The mathematical model of P.T.E. length is set up by way of studying the motion and dynamics of the yarn in rotor groove.The value of P. 通過(guò)轉杯凝聚槽內須條的運動(dòng)和受力分析，對轉杯紡捻度傳遞長(cháng)度進(jìn)行解析研究，建立了數學(xué)模型。
T.E. length is calculated by using numerical method in the case of cotton and polyester as the raw materials.The factors affecting the P.T.E. length are also discussed. 并分別以棉和滌綸為紡紗原料對捻度傳遞長(cháng)度進(jìn)行了數值計算，分析了影響捻度傳遞長(cháng)度的各種因素。
