simmechanics joint initial condition tunable parameter

Question

Guoping Zhao 2018-5-7

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https://ww2.mathworks.cn/matlabcentral/answers/399559-simmechanics-joint-initial-condition-tunable-parameter

评论： Barnaby Pine 2022-2-28

Hi,

Is it possible to configure initial conditions of joint block (e.g. initial position, velocity) as tunable parameters? I'm running the simulink model in Rapid mode. I need to configure the joint initial states as tunable parameters so that I don't have to rebuild the whole model every time I change the initial conditions.

Thanks.

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Answer 1

Lucien Hollins 2020-11-17

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Hi,

You will need to make the run-time parameters option visible if you have never used them before. The option to switch individual parameters from compile-time to run-time is colocated with each parameter that is run-time enabled.

Note that run-time parameters are not exactly the same as tunable parameters. Some features may vary slightly from one release to another.

https://www.mathworks.com/help/physmod/simscape/ug/set-the-run-time-parameters-visibility-preference.html

https://www.mathworks.com/help/physmod/simscape/ug/how-simscape-run-time-parameters-differs-from-simulink.html

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Barnaby Pine 2022-2-28

Thank you!

This answer has really helped me in my endeavours!

Took far too long for me to find this out!

Kind regards,

Barnaby Pine

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Answer 2

Steve Miller 2019-4-2

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Yes, you can. The initial conditions can be configured to be run-time parameters so that you can modify them between simulation runs without compiling.

--Steve

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Guoping Zhao 2019-4-2

Hi Steve,

Could you be more specific? I'm using Matlab 2018b. And I cannot find the way to configure the initial conditions of joint blocks to be run-time parameters.

Thanks.

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