Fatigue Behaviour of Dragline Tubular Structures

拉斗铲管状结构的疲劳行为

• 批准号: LP0349125
• 负责人: Prof Xiao-Ling Zhao
• 金额: $ 22.82万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-12-10 至 2008-02-28
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0349125
• 关键词: Fatigue; Behaviour; Dragline; Tubular; Structures

Fatigue failure is a major concern for dragline tubular structures. Several catastrophic collapses of such structure occurred. The fatigue behaviour of such large tubular structures is unknown. Fatigue cracks were observed in many existing draglines. The latest international design codes are inadequate to address this issue. The project will develop reliable methodologies for design, inspection, strengthening and assessment of such structures. The outcome will be reduced manufacturing and operational costs and a reduced catastrophic failure risk. This will increase the international competitiveness of Australian mining industry. Several other industry sectors will be benefited from the technology developed in this project.

疲劳破坏是拖绳管状结构的主要问题。这种结构发生了几次灾难性的坍塌。这种大型管状结构的疲劳性能是未知的。在许多现有的拖缆中观察到疲劳裂纹。最新的国际设计规范不足以解决这个问题。该项目将为这种结构的设计、检查、加强和评估制订可靠的方法。其结果将降低制造和运营成本，并降低灾难性故障风险。这将提高澳大利亚矿业的国际竞争力。其他几个工业部门将受益于本项目开发的技术。