A model was developed to analyze the inter-filament mechanical function,and the creep of the cross section PTT and PET filaments was expatiated by four element models.

• 对长丝之间的力学作用进行了模型建立和分析,利用四元件模型对十字形PTT和PET长丝的蠕变行为分别进行力学阐述,得出了长丝的力学参数:弹性模量、黏滞系数。