Optimisation of a bow riser using the autogenetic design theory

Abstract

The autogenetic design theory (ADT) is an approach aiming at modelling and supporting the design activity as the primary activity within the product development process. A new product development model must consider the mixed process of searching, adopting existing knowledge, learning, evaluating, selecting, and combining. Such methodologies are also found in biological evolution (the corresponding activities there are replication, evaluation, selection, recombination). The ADT is based on the idea that new solutions (individuals) can be developed by the use of evolutionary methodologies. Under the pressure of selection, good properties of the preceding solutions (parents) are passed on to the succeeding solutions (children). \noindent Typically, the riser of a recurve bow has to be of light weight and high stiffness. The challenge for the designer is to find the solution which best meets both demands. Due to the large number of technically possible designs, it is inefficient to model and evaluate more than a few designs manually. By applying the ADT, the designer has the ability to consider a large number of possible designs, which raises the probability of finding the best possible solution. In this case, the ADT allows us to reduce the mass by 22% while keeping the stiffness at the same level.

Acknowledgements

This study was supported by the Federal Institute of Sport Science (Bundesinstitut für Sportwissenschaft; reference no.: VF 0408/15/40/2003), Bonn, Germany.