The importance of optimal design for parallel structures

In the last recent years parallel structures have found applications outside the field of Flight simulator: machine-tool, virtual reality, fine positioning devices, etc.. For each of these applications the performances requirements are quite different. It is therefore very important to design parallel structure in accordance with the considered application, especially as for this type of mechanism the performances vary heavily according to the mechanical architecture and its dimension. We will present some design problems in order to show that optimal design for parallel structure is an open and difficult problem.

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