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Recent content by harid

  1. harid

    Effect of Different fuels on Alumina oxide precision balls

    Hello everyone, Could anyone help me understand what kind of effect would different fuels like TF1 E-10, TF2 M-5/E-2.5, Methanol 12%, Ethanol 22%, Hydrogen peroxide, Corrosive E-22 gasoline have on the precision ceramic (Alumina oxide 99%) balls used in automotive applications in a fuel tank...
  2. harid

    Pre-Stress on a part

    Hello everyone, Could anyone help me how to subject a part to prestress caused by 1000N tension force and then apply 10N cyclic loading(10N in compression and 10N in tension). The part is a hollow cylinder with side through holes. I want to model this in WORKBENCH 8.1 .Please help me out with...
  3. harid

    Cyclic Loading in Ansys

    Hello friends, Could you guys help me with this analysis. I want to simulate cyclic loading on a small cylindical hollow part with 2 symmetrical holes on its surface at the centre of the part. I want to constrain in all directions at one end and subject the other end to 50N in tension and 50N...
  4. harid

    Appropriate Steel which survives durability cycles

    Hello friends, Could u please help me with the question I posted... Israelkk could u please help me out..i would really appreciate it. Thank you Harid
  5. harid

    Modal Analysis in Loaded condition

    Hello Friends, Could anyone help me find a way how to simulate modal analysis in loaded condition. How to do modal analysis on a pre-stressed model. For example there is cantilever beam fixed at one end and the other end is loaded by 100N force, can we find the natural frequency of the beam in...
  6. harid

    Appropriate Steel which survives durability cycles

    Thanks for the replies.. It is a regulator. used as active regulating item.The sealing ball is loaded by spring. The ball sits on coin band. when fuel flows through it at 400kpa, ball lifts by approx 250microns.Also could u please give an idea of cost comparison of the materials u suggested with...
  7. harid

    Appropriate Steel which survives durability cycles

    Thanks a lot for some good comments.. let me answer some of ur questions which might help u giving me solution for this problem. Tube is machined by us and hardened to RC30, ball of dia 7mm is seated on 6mm ID tube and press is used to hit on the ball to create the pre-coin. Coming to PH15-5...
  8. harid

    Appropriate Steel which survives durability cycles

    Thanks for the replies, really appreciate it.. I am using the steel ball for coining with a coin force of 800lbf get a good seal band, my operating pressures are 400kpa max. Does 52100 steel withstand such coin force? How is the cost compared to 416 which is cheap. Basically this assembly has to...
  9. harid

    Appropriate Steel which survives durability cycles

    Ball is 440 Stainless steel, tube is 416 Stainless steel. Starter fluid or EEE fluid is flowing through the assembly. The steel ball is pitting the coin band on the tube and wearing it off causing leak increase with number of cycles of flow. Wear could also be because of vapor bubbles...
  10. harid

    Appropriate Steel which survives durability cycles

    Hello Everyone, I would like to know wat kinda steel will be good( in terms wear resistance due to pitting of 440 steel ball on coin band) for a inlet tube which needs coining to seal a 440 steel ball sitting on the Inner dia of tube. Problem is the assembly leaks after 20,000 durability...
  11. harid

    Harmonic Analysis

    Hello corus, could u please elaborate it...or may be explain me how we can do that exactly in ansys..if possible steps to be followed in GUI.ur help is greatly appreciated. thanks harid
  12. harid

    Harmonic Analysis

    Hello Friends, I would need ur help in inputting vibration test schedule data for my harmonic analysis. I have a fuel rail, I found the resonating frequencies. I have my vibration test data given as follows for parallel to bore(vertical) Frequency(HZ) Accelaration(g) 20 3.3 500...
  13. harid

    Element type for Modal Analysis

    Thanks a lot Drej...Ur help is greatly appreciated.... Thank u all guys... cheers harid
  14. harid

    Element type for Modal Analysis

    Hello friends, I am doin modal analysis to get natural frequencies of a 450mm tube. I used Brick 8node Solid 45 and got the first mode frequency of 550Hz. Then I tried changing the element type to 20NODE Solid 95. I got the the first mode frequency at 460Hz. Could anyone suggest which elemnt...
  15. harid

    Rigid body

    Thank you Justin but I was kinda expecting the method using master nodes or something like that which i am not aware of. Thanks Harid
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