Search results for query: *

All, Thanks for all the helpful suggestions. ___________________________________________________________________________________ IRstuff I made a mistake in posting the same question on other forum. Sorry about that. I appreciate your help...

All, Thanks for all the helpful suggestions. ___________________________________________________________________________________ The lid can be treated as a beam and the force required to deflect it can be calculated. From there, given the screw pitch, etc., you should be able to...

Hi, Thanks for the quick response. For the example of the "Shoe Box and Cover", One can install fasteners on one side easily and as you torque the fasteners, parts will make contact but the opposite side of the assembly will have a gap due to clearance/tolerances. I was referring to...

Hello, I am asked to estimate torque required to bring mating parts in contact that could have an initial gap. A simple example could be an assembly similar to a shoe box with cover. If I were to provide fasteners on longer sides of the cover to assemble the cover to box, and if initially...

Hello, I am asked to estimate torque required to bring mating parts together that could have an initial gap. A simple example could be an assembly similar to a shoe box with cover. If I were to provide fasteners on longer sides of the cover to assemble the cover to box, and if initially there...

rb1957 I am using ANSYS. I have used NASTRAN/ PATRAN ten years ago. Customer is specifically asking for beam model that would be accurate enough for first couple of frequencies only. I did not enquire whether customer would be satisfied with the stiffness matrix in lieu of the beam model but...

Rb1957 Correct. Customer is looking to reduce the size and complexity of this model specifically to a beam model. Greg Locock, I am leaning toward, representing beam by sections that may approximately represent cross sections at various places. I can split the assembly in four segments and...

Hi All, I need help with general guide lines to create a beam model for a complex assembly with steel and aluminum parts, that would match at least first few frequencies. Since customer wants a beam model, shell model is not an option. For known cross sections (angle, channel etc.,) I can...

Thank you FEA way! I never had to build a reduced beam model to represent a complex assembly so wanted to learn from the experts here. Yes my model is too complicated with steel and aluminum alloy parts. I can build a model with shell elements. However, customer wanted a reduced beam element...

Hi All, I need help with general guide lines to create a beam model for a complex assembly that would match at least first few frequencies. For known cross sections (angle, channel etc.,) I can build the model. However, for complex assemblies with many subassemblies, I am...

Rick, That was quick. I struggled for few days to get info on ANSYS APDL which is scarce (except for the help in mechanical) more particularly on sample examples/tutorials. Coding and syntax is little different than FORTRAN....I think. I will implement your suggestions in my bigger...

Hi All, I am new to ansys apdl and am not familiar with the coding. I know I am not doing this right. Can someone help me with this code. I am trying to write x, y and z displacements to arrays dx, dy and dz I appreciate your help! Thank you, Dipak /post1...

Hi, I know a code (J script) can be written to export the maximum and minimum values of Von-Mises stress results for all components in a FEM model to a text file that can be imported into excel. Can anyone let me know if this has already been done? Thanks in advance for your help! - Dipak

J script for exporting Von Mises Stress Hi, I know a code (J script) can be written to export the maximum and minimum values of Von-Mises stress results for all the components in a FEM model, to a text file that can be imported into excel. Can anyone let me know if this has already been done...

Flash3780, Sorry for the delay in replying to you. I fixed the CATIA model and started getting good results. For frictional contacts, we need to experiement a little as too much penetration or gap does not work. Line to line contact works and then if needed interference levels can...

Hi, I am new to ANSYS. In my model I have four ball joints. However, due to the modeling error in CATIA, one of the ball joint resulted in an interference fit and remaining three have 0.06" gap in ball and socket. Ideally all four ball joints should have been the same. When I set...

Hi, I need help regarding test setup for determining relative displacements using accelerometers at two locations during random vibration. We had done this before about 6 years back but I have forgotten the details. 1. Install two accelerometers at two locations 2. Take output...

Thank you FeX32 !! I will try this code. Appreciate your help. - Dipak

Hi, I am getting wrong results and hence trying to figure out if I am computing FFT from time domain data right. Here is the code for matlab (MATLAB 7.5.0; R2007b). AllData.dat file contains time in first column and X moment in the 5th column. load AllData.dat; Time = AllData(:,1); Mx =...

Kenneth, Thank you very much for your prompt reply. I found the paper and all the information that I was looking for is in there. Thanks again, Regards, - Dipak