协同仿真的Simulink：逐步执行和与外部应用参数交换 [英] Co-Simulation with Simulink: stepwise execution and interchange of parameters with external application

问题描述

我要实现的Simulink耦合模拟和外部应用程序（LS-DYNA）。领先的仿真在Simulink中，在这里我想实现一个功能块如下进行：

I have to realise a coupled simulation with Simulink and an external application (LS-DYNA). The leading simulation is done in Simulink, where I want to implement a function block as following:

交互使用Windows的CMD完成，因此Simulink模块应做到以下几点：

The interaction is done using the cmd of windows, so the Simulink block should do the following:

function [ x,y ] = ExternalSimlation( u,v )

% open the windows cmd and run the external simulation by passing u and v
[status,cmdout] = system( 'command for executing the external simulation -u -v');

    function [ x,y ] = readcmd( cmdout )
        %algorithm to evaluate the cmd output
    end

    [x,y] = readcmd(cmdout);

end

确切code不应该与此有关。我的问题是，我怎么能实现该接口到Simulink模型？我可以使用自定义功能模块之一，用我的code以上，这是否行得通呢？但哪一个，我实在看不出区别。

The exact code should NOT be relevant here. My question is, how can I implement the interface into the simulink model? Can I just use one of the custom function blocks, use my code above, and it will work? But which one, I don't really see the difference.

OR，我的另一个想法是建立类似以下内容：

OR, my other idea was to build something like the following:

，然后使用whil​​e循环是这样的：

And then use a while-loop like this:

while ... do
[u,v] = sim('model', 'x',x,'y', y, 'some option just to run a single step');
[x,y] = ExternalSimlation( u,v )
[u,v] = sim('model' .... next step ...)

执行SIMULINK模拟一步一步。我如何才能实现呢？ （模拟的其余部分包含复杂的控制算法，推导和集成）

to execute the simulink simulations step-by-step. How can I realise that? (The rest of the simulation contains complex control algorithms, derivations and integrations)

我没有书面的批处理文件的经验，但对我来说似乎是可能的。

I don't have experiences in writing batch files, but that seems possible for me as well.

如果你想知道为什么我不只是测试的东西出来，那是因为我没有可用的外部应用程序（我只知道怎么输入和输出的作品），并且不希望在编写一个浪费时间替代应用程序只是用于测试，如果这是不可能的。

If you wonder why I'm not just testing things out, it's because I don't have the external application available (I just know how the in- and output works) and don't want to waste time in coding a substitutional application just for testing, if it's not possible at all.

在加上模拟使用Simulink任何提示和经验的高度AP preciated！
谢谢！

Any hints and experiences in coupled simulations with simulink are highly appreciated! Thank you!

推荐答案

据我所知道的正确的方式耦合SIMULINK到其他应用程序是写
S-功能。如果外部应用程序有一个C / C ++接口，这也应该是迄今为止最好的解决办法的性能代价：
http://www.mathworks.de/de/help /simulink/create-cc-s-functions.html

As far as I know the "proper" way to couple simulink to other applications would be to write S-Functions. If the external application has a C/C++ interface this should also by far be the best solution performance-wise: http://www.mathworks.de/de/help/simulink/create-cc-s-functions.html

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