How can I show Through variables of a Composite Block in Simscape

Question

Cedric Götze 2015-7-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/230931-how-can-i-show-through-variables-of-a-composite-block-in-simscape

回答： Cedric Götze 2015-7-27

采纳的回答： Cedric Götze

在 MATLAB Online 中打开

Hello

is it possible to show a through variable in the simscape blocks variable section of a composite block.

    variables(Access=privat)
        G = {0,'kg/s'};
        Q = {0,'J/s'};
    end

I integrated the following objects:

    components(Hidden=true)
        chamber = foundation.pneumatic.elements.chamber(Volume=Volume);
        orifice = foundation.pneumatic.elements.orifice(Area=Area);
        atmosphere = foundation.pneumatic.elements.atmospheric_reference;
    end

And connected them with

    connections
        connect(chamber.A, A);
        connect(orifice.A, A);
        connect(orifice.B, atmosphere.A);
    end

The Across Variables are show right, but the the through variables create an error

    equations
        p == A.p;
        T == A.T;
        G == A.G;
        Q == A.Q;
    end

Error:

Unexpected function or variable 'A'.

Branches can't be used when components are used. Has anybody some kind of idea, for instant by using function setup?

By the way G chamber + G orifice = G and Q chamber + Q orifice = Q.

Thank's in advanced.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Cedric Götze 2015-7-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/230931-how-can-i-show-through-variables-of-a-composite-block-in-simscape#answer_187285

在 MATLAB Online 中打开

The Answer was easier than I expected

    equations
        p == A.p; % Pressure
        T == A.T; % Temperature
        G == orifice.G + chamber.G; % Mass flow
        Q == orifice.Q1 + chamber.Q; % Heat flow
    end