| 橡胶弯管挤出成型规律及应用数学模型 |
| Regularity in Extrusion of Curved Rubber Hose and Its Applied Mathematic Model |
| |
| DOI： |
| 中文关键词: 橡胶弯管 挤出 成型 平板模型 弯曲半径 速比 |
| 英文关键词: curved rubber hose extrusion plate model bending radius speed ratio |
| 基金项目: |
|
| 摘要点击次数: 737 |
| 全文下载次数: 553 |
| 中文摘要: |
| 对橡胶弯管挤出成型规律进行了实验和理论研究并得出了应用数学模型。把偏心圆环柱域当作平行平板处理能够反映出弯管的弯曲半径与机头几何参数和物料流变参数间的应变趋势，经实验修正后的修正公式可以正确地描述它们之间的定量关系，并可作为进行计算机控制的数学模型；对于幂律流体在偏心圆环柱域中心轴向层流流动，选用双圆柱坐标进行了有限差分法数值计算，得到的弯曲半径数值计算值与实验值基本吻合。 |
| 英文摘要: |
| An experimental and theoretical study was made on the regularity in extrusion of curved rubber hose and an applied mathematic model was established.The relationship among the bending radius of curved rubber hose，the geometrical parameters of extruder head and the rheological parameters of compound could be reflected by regarding the eccentric annulus as parallel plates and their quantitive relationship could be correctly described by a formula modified through the experiment；a mathematic model for the computered-control in extrusion was established based on the said formula；a bicylindrical coordinate was used to calculate the axial laminar flow of power-law fluid in the eccentric annulus with finite difference method，and the calculated bending radius was basically fit to the measured one in the experiment. |
|
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
