to see if I can recreate the problem or if it may just be isolated to...
Is the part geometry translated or imported from some other format? Sometimes the translation is not clean and there are little anomalies that cause weird things to happen like that. If that is the case, inspect the geometry for defects and try to clean it up, or try converting/importing it...
You can do motion simulations in Inventor and get forces at any time step to feed back into FEA for the assembly. If you have many 3D contacts, it can quickly get bogged down, but other than that it works well. If your mechanisms are 2D planar, a very simple but very powerful tool I use...
I agree with the other posts, this is a perfect fit for FEA. I use it all the time for similar types of analysis.
Richard Lee, PE
Lee Engineering Inc
www.leeengineeringinc.com
MSC and Misumi are good sources I use. It's hard to beat McMaster for the range of products, convenience, and quick delivery.
Richard Lee, PE
Lee Engineering Inc
www.leeengineeringinc.com
I have used Protolabs for years with excellent results over hundreds of parts. They have a cnc service, 3d printing service, rapid injection molding and more. CNC parts can be gotten overnight for a premium. 3D printed parts usually have a few days lead time. It's a great company to work...
Thanks everyone for the suggestions regarding the question about tools. The hydraulic tensioning method looks great. I think I'll check into finding one to borrow or hire, or buy. The slugging method might also be OK if used in combination with a load indicating washer or turn of the nut...
I need to torque a 2"-4.5 pitch nut on a grade 8 threaded rod. I usually don't work with fasteners this large, so don't know what tools may be available. Advised Lubricated torque on a 2-4.5 fastener is 5,621 ft-lbs, and dry advised torque is 7,495 ft-lbs. I know the recommendations vary...
I am curious how it compares to the FEA included with Fusion 360 Ultimate (not Fusion 360 standard)
Richard Lee, PE
Lee Engineering Inc.
www.leeengineeringinc.com
I have an Inventor Ultimate perpetual license that I pay maintenance on every year. It includes many programs which includes Fusion 360 Ultimate. Fusion 360 Ultimate has some non-linear FEA and thermal FEA, etc. that is not part of the standard Fusion 360 package nor built into Inventor...
