Abstract: To satisfy the requirements of fast producing , low cost manufacture and large thickness preforming
in the field of non2resin winding cylinder composite , the equation of retracing cosine curve was deduced based
on the section principle. Combined with the traditional textile technique theory , characteristic parameters′
calculation formulae of end2section were deduced under the retracing cosine curve model . Finally , on the basis
of analysis of the retracing cosine curve , in non2resin winding cylinder preforming technique , signification of
high speed machining under the retracing cosine curve model was illuminated and testified by the way of
numerical value simulation. As a conclusion , cosine curve should be used as retracing curve under the
condition of high2speed winding and relatively common cylinder thickness.