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Recent content by GSC

  1. GSC

    Alternating ram w hydraulic bearings

    Yes, the ram is stroking horizontally and has dynamic vertical vibration due to its own weight. I don't say it has no horizontal vibration excited by the machine's own drive system, but problems arise from the vertical vibration only... e.g. the ram hits the cylindrical tool around it near the...
  2. GSC

    hydraulic bearing w pressure control

    Do such bearings have significant damping or rather the material damping of the ram shall be considered in the model? I assume that the stiffness of the bushing against rotation/bending of the shaft would also derive from the bearing stiffness, right? GSC
  3. GSC

    hydraulic bearing w pressure control

    Hi, A long cylindrical ram which is making axial alternating movement, and bending mostly due to its own weight. The ram is supported by two hydraulic bearings with pressure control and a slide joke at the drive side. The vertical vibration of the ram often causes problems at certain speeds. We...
  4. GSC

    Alternating ram w hydraulic bearings

    Hi, We have a long cylindrical ram which is making axial alternating movement, and bending mostly due to its own weight. The ram is supported by two hydraulic bearings with pressure control and a slide joke at the drive side. The vertical vibration of the ram often causes problems at certain...
  5. GSC

    FEA of hydraulic bearing

    Drej> Thank you for your post, I see the point in modelling the bearings as springs and assuming that material damping is present. Can you please explain to me what do you mean with considering the type of connection when applying the damping? Do you refer here to the bearing type in the real...
  6. GSC

    What is the best engineering advice you ever received?

    To stupid questions you can only get stupid answers. GSC
  7. GSC

    FEA of hydraulic bearing

    Hello, I would like to build an FE model to investigate the dynamics of a long shaft which is making axial alternating movement, and bending mostly due to its own weight. The shaft is supported by hydraulic bearings with pressure control. How shall I take these bearings into consideration in...
  8. GSC

    FEM sources

    Try the Visible Human Project for the heart shape. Somewhere deep there you can download the raw image data. I had success with it modeling the spine. http://www.nlm.nih.gov/research/visible/visible_human.html gsc
  9. GSC

    Metric II

    Tobalcane > When we weight something in metric we weight according to Isaac Newton's Second Law of Motion. The acceleration of an object is proportional to the force exerted on it divided by the mass. This is how force is normally defined, by the formula usually stated as F = k·m·a. (The units...
  10. GSC

    residential home wall reinforcement against shear load

    Hi, I am a mechanical engineer, I have a good knowledge on steel structures, but almost nothing when it comes to bricks or concrete. I need to reinforce my house wall. I think the structure what was asked for is what you call shear frame, but please correct me if I am wrong. In practice I...
  11. GSC

    MRI or Laser Scan for 3D Model of Brain Lobes

    Hi, Check out the Visible Human Project http://www.nlm.nih.gov/research/visible/visible_human.html gsc
  12. GSC

    Convincing Others / Influencing Others

    MVD, What you described is really typical in the NL. Everyone must agree even for the simplest decision. I personally took it on a way that the questions they ask are not offending. They are not questioning my authority or knowledge. It is just curiousity, and they want to make sure, that...
  13. GSC

    Nobody offers me a job, even an interview...!

    -I agree with RDK, good or perfect resumee and CV is a very important phase of jobhunting. -Assess how many applications you have sent. 1 interview from 30 applications is good in the UK being non-british. -Due to the increased security measures in the english speaking nations since Sep.11...
  14. GSC

    Is this standard business practice?

    I agree with brad in terms of that changing the license server is a change to the network, however charging you for administration fee after an incidental hardware failure is completely insane, and unacceptable. Even if it is stated in the license agreement, the business manager should act as...
  15. GSC

    Pressure sensors to measure force for walking

    http://www.sensorprod.com/ No experience, but seen various papers and reports on the topic here and there; mostly on knee joints. gsc
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