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Which statement about multidisciplinary optimisation is FALSE?

  • A.It is computationally cheaper than optimising disciplines separately
  • B.It can accept a compromise in one discipline for a better whole
  • C.The interactions between disciplines dominate the result
  • D.It requires the coupled system to be evaluated repeatedly

Answer: A

Correct answer: It is computationally cheaper than optimising disciplines separately

This is the false statement. Coupling the disciplines means the whole system must be evaluated at every point in the search, which is far more expensive than optimising one discipline at a time with the others frozen. The expense is accepted because the interactions dominate the answer, and it is mitigated with surrogate models and designed experiments rather than avoided.

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