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Is it possible to make dynamic friction time-dependent? I need to use a changing dynamic friction coefficient to simulate the behavior of guides that are not lubricated equally.

Is it possible to make dynamic friction time-dependent? I need to use a changing dynamic friction coefficient to simulate the behavior of guides that are not lubricated equally.
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  • You do not state if this is a joint friction or a contact friction.
     
    The joint friction can only take a scalar value for the friction coefficient. However, when running the analysis using a solver script (or acf-file in the external solver) you can issue commands to change these values. Have a look at the online help for the Adams Solver -> C++ Version of Adams Solver -> C++ Commands.
     
    The contact friction cannot be changed the same way as described above.
    To be able to change the contact friction, you will need to use a CFFSUB subroutine to model and change the friction.
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  • You do not state if this is a joint friction or a contact friction.
     
    The joint friction can only take a scalar value for the friction coefficient. However, when running the analysis using a solver script (or acf-file in the external solver) you can issue commands to change these values. Have a look at the online help for the Adams Solver -> C++ Version of Adams Solver -> C++ Commands.
     
    The contact friction cannot be changed the same way as described above.
    To be able to change the contact friction, you will need to use a CFFSUB subroutine to model and change the friction.
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