多芯线束压接拓扑与性能的分形几何关系

为建立微小型多芯线束压力连接器的芯线拓扑分布与其连接性能间的连接可靠性评价,以一种广泛使用的微型多芯线束连接器为研究对象,通过大量实验发现,多芯线束压接变形后的拓扑轮廓具有典型的分形特征;芯线变形截面的分形维数是其压接性能的一种度量,随着芯数的增加,芯线内部各素线的分布趋于稳定,线束的拓扑分布对其压接性能的影响逐渐减弱;即多芯线束压力连接后芯线的拓扑分布与其连接性能存在分形几何关系。此种分形几何关系的建立对基于实验和接触有限元解析结果的多芯线束压力连接器的性能评价具有较强的工程参考价值。

Research on Fractal Relationship Between Topology and Performance of Press-in Connection with Multicore Strands

Aiming to build the fractal relation between the topology and performance of the minitype electronic connector with multicore strands press-in connection,this study analyzes plenty of experimental data and finds that the topology of the multicore strand after pressure deformation takes on the fractal characteristic;in addi- tion the dimension of fractal reflects the connecting performance;and with the cores increase,the topology distributing of strands becomes stable and the effect of it on the performance decreases.The work has proved the fractal relation exists in the multicore strand after pressure deformation,and provides a method to the study of the standardization and optimization for the electronic connector with multicore strands press-in con- nection.