TiNiNb形状记忆合金环强化断路器操作机构应力强度研究

发布时间：2018-01-17 17:30

本文关键词：TiNiNb形状记忆合金环强化断路器操作机构应力强度研究　出处：《高压电器》2017年11期 　论文类型：期刊论文

【摘要】：将TiNiNb形状记忆合金环安装在断路器操作机构上,利用形状记忆合金环的记忆效应和超弹性,起到加强断路器操作机构强度的作用。文中将对TiNiNb形状记忆合金环强化断路器操作机构的应力强度进行研究,笔者首先给出了合金环的初始参数和扩径过程,然后建立简化形状记忆合金环及断路器操作机构杆件的应力强度数学模型,分析在安装过程中形状记忆合金环与短路器操作机构杆件之间紧固力及应力强度,最后通过计算,研究形状记忆合金环与短路器操作机构杆件之间紧固力及应力强度。
[Abstract]:The TiNiNb shape memory alloy ring is installed on the circuit breaker operating mechanism, and the memory effect and hyperelasticity of the shape memory alloy ring are utilized. In this paper, the stress intensity of TiNiNb shape memory alloy ring strengthened circuit breaker operating mechanism is studied. In this paper, the initial parameters and the process of expanding the diameter of the alloy ring are given, and then the mathematical model of the stress intensity of the simplified shape memory alloy ring and the bar of the circuit breaker operating mechanism is established. The fastening force and stress intensity between the shape memory alloy ring and the bar of the operating mechanism of the short-circuit are analyzed in the course of installation. Finally, the calculation is carried out. The fastening force and stress intensity between shape memory alloy ring and short circuit operating mechanism are studied.
【作者单位】：云南电网有限责任公司电力科学研究院;华北电力大学机械工程系;
【基金】：云南电网专项基金资助项目(KY-N14162)~~
【分类号】：TM561
【正文快照】： 0引言断路器是一种控制电气线路通断的电气装置。断路器的性能,直接影响配电线路的稳定及下游电气设备的安全[1-2]。断路器的操作机构是断路器运行最为频繁的部件,并且操作机构动作都是瞬时间动作[3],产生的应力很大,操作机构的杆件的应力集中部位很容易发生断裂。统计资料表

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