抄録
Wrinkling configurations in a membrane due to wrapping fold are discussed for the effects of winding tension on interval and length through wrapping fold experiments and theoretical analysis in order to reduce wrinkles. The experiments are performed by wrapping a z-folded membrane on a cylinder with winding tension. In the experimental results, interval of wrinkle was not affected by winding tension. Length of wrinkle appeared in two modes. The shorter one was not affected by winding tension. The longer one was reduced by higher winding tension. In order to estimate the effect of winding tension on the reduction of the longer length of wrinkle, theoretical analysis was performed in consideration of the following two assumptions. One is the increase of bending moment from the unwrapped section to the wrapped section. The other is the interference between the wrinkle and the overlapped membrane. The estimated value of length of wrinkle corresponded with the experimental value of the longer one. Both results of the experiment and the theoretical analysis show wrinkles are reduced by higher winding tension.
