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  1. Stringmaker

    EB Welding Startup - Suggestions?

    I'm embarking on starting an electron beam welding company. I've worked as an engineer in gas turbine engines my entire career to date. Metallurgy and joining are fascinating as does seeing stuff come to life. You don't see many welding companies starting up these days. Any advice or...
  2. Stringmaker

    Using Substitution when Naming a Vector

    I have a vector: c = [20 25 27]' and want to name another vector by appending the name with an element from the vector c. For instance, I want to name a vector: omega25 = the name consists of the base 'omega' and the second element of vector c, c(2). How can one do this substitution...
  3. Stringmaker

    Too many input arguments using EIG function

    I have a simple eigenvalue problem I'm needing to solve. I'm using R14. Here is my m-file input: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% syms A E L p % Stiffness matrix K = ((A*E)/(15*L))*[35 -40 5; -40 80 -40; 5 -40 35]...
  4. Stringmaker

    Stress Engineer from US moving to Alberta - How's the work situation?

    I work as a stress engineer at a gas turbine manufacturer here on the east coast at the moment. I love doing structural/stress analysis work and using FEA as a tool to design and solve complex engineering problems. I'd like to move to Alberta, either Edmonton or Calgary, this coming year as my...
  5. Stringmaker

    Being Assertive About Your Level of Responsibility vs. Compensation

    I'm an ME and I graduated five years ago. I presently work for a gas turbine aircraft engine company as a structures engineer/analyst. Since starting with the company about 3 years ago I have always received great reviews. Here is my dilemma: I would like to receive a promotion but have not...
  6. Stringmaker

    Composite Usage in 400 F Environment?

    I'm interested in exploring the possibility of using composites within an aircraft engine environment - particularly for the rotor support structure. The forward parts of the engine are confined to temperatures of 400 degrees F or less. The environment would be an air-oil environment...
  7. Stringmaker

    Patran vs. Hypermesh (Ansys user inquiry)

    I'm looking for honest, objective feedback on the two. I'm a very experienced Ansys user and have some experience with Hypermesh but wouldn't label myself as highly proficient yet. I have very little Patran experience. I'm going to be working with Nastran more frequently and need to get...
  8. Stringmaker

    Fatigue Text Recommendations

    Can anyone recommmend me a text which is very good on fatigue? I guess I've never really heard of any one text being referred to as the bible of fatigue. Any recommendations would be appreciated. Thanks, -Brian
  9. Stringmaker

    Plotting Three Column Vectors As A Surface

    I'm a relatiely new Matlab user and I'm trying to plot a surface within Matlab and am not having much luck. I always get error or warning message that the matrix dimensions must agree. What I have is three column vectors, X, Y, and Z which all contain 21 entries. Each row in the three vectors...
  10. Stringmaker

    Returning Value Greater Than or Equal to Another Value

    Hi All, I have a dilemma of sorts on my hands. I have a series of points the compose a piecewise function. Say I have the following points data as a column vectors X Y 1.1 10 2.3 20 9.8 30 12.4 40 15.2 50 What I need to do is interpolate linearly inbetween these...
  11. Stringmaker

    Macro Execution Button On Worksheet

    I've seen Excel worksheets before where the user has a macro embedded as a button on the worksheet space itself and not in the toolbar. Apparently they took a few cells and made some sort of button with them and pointed those to a macro. Could anybody direct how to go about doing this or where...
  12. Stringmaker

    Running Excel via batch mode from another program

    Has anyone successfully done this? What I'd like to do is to call Excel from Ansys (my FEA program). I would need to read in values from a text file into excel and then export the output data from excel. I have envisioned doing this via macro but I would like to do this without opening the...
  13. Stringmaker

    Midsurface w/ Pro/E

    Is there any way to take the mid-surface of a protrusion within Pro/E? I have a sheet metal part which I need to export into an FEA program and the midsurface of this part is required to mesh with shell elements. Any help would be appreciated. I haven't been successful finding this in the...
  14. Stringmaker

    Which Linux Do You Use w/ Ansys?

    I'm using Windows x64 currently but I've got the itch to give Linux a shot due to it's lower overhead to run the OS and better memory management than XP64. I'm just curious what Linux other users on the forum are using to run Ansys. In particular those with AMD based systems running AMD64...
  15. Stringmaker

    Creating Components within ICEM

    I've meshed something within ICEM and want to import the mesh into Ansys for the solution. I have no problems writing an Ansys input file but I'm wondering is it possible to define components within ICEM for areas of contact, loadings, etc? To my knowledge ICEM only exports FE data (not solid...
  16. Stringmaker

    Good Stress/Structural Analysis books?

    I'm a 25 year old with a couple years under my belt now since graduating with my BS. While I work with FEA and damage tolerance methods everyday and am persuing my MS I'm looking for some good material on stress analysis. Does anyone have any suggestions of good books on this topic? I really...
  17. Stringmaker

    DesignModeler Question

    I have a parasolid body that I import into designmodeler. My experience lies completely within Ansys and I'm trying to block to cut this part up into sweepable blocks so that i can get hex mesh the part. My question is how can I cut this part up in DM? I've figured out how to creat lines from...
  18. Stringmaker

    PSD Analysis Question

    I'm performing a number of PSD runs on a structure with approximately 1 million DOF and between 0-2000 Hz it has 700 modes. To cut back run time and .rst file size during the mode combination step I am specifying different values of for significance value (command is PSDCOM,SIGNIF,,) and I've...
  19. Stringmaker

    Using the CEINTF Command

    I'm trying to join two adjacent solid regions using the CEINTF command. Having never used this command before and I think what I'm having trouble with is selecting the appropriate nodes and elements. I understand that it's typically recommended that the nodes of the finer meshed surface and...
  20. Stringmaker

    Harmonic Analysis Loading

    I have what is probably a simple question but one which for the life of me I cannot quite come up with on my own. I'm performing a harmonic analysis using Ansys 10 on an electronics chassis with some electrical components. My model consists of beams, solids, shells, and masses. There are four...

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