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i have problem in writing matlab code for 3D element to find electric potential at each node

i have the tool surface and workpiece surface and i have to find electric potential in the gap b/w tool and workpiece,for that i assume it as a solid and i took the laplaces equation to find potential i.e  

(∂φ/∂x)² + (∂φ/∂y)²+ (∂φ/∂z)²=0

I want to perform a parametric study, where the geometry of

an object is varied. However, the only catch is that I need to be able to do

this by parametrizing the input file. I have given an example below to more

clearly explain, what I am trying to say. 

Let’s just say i have a cube, and i want to define the

distance between two opposite faces by a parameter called 'length', with a value

of 20mm. I know that this would be written in the input file as: 

*PARAMETER

length = 20.

Dear All,

I am working on the simulation of the metal cutting process using DEFORM 2D.I need some

guidance on the software usage.How do we vary the feed rate / cutting speed for different

operations.Can you help.I am pursuing my PhD currently.Do you have a working manual of DEFORM 2D for metal cutting.

Wishes ,

VIJAY.

Hi,

I'v been using the Abaqus command window to run my jobs without any problems.

Today, however, I suddenly got the following message:

Intel Visual Fortran Compiler 9.1 Build Environment for 32-bit applications - abaqus job=eightchain user=eightchain_Jaumann

The NTVDM CPU has encountered an illegal instruction.

CS:117a IP:0204 OP:63 65 6c 27 3a Choose 'Close' to terminate the application

The header of the message says: 16 bit MS-DOS Subsystem

 Has anyone had a similar problem before???

 Thanks,

Hello everyone.

I need to apply a torsional load to the top face of a cylinder. I try doing this but my analysis doesnt run. I am using Abaqus 6.7 EF-1.

Can anyone help?

Hello,

I am doing a literature search on this topic. Particularly, I am interested in existing devices and techniques that are used in academia and industry to 1) avoid shaft whirl in rotating machinery under perturbed loads (e.g. rotor systems), 2) to come out of whirling mode if shaft starts whirling, 3) other techniques related to stabilizing shafts in general to reduce the resulting vibrations.

Any help would be greatly appreciated.

 Thanks.