Comments for Ray Kurland's Blog

Comment on Siemens PLM Software’s Active Workspace mines product data by PLM Visual Capabilities : Beyond Search

PLM Visual Capabilities : Beyond Search — Wed, 25 Apr 2012 04:09:56 +0000

[...] his blog entry entitled “Siemens PLM Software’s Active Workspace Mines Product Data” that recently appeared in Ray Kurland’s Blog, Ray Kurland writes that he is encouraged by the [...]

Comment on About by raykurland

raykurland — Thu, 19 Apr 2012 12:16:04 +0000

A good way to start would be to go to my website at http://www.cad-portal.com and download the paper on how to select an MCAD system.

Contact me at rayk at Technicom.com if any questions?

Comment on About by Robert Barrett

Robert Barrett — Thu, 19 Apr 2012 10:32:48 +0000

Hi Ray,

My name is Rob and I am an Engineer with InstantUpright – See website below.

In short we are a Aluminium scaffold company looking at moving to a 3D package. We currently use 2D autocad for all of our designs, and have a database containing over 20 years worth of Autocad drawings.

The main software contenders are between Solidworks & Inventor. I am wondering would you be able to give me an unbiased opinion.

You understand what it is like talking to each of the vendors whom obviously push their own product.

Looking forward to hearing any advice that you may have.
Kind regards
Rob

P.S. I am now following you on Twitter! You can follow me back on Twitter @Barrer1

Comment on Direct Metal Laser Sintering (DMLS) produces high strength and finished metal parts by Michigan Orthopedic Surgery

Michigan Orthopedic Surgery — Tue, 10 Apr 2012 11:18:41 +0000

Advances in medical technology are continually throwing up better and newer forms of joints, implants et al. I think these will lead to many breakthroughs in the future!

Comment on Scan and Solve offers meshing-less FEA by Vadim Shapiro

Vadim Shapiro — Sat, 24 Mar 2012 23:39:51 +0000

I like surfaces, flat or curvy — they are good for lots of things. We do not want to give them up. … we just do not want to be restricted by them …

Comment on Scan and Solve offers meshing-less FEA by Oleg Shilovitsky

Oleg Shilovitsky — Sat, 24 Mar 2012 19:29:21 +0000

To base your work on 3D completely. Today still a lot of works are still 2D…

Comment on Scan and Solve offers meshing-less FEA by Vadim Shapiro

Vadim Shapiro — Sat, 24 Mar 2012 09:52:14 +0000

Oleg, If this is the case, then what does it mean to be “3d Based”? What is missing in your opinion?

-Vadim

Comment on Scan and Solve offers meshing-less FEA by Vadim Shapiro

Vadim Shapiro — Sat, 24 Mar 2012 09:49:18 +0000

Dennis, Scan&Solve for Rhino uses its own solver that uses
uniform grid of B-splines as “finite elements”. To combine Scan&Solve with other types of elements/analysis, we need to modify solver’s integration and post-processing routines. We would need to change how numerical integration is performed over individual elements in the code,and modify the way the results are post-processed. A typical FEA assumes that geometry is represented by a conforming mesh, and all their computations (integration and visualization in particular) use mesh as geometry. We would modify these routine to refer to the native geometric model instead and adapt their integration and visualization routines to work on the original geometry.

There is nothing special about iso-geometric analysis — just a different set of basis functions, and it can also be used with Scan&Solve. In fact, it would help quite a bit with imposing boundary conditions (restraints). But the main claim of iso-geometric analysis is it ability to conform to the original geometry — which Scan&Solve does not really require.

Hope this answers your questions.
-Vadim

Comment on Scan and Solve offers meshing-less FEA by Oleg Shilovitsky

Oleg Shilovitsky — Fri, 23 Mar 2012 00:10:03 +0000

Ray, intro new technologies like 3D scan can be an interesting opportunity for 3D. After almost 20 years of 3D revolution we are still very 2D based . Oleg

Comment on Scan and Solve offers meshing-less FEA by dennisnagy

dennisnagy — Thu, 22 Mar 2012 13:42:56 +0000

Hi ray,
Very interesting. Do you know what the actual solver is doing/using? i.e., can it use an existing “off the shelf” solver like Nastran, Ansys, Abaqus? Or does it do it’s own solving of the elasticity equations using an implementation of “Isogeometric Analysis”?