OMNotebook Error: Class dev not found in scope (looking for a function or record)

Question

我修改了 DrModelica 中的 van der Pol 示例，进行了以下更改：

model FPStirling "Free Piston Stirling engine model"
  Real x(start = 1,fixed = true);
  Real v(start = 1,fixed = true);
  Real T(start = 1,fixed = true);
  equation
  der(x) = v;
  dev(v) = T/x-1;
  dev(T) = 1 - x;
end FPStirling;

计算 returns：{FPStirling}

然后我运行：simulate(FPStirling, startTime=0, stopTime=25 )

但我得到了输出：

record SimulationResult
    resultFile = "",
    messages = "Failed to build model: FPStirling"
end SimulationResult;
OMC-ERROR: 
"[7:3-7:17] Error: Class dev not found in scope FPStirling (looking for a function or record).
Error: Error occurred while flattening model FPStirling
"

会不会是路径问题？

Answer 1

你真的在某处定义了函数 dev 吗？或者它可能是 der.

的拼写错误

阿黛尔。

OMNotebook Error: Class dev not found in scope (looking for a function or record)

OMNotebook Error: Class dev not found in scope (looking for a function or record)

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