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Running simmechanics in discerete mode

Asked by pouya jamali on 29 May 2012

Is it possible to simulate a Simmechanics model in discrete mode?I tried to do that but Simulink showe me an error that there is a continues state in the block diagram but there isn't! What is the problem?Any one has any idea?


Kaustubha Govind on 29 May 2012

By "discrete mode", do you mean that you selected a Discrete Solver? Also, please paste the *exact* error message that you receive.

pouya jamali on 30 May 2012

Yeah! The error message is : The "FixedStepDiscrete" solver cannot be used to simulate block diagram 'piddiscrete' because it contains continuous states
thanks for your support

pouya jamali


1 Answer

Answer by Guy Rouleau on 29 May 2012
Accepted answer

SimMechanics requires a continuous solver. The solver can be variable or fixed step.

The fixed-step solver closest to discrete is ODE1. Since it has no minor time steps, it is almost equivalent.

If this does not do the job for your application, please let us know why.

1 Comment

pouya jamali on 30 May 2012

Do you mean that system response using the ODE1 and the discrete are the same?
thanks dear

Guy Rouleau

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