Drive Shafts
 

DANA Commercial Drive Shafts Catalogue

General fundamental theory
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General technical terms of propshaft application

For the application of propshafts of the series Compact 2000 a special calculation method and software has been developed. This calculation method is based on general physical terms and additional experiences of real vehicel measurements.

The fundamental items of the "VAMP-method" (Vehicle Application Method for Propshafts) reflect to:

vehicle parameters
operating conditions
characteristical values of Compact 2000 propshafts
special customer requirements


According to these the following parameters are checked:

  • Fatigue Strength
    Criteria for fatigue strength is the maximum generated torque in the driveline under normal operating conditions. lt is determined by:
      a) the maximum driving torque
      b) the maximum adhesion torque

    In relation to the relevant criterion the size of propshaft with the sufficient static capacity Tcs is determined. Up to this torque limit a shaft can be loaded without disturbing the function of the driveline.

  • Structural Strength
    The structural strength is based on the maximum torque which can occure under extreme conditions or misuse. Limitations which refer to the adhesion torque are also taken into account.

  • Lifetime of a Unit Pack
    The lifetime of a unit pack is calculated by use of specific load distributions from the customer or parameters of general inhouse measurements and experiences.

  • Speed, Working Angle, Length
    Criteria are:
    - the relation of the maximum speed during
    - the excitation of torsional vibrations genera-ted by propshaft speed and working angle


Finally the optimal propshaft size will be recom-mended.

To identify specific characteristical values of e.g. special dynamic behaviour of drivelines we can support the customers with simulation calculations and vehicle measurements.


Please contact our application experts for these and aIl other items.

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