FILAMENT WINDING APPARATUS, METHOD FOR DESIGNING FILAMENT WINDING, AND METHOD FOR MANUFACTURING TANK

摘要

To suppress an occurrence of a portion not covered by a fiber bundle on a surface of a liner, in manufacturing of a tank.SOLUTION: A filament winding apparatus has N guide members which are arranged around a long liner about a central axis in a longitudinal direction of the liner and each of which supplies one bundle of fibers (N is an integer of 2 or more), and a drive unit that forms a reinforcing layer by winding N fiber bundles supplied from the N guide members helically around the liner at a same winding angle by repeating W winding (W is an integer of 2 or more) that makes N guide members reciprocate once from a winding start position parallel to the central axis of the liner. A number of windings W is a number of windings when numerical value group of value n indicating each first position of the fiber bundle when the N fiber bundle is wound around the liner with the number of windings W, matches out of order with a numerical value group of values m indicating each second position set so that N bundles of fibers are arranged uniformly in the liner.SELECTED DRAWING: Figure 5