Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations waross 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 ForestGump

  1. ForestGump

    OHV Cam Drive

    Some resources said that the OHV engine can only have timing chain or gear and not belt. Is this true? If yes, can anybody give me a reason? Thanks!
  2. ForestGump

    Toyota 7K-E Engine Valvetrain

    Could anybody tell me the following information of Toyota 7K-E engine? 1. Valvetrain Marketing Name 2. Valvetrain supplier 3. Valvatrain actuation mechanism (e.g. hydraulic or mechanical) 4. Type of Valve Actuators (e.g. Direct actio, finger follwer etc.) 5. Phasing mechanism (e.g. continuous...
  3. ForestGump

    How to determine the shifting schedule of automatic gearbox?

    Can anybody give me a detailed description on how to determine the gear shifting schedule? Also, what causes the difference between upshift and downshift curves(they obviously don't follow the identical locus)?
  4. ForestGump

    Torque multiplication versus slip

    "The best I can come up with is the idea that torque multiplication is proportional to the ratio of flexplate RPM and input shaft RPM much like it would be for a chain or a set of gears. So for example engine at 5000 rpm and the input shaft is doing 2500 rpm in a perfect world the torque at...
  5. ForestGump

    Limited Slip Diff Clutch Modelling

    1. Clutch plate material (nitirided steel) 2. for wet friction, typical coefficient is around 0.10. 3. effective radius can be estimated based on the load distribution and the geometric configuration of the disc.
  6. ForestGump

    how to calculate the friction force due to o-ring compression

    Thanks. But how can I calculate the normal force or stress in this case? I mean when the o-ring has one side in contact with the sidewall of the groove, it is essentially deformed like a "D" ring.
  7. ForestGump

    how to calculate the friction force due to o-ring compression

    yes, I mean the sliding in axial diretion. Assuming the grrove is narrow, then the o-ring moves together with the slider until it has contact with the sidewall of the groove, i.e. its one side in contact with wall, the other side is driven by the fluid pressure.
  8. ForestGump

    how to calculate the friction force due to o-ring compression

    I am trying to calculate the friction force due to a sliding o-ring. In this case, the o-ring has compression from the slider and also has contact with the side-wall of the groove. I can only find the calculation when there is no contact with sidewall. Please give me your 2 cents.

Part and Inventory Search