[zengke]

Hello,

I am simulating the ship motion with rudder by using the DFBI. However, because of the DFBI, I can't monitor the rudder angle alone. So I need to write some java scripts.
for example, some details are given as following:
// STAR-CCM+ macro: tt.java
// Written by STAR-CCM+ 11.04.010
package macro;

import java.util.*;

import star.common.*;
import star.base.neo.*;

public class tt extends StarMacro {

public void execute() {
execute0();
}

private void execute0() {
double Deltatime;
double RudderSpeed;
double RudAngle = 0.0;
int i;

Simulation simulation_0 =
getActiveSimulation();

ImplicitUnsteadySolver implicitUnsteadySolver_0 =
((ImplicitUnsteadySolver) simulation_0.getSolverManager().getSolver(Implicit UnsteadySolver.class));

Deltatime = implicitUnsteadySolver_0.getTimeStep().getInternal Value();

for (i = 0; i < 300; i++)
{
ExpressionReport expressionReport_0 = (ExpressionReport)
simulation_0.getReportManager().getReport("RudSpee d");

RudderSpeed = expressionReport_0.getValue();

RudderAngle = RudderAngle + RudderSpeed*Deltatime;

ExpressionReport expressionReport_1 = (ExpressionReport)
simulation_0.getReportManager().getReport("RudAngl e");

expressionReport_1.setDefinition("RudderAngle");//the problem is here
}
}
}

Before I write this java, I have created the report "RudSpeed" and "RudAngle". I want to use the loop with the equation (RudderAngle = RudderAngle + dt*RudderSpeed). Can you give me some suggestions? or Are there any other good ways to monitor the Rudder angle in the DFBI motion?

Thank you for your help!

[me3840]

I'm confused as to what you're doing. There are reports built in that track angles of DFBI bodies.

You have a loop written in your code but it's not iterating over anything. Why do you need all this just to monitor the angle?