| 摘要 |
PROBLEM TO BE SOLVED: To allow a side airbag to be designed so that only a sewn part for breaking surface skins covering a side pad is broken and the side pad corresponding to parts other than the sewn part for breaking is not broken.SOLUTION: The method for designing a side airbag of a vehicle performs steps of: deriving loads acting on a front surface 2a and a left-side surface 2b of a side airbag 2 modeled after a quadratic prism; deriving a displacement amount of a side pad 5b at the time when the derived loads are set as loads on the side pad 5b; deriving displacement amounts H1 and H2 at the time when a sewn part 8 for breaking surface skins 5d is broken; determining, from characteristics of displacement amounts of the side pad 5b, loads on the side pad 5b required for breaking the surface skins 5d; and suppressing the determined loads from exceeding compression resistance toward a displacement direction X due to compression resistance and tensile resistance toward a displacement direction Y due to tensile resistance of a shortest site T of the side pad 5b so as to prevent occurrence of inner explosion. |
