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  1. Vahid_Daneshmand

    Modal analysis of acoustic cavity with flexible boundary

    Hi, I want to know is it possible to perform a modal analysis of acoustic cavity with “flexible boundary” in MSC NASTRAN? for example for finding the acoustic modes of passenger compartment of a vehicle...
  2. Vahid_Daneshmand

    Defining frequency dependent constraint in Nastran sol 200

    Hi, I want to define a constraint for a topology optimization problem that uses frequency value (Nastran sol 200). In the other word the constraint will update for every frequency value during a forced response analysis for each optimization loop. How can I fetch and use frequency value for...

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