Misssion segments are not converge well after several flights

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Zhao Chunrong

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Dec 19, 2022, 8:12:22 PM12/19/22
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Hi,

I am running flight missions (8 flights per day, 10 days), and each flight has 12 segments. After running several flights, the convergence is becoming worse, more interestingly, the divergence segment might not be fixed at the same segment.  Could anyone kindly suggest it?

best regards,
Chunrong

the error message is reported as below:

Rotor BEVW did not converge to a solution (Stall)
Rotor BEVW did not converge to a solution (Stall)
Rotor BEVW did not converge to a solution (Stall)
Rotor BEVW did not converge to a solution (Stall)
Rotor BEVW did not converge to a solution (Stall)
Rotor BEVW did not converge to a solution (Stall)
Segment did not converge. Segment Tag: Descent_Transition_F_1_D7
Error Message:
The iteration is not making good progress, as measured by the
  improvement from the last five Jacobian evaluations.

Emilio

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Dec 20, 2022, 12:31:20 AM12/20/22
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Hi,
How are you running these simulations? The proper way is to append 960 (8 flights x 12 segments x 10 days) segments. We usually just write a for loop because that would be horrible to enter.

Is there battery degradation modeled? Have you run for less days to see if the battery is no longer charging or something?

-Emilio

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