新型圆柱杆链柔性纤维模型的建模方法

Establishment of A New Cylindrical Chain Flexible Fiber Model

关键词:  纸浆悬浮液  纤维模型  仿真  流体  运动

Key Words:fiber pulp suspension  fiber model  simulation  fluid  motion

摘要:在造纸行业中，柔性纤维模型的建立是应用计算机仿真技术对纸浆流送设备进行结构设计及优化的关键基础。笔者根据纤维悬浮液的流变特性，建立新型圆柱杆链柔性纤维模型，根据纤维粒子在悬浮液流体中的受力情况，建立了水动力、接触力、约束力和复原力矩对纤维粒子作用的数学模型，进一步与流体中的运动方程相结合，得到了新型圆柱杆链柔性纤维的数学模型，为纸浆纤维悬浮液的数值仿真模拟奠定了理论基础。

Abstract:The establishment of the model of flexible fiber is the key in the application of computer simulation technology for the design and optimization of pulp approach equipment structure in the paper industry. The author established a new cylindrical chain flexible fiber would according to the rheological properties of fiber suspension. Based on force analysis of the the fiber particles in the suspension fluid, establishing the math model dealing with the impact of the hydrodynamic force, contact force, constraint force and restoring torque on the fiber particles, further combining with the motion equations of fluid finally the cylindrical chain flexible fibers novel mathematical model was established which laid the theoretical foundation for the numerical simulation of pulp fiber suspension.