The rotary experiment design was adopt to obtain the relation between two jet orifices position and yarn strength.On the base of mathematical model,the parameters were optimized.

• 利用通用旋转组合设计的方法研究了喷气纺纱机上两个喷嘴喷射孔的位置与喷气纱强力的关系,建立了优化数学模型,并给出了优化后的参数。