Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by khonfahm

  1. khonfahm

    High speed linear actuator required

    I need to be able to open and close the switch in 1/2 a 60hz cycle (8.333m/s). If the contact seperation distance is 80 mm.. this means 10 m/s average speed + Some ridiculous acceleration/deceleration....
  2. khonfahm

    Hydraulic Actuator Limits

    Thanks for the input. As Pnachtwey pointed out - the velocity is not the issue here. It is the Acceleration. I need to be able to open and close the switch in 1/2 a 60hz cycle (8.333m/s). If the contact seperation distance is 80 mm.. this means 10 m/s average speed. HPost - When you say they...
  3. khonfahm

    High speed linear actuator required

    Scotty, thanks for explaining to Mike the difference between the operators speed and the actual mechanisms speed. Mike - The critical component of most switchgear is the interrupting device. Some switchgear manufacturers just buy this part off the shelf. I need to test these different off the...
  4. khonfahm

    High speed linear actuator required

    I don't know why I didn't think of this earlier. The solution was staring me in the face.... I can get a high speed electric cylinder/cylcindrical linear motor... (http://www.tacrockford.com/product/machine-components/other/oswald-electric-motors/oswald-lins-cylindrical-linear-motors/) couple...
  5. khonfahm

    High speed linear actuator required

    You mean quantity or are you referring to money? Haha.
  6. khonfahm

    Hydraulic Actuator Limits

    Hi All, Thank you for taking the time to read this post. I am inquiring to see if these sort of speeds are achievable with a hydraulic actuator. 80 mm travel. Time : 8ms AVG Speed: 10m/s . Opening force: 1100N 70 mm travel. AVG Speed: 8.75 m/s Time: 8m/s. Opening force: 1100N 60 mm travel...
  7. khonfahm

    High speed linear actuator required

    Thanks again for your response. I will look into the Motioneering Program today. In regards to designing the hydraulic system... I really don't want to have to go into the specifics too much myself. Ideally I would like a company with the experience in making them to specify what I need for...
  8. khonfahm

    High speed linear actuator required

    Thanks for the suggestion ScottyUK - for the actual device - we plan to use the trusted stored energy system. Right now while we develop the interrupting device we need to develop a mechanism to do the testing for various configurations. With the stored energy system, there is not much room for...
  9. khonfahm

    High speed linear actuator required

    Apologies for the confusing spec - and thank you for bearing with me in trying to suggest a solution. It will need to be used mulitiple times and is not a once off solution. 10 m/s is the opening speed for an 80mm distance. If it is a 70 mm distance, the opening speed required is : 8.75 m/s...
  10. khonfahm

    High speed linear actuator required

    Hi all, I'm basically after a linear actuator on steroids. Here are the required specs: 0-80mm stroke, 1040N Force, 0-10m/s speed. I have found a few products that would almost be suitable...
  11. khonfahm

    help..nonlinear dynamic program for research?

    Okay. Non Linear transient solvers. Have a look at these programs. You can request a free demo and trial them until you find the software you are happy with. Femap with Nx nastran; Ansys Mechanical; Altair Hyperworks are all worth checking out. Ansys, is by far the most user friendly.
  12. khonfahm

    Hyperform Autotipping

    Hi All, I am using the Hyperform package from the Altair HyperWorks suit. My question is that I am a bit unsure what the auto-tipping function does. Does anyone have any idea? It seems to output an angle, after 'calculating the auto tip'. From what I understand, it is the angle which the...
  13. khonfahm

    help..nonlinear dynamic program for research?

    Mate, I think you need to be a little bit more clear with your question. I'm not a 100% sure what you are asking for. Do you want an FEA solver that can model the non linear properties of steel, under various loading conditions? If that's what you want: Femap with Nx nastran; Ansys...
  14. khonfahm

    FEA Software/Comparison

    Thank you for the responses so far. I am definitely investigating Altair Hyperworks at the moment. I really like the lay out of Ansys work bench. For a beginner it really is quite a great piece of software. Only problem is that they seem to charge a lot more than their competitors. Getting a...
  15. khonfahm

    FEA Software/Comparison

    Hi all, This is my first post on this forum. I am located in Australia working as a mechanical engineer. Our Ansys License has expired (Technical support no longer available- Product purchased outright), and for some reason it doesn't allow the setting of 'large deflections' to be turned on...
See more

Part and Inventory Search

Back
Top