Swinging Properties of Flared Skirts (Part 2)

―On the Rotational Vibration―

Abstract

  An investigation has been made of measuring the swinging properties of flared skirts using a trially manufactred an apparatus for swinging a skirt.

  Rotational vibration at the angle of 60° were given on a dammy weared a skirt. The motion hemline of 12 types of flared skirt were catched by the camera and X-Y tracker, and drawed the locus by the X-Y recorder, and were compared with the swinging properties on the horizontal vibration at the previous paper.

  The results obtained are as follows :

  1. The locus of 60° rotational vibration are showed like a bow shape, and are larger than the horizontal vibration.

  2. The parts of convex at the skirt of short size of hemline are small swinged as same as the horizontal vibration.

  3. Swinging length of the rotational vibration are largely at the parts of convex at the skirt of short size of hemline, and that of the horizontal vibration are largely at the part of concave of one.

  4. The 60° rotational vibration is more suitable than the horizontal vibration for measuring the swinging properties of skirts.