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Hi all, I am struggling with unconvergent problems of a 3-D node-to-surface contact. I am modelling a subject moving on a curved beam. My moving thing consists of MASS21, LINK11, CONBIN40 and BEAM4 elements. Because its displacements follow on a curved line, so I rotate all of the moving...

Hi all, I am modelling a cube sliding on a simple curved beam with a constant velocity by using a surface-to-surface contact pair. I used to use successfully the command "D, NodeOfCube, UX (UZ), %XDISP1%" to move the cube with a constant velocity. Now, I want to transfer the centrifugal...

Hi all, I am modelling a curved beam with tangential boundary conditions. I use the command "CSYS, 5" to activate the global cylindrical coordinate to model my finite elements, and it is ok. However, when I apply the BCs by "D, ...", all of these restraints are in cartesian coord although I do...

Hi everyone, I am doing a contact transient analysis using Ansys 10. Most of the analyses are converged without any problems. However, there is one that is stopped in the middle without any errors or warnings prompted in *.err, in output file... There is only a message in nohup.out (It is run...

I am doing a transient contact problem. Because my problem takes a long time to finish, I set up parameters for a multiframe restart. When Ansys runs throughout to the end, the result output is correct as what I set in OUTRES parameters. However, when I restart the analysis, I can get all the...

Hi everyone, I have a transient analysis with 2 loadsteps. Each loadstep has different loads and boundary conditions. I set the RESCONTROL for 10 points for all loadsteps. Unfortunately, my analysis is not converged within the fist loadstep. So, if I only change the timestep and restart this...

Hi all, I have a curiosity that what data ansys actually writes in its *.rst file? I do 2 transient analyses of the same problem, the same time steps, the same time duration but different numbers of loadstep. The first analysis is with 2 loadsteps and the second is with 4 ones. I specified the...

Hi all, In my output result files, I took many informations in every time steps. So, now my result files are too large to store. In addition, my analyses take a long time to finish, so I cannot re-run these problems. Is there any way to remove some of the undesired informations from the result...

Hi all, I write a simple input to read data from a text file as below: *DIM, RNESS, TABLE, ((LEN/X_STEP)+1), *TREAD, RNESS, 'R41', 'PROF', ' ', 1, The input works well under ANSYS10 for Windows. However, It cannot run in ANSYS10 for UNIX and issues a "*TREAD error in data read". The...

Dear all, I am doing a trasient analysis in Ansys10. In the output file, I notice that the mass summary by element type of 300 is not the same as what I input as shown below (type 300 is MASS21). However, the summation of reactions in a static analysis is correct. Could you please explain...

Dear all, I am running a job on a UNIX server of my university with: nohup ansys100 -b -i XXX.inp But now I find a mistake that cause Ansys run forever!!! Could you please tell me a way to stop it. Thank you very much.

Hi all, I generated many shell elements from an area. Now, I want to modify only several coordinates of the nodes attached to the area. Ansys does not allow to do that, so I want delete the meshed area but retain the elements to modify the coordinates. It is possible to do that? Many thanks...

Hi friends, I am learning to use batch mode from the UNIX command line. The documentation of Ansys lists 4 lines as below without detailed explaination: ------------------------ Foreground execution (ksh or sh shells): ansys100 -b -p productvar < inputname > outputname 2>&1 Background...

Hi all, Everytime reruning the model, ANSYS appends the new error and log messages to the existing files. Could anyone tell me to tell ANSYS overrides the current *.log and *.err files. Thank you in advance. Bridge

Hi friends, Could you please tell me how to model a hinge at a beam end? Whether I have to use coupling dofs? Thank you very much.

Dear all, I am modeling a spring-mass-damper system moving on a surface of a beam using contact pair. In case of straight beam, I applied an initial velocity for the moving system, and the model was successfully solved. However, in case of curved beam, I really donnot know how to let the...