A computer-implemented method is provided for designing a restraint layer
of an inflatable vessel. The restraint layer is inflatable from an
initial uninflated configuration to an inflated configuration and is
constructed from a plurality of interfacing longitudinal straps and hoop
straps. The method involves providing computer processing means (e.g., to
receive user inputs, perform calculations, and output results) and
utilizing this computer processing means to implement a plurality of
subsequent design steps. The computer processing means is utilized to
input the load requirements of the inflated restraint layer and to
specify an inflated configuration of the restraint layer. This includes
specifying a desired design gap between pairs of adjacent longitudinal or
hoop straps, whereby the adjacent straps interface with a plurality of
transversely extending hoop or longitudinal straps at a plurality of
intersections. Furthermore, an initial uninflated configuration of the
restraint layer that is inflatable to achieve the specified inflated
configuration is determined. This includes calculating a manufacturing
gap between pairs of adjacent longitudinal or hoop straps that correspond
to the specified desired gap in the inflated configuration of the
restraint layer.