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Looking for a Postdoctoral/Research Associate Position in PDE/ODE

Submitted by Pavel Aleshin on

 

I have recently (spring–08) completed my Ph.D in PDE with the specialisation in fractional differential equations. If any Professor or research organisation has an opening for a postdoc position in the areas related to my fields of interest, please contact me alyoshinpavel [at] gmail.com

 

thanks for your attention

Pavel Aleshin 

Simulation of a freely-vibrating cantilever beam connected to a box with granular solid particles inside using Ansys- Ls-dyna

Submitted by abeed on

A cantilver beam is connected to a closed box. 3 balls of different sizes and materials are inside the box. the beam was draged litle downward from the middle and then left to vibrate freely. of course, during the vibration, the balls will colide with the box walls and with each others. The question: is it possible to simulate this system with ansys? if yes, How?

Does anyone can help me on spooles package's iterative method ?

Submitted by bobljp on

Does anyone can help me on spooles package's iterative method ?
Dear everyone :
I need your help !
I am using spooles , and I have successfully
use it in direct methods which is in directory
/misc/drivers , and I have run into problems when
I use the code in /Iter/drivers , for the demos in it
, I have run successfully , but I want to use the same
matrix of A and b as in direct method when I do in direct,
in fact , I am use a fortran code for main program , I
only to take use of spooles as a subroutine , to solve Ax=b for
me, the code iter.c in Iter/drivers , is a main c program , and I want to
change it as a subroutine for my fortran main program .
and I don't know how to change it to a suitable code . because in the

Mechanism To Increase Energy Efficiency.

Submitted by Jigar Y. Patel on

View the figure attached. It is about using Cam for increase
energy efficiency. Cam are generally used to open and close valve of IC
Engine. I am going to show you another use. Left side initial position.
Right side final position. Redius of cam continuously decrease.Sliding
weight (MG) applied on Cam. With the help of rope weight(MG*Cos(b)) is
fixed with cam. We consider b as 45. So cos 45=.70. This fixed weight
should be 0.70 MG. Which balance the sliding weight applied on cam in
tengential direction. As sliding weight come down the fixed weight go
up. But the twist is the redius of cam decrease nominal continuously.
So sliding weight come down little bit and fixed weight go up much
more. We consider sliding weight come dowm H2 height and fixed weight

Cyclic Plastic Dissipation Calcualtion in UMAT

Submitted by Mehdi Naderi on

During Fatigue temperaure of materials increases due to plastic deformation.  I am trying to calcualte plastic dissipation in UMAT and use it as heat source in HETVAl to get temperature rise.  I do not know how to add plastic dissipation calculation in UMAt.  I am wondering if some body  give me an example which is done close to what I want to do.