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Consider the following statements about multidisciplinary optimisation:

1. It optimises the system rather than each discipline separately.

2. It may accept a compromise within one discipline for a better whole.

3. It is cheaper to run than single-discipline optimisation.

Which of the statements given above is or are correct?

  • A.1 and 2 only
  • B.1 and 3 only
  • C.2 and 3 only
  • D.1, 2 and 3

Answer: A

Correct answer: 1 and 2 only

Statements 1 and 2 define what multidisciplinary optimisation is for. Statement 3 is the opposite of the truth: coupling the disciplines means evaluating the whole system at every step, so it is very much more expensive than optimising one discipline at a time. The cost is accepted because the interactions dominate the result, and surrogate models exist largely to make it affordable.

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