Orcaflex simulation in Matlab - How to change variables automatically until results are satisfied?

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Zebedee Mojuntin 2017-7-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/350845-orcaflex-simulation-in-matlab-how-to-change-variables-automatically-until-results-are-satisfied

This is my code. It's an interface between Matlab and Orcaflex software.

model = ofxModel('Model2.sim'); % Existing model in Orcaflex
    % Create a new Line
    line = model.CreateObject(ofx.otLine,'Line2');
    line.EndAConnection = 'FPSO'; % Connect the Line top end to the Vessel
    line.EndBConnection = 'Anchored'; % anchor the Line bottom end
    % Set the Line end positions
    line.EndAX = 36.0;
    line.EndAY = 1.732;
    line.EndAZ = -7.5;
    line.EndBX = 900.0;
    line.EndBY = 1.732;
    line.EndBZ = 0.178;
    % Set the section lengths
    linetype = model('Flexible riser');
    line.Length(1) = L(1);
    line.Length(2) = L(2);
    line.Length(3) = L(3);
    %Save data and run simulation
    model.SaveData('Model3.dat');
    model.CalculateStatics;
    model.RunSimulation;
    model.SaveSimulation('Model3.sim')
    RangeGraphResults = line.RangeGraph('Max von Mises Stress');
    max_values1 = RangeGraphResults.Max;
    RangeGraphResults = line.RangeGraph('Effective tension');
    max_values2 = RangeGraphResults.Max;
    % Effective tension
    b = max(max_values2')
    % Allowable tension
    maxVal = 4329e3;
    % Check if condition is met
  if (b <= maxVal)
      disp('Value within specified range.')
  elseif (b > maxVal)
      disp('Value exceeds maximum value.')
end

My question: Is it possible to re-run this simulation with different values of L(1), L(2) and L(3) until the condition is met automatically, where 875<L(1)<925, 165<L(2)<330 and 280<L(3)<380? Or at least change one variable?