基于Ansys对起重机械受损部件结构修复

Ansys-based structural repair of damaged components of hoisting machinery

起重机械作为一种高风险性设备,其结构的安全性和可靠性具有重要意义。在其使用运行期间,易因各种原因造成其部件形成缺陷。针对更换设备受损部件周期较长的问题,提出采用补强技术来修复高风险性设备的受损部件。由于传统的理论计算公式并不能很好地进行具体受损部件的强度计算,故以有限元方法模拟不同修复模型后受损部件的应力分布情况。结果表明:不同修复模型下受损部件的应力分布情况差异较大,采用合理的修复模型可使结构满足强度要求。在理论分析的基础上进行试验研究,结果证明了修复模型的有效性。研究结果可为设备受损部件在服役寿命预估等方面提供基础信息。

Hoisting machinery is a kind of high-risk equipment, and its structural safety and reliability are of great significance. During its use, its components are vulnerable to defects for various reasons. Considering it takes a long time to replace the damaged components, reinforcing technology is proposed to repair the damaged components of high-risk equipment. Because traditional theoretical calculation formula is basically useless in calculating the stzength of the damaged components, finite element method is used to simulate the stress distribution of the damaged components with different repair models. The results show that the stress distribution of the damaged components with different repair models is quite different, and a reasonable repair model can make the structure meet the strength requirements. Tests are conducted based on theoretical analysis, which prove that the repair models are very useful. The study results can provide basic information on estimating the service life of the damaged components of equipment.