对摩擦,表面粗度和材料硬度对螺纹接头的外部负载因子的影响进行实验研究
Van Thuy Tran1, Huu Loc Nguyen2,3
1Faculty of Engineering-Technology, Pham Van Dong University, Quang Ngai Province, Vietnam.
PloS one
|January 6, 2026
概括
这项研究研究了摩擦,粗性和硬度如何影响螺栓关节性能. 发现最佳条件可以提高关节的可靠性和设计.
科学领域:
- 机械工程 机械工程
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
背景情况:
- 螺纹接头,特别是螺栓接头,在机械系统中是必不可少的,因为它们的强度和可重复使用性.
- 外部负载因子 (χ) 对于评估螺栓接头的负载分布和可靠性至关重要.
研究的目的:
- 实验研究摩擦系数,表面粗度和材料硬度对螺栓连接的外部负载因子 (χ) 的影响.
- 根据这些参数开发一个预测模型,以优化螺栓接头设计.
主要方法:
- 利用Box-Wilson实验设计系统地改变摩擦系数,表面粗度和材料硬度.
- 开发了一种二阶回归模型,以量化这些参数与外部负载因子 (χ) 之间的关系.
- 进行了优化分析,以确定目标外部负载因子的理想参数设置.
主要成果:
- 所有研究的参数 - - 摩擦系数,表面粗度和材料硬度 - - 都对外部负载因子 (χ) 有显著影响.
- 材料硬度表现出最实质性的影响,硬度增加导致 χ 的减少.
- 表面粗度与 χ 有非线性关系,而摩擦系数有相当大的影响.
结论:
- 该研究确定了目标外部负载因子 (χ = 0.2501) 的最佳参数:摩擦系数 (μ = 0.1809),表面粗度 (Ra = 3.5181 μm) 和材料硬度 (HB = 216.859).
- 开发的模型实现了高预测准确度 (复合材料的可取性=0.9996),证实了优化螺栓接头的可靠性.
- 研究结果为设计各种工程应用中更可靠的螺栓接头提供了宝贵的见解.
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