Simulink/SimMechanics: how to refer to a value from the previous time step

Question

Roelant 2013-11-18

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/106631-simulink-simmechanics-how-to-refer-to-a-value-from-the-previous-time-step

评论： Roelant 2013-11-18

采纳的回答： Azzi Abdelmalek

Question

Is it possible to refer to values that are determined in a previous time step, using Simulink/SimMechanics?

Context

I am modeling a system in SimMechanics where the positions of joints are driven by the output of a state-space system. The input for this state-space system are also the positions of these joints. Clearly, this creates the need for algebraic loops. If I understand it correctly, in SimMechanics a solution is searched where all subsystems are consistent at every time step.

For my specific problem, I want to try a partitioned approach. That is, I want to use the positions of the previous time step as input for my state-space system. Thereby, I won't need algebraic loops anymore.

Thanks in advance!