钢铝绞制大截面导线的特性之泊松比计算

The Calculation of Poisson's Ratios of Steel-cored Aluminium Stranding Wire with Large Cross Section

针对钢铝绞制导线既离散、又复合的特点,旨在唯物地、有效地研究、确定大截面绞制导线的刚度。而这一目标——导线刚度的实现,又必不可免地依赖于导线的泊松比。因此本文从股线分析入手,详尽地分析了股线的应变和导线的轴向应变及其关系,由此而进一步给出了导线的泊松比计算公式,为导线的刚度计算开辟了必要的桥纽通途,对于复合材料的机械特性之完备具有足够的学术价值,而对导线计算与设计乃至于架线施工颇具实用价值和指导意义。

The thesis studies to identify the stiffness of the steel-cored AL stranding wire with large cross sec- tion according to both discreteness and composition characteristic of the steel-cored AL stranding wire materia- listically and effectively. Targeting the stiffness of the wire which relies on the Poisson＇ S ratios of the wire is unavoidable. The thesis starts from analyzing the plied yarn and analyses the strain of them, the axial strain of the wire and the relation between them exhaustively which obtains the Poisson＇ s ratios design formulas of the wire uheriorly and breaks a new path for calculating the strain of the wire. The design formulas posses sufficient intellectual merit to perfect the mechanical characteristic of the composite material, engineering value and sig- nality to calculating and designing wire, and even installation of overhead conductor and ground wire.