Bibliographic Details
| Title: |
基于Archard模型的塔机起重臂下弦杆磨损特性研究. (Chinese) |
| Alternate Title: |
Research on Wear Characteristics of the Lower Chord of the Tower Crane Jib Based on Archard Model. (English) |
| Authors: |
王仲源, 谢贻东, 韩晓宇, 穆合塔尔, 李蛟 |
| Source: |
Lubrication Engineering (0254-0150); Jul2026, Vol. 51 Issue 7, p168-178, 11p |
| Subject Terms: |
Mechanical wear, Tower cranes, Subroutines (Computer programs), Material erosion, Finite element method |
| Abstract (English): |
The jib of a tower crane serves as a critical load-bearing structural component, its surface degradation condition directly governs the equipment's service life and operational safety. To investigate the wear characteristics between the lower chord of the jib and the wheels of the jib trolley, field data acquisition and wear analysis were conducted on an F0/23B-type tower crane. By developing a UMESHMOTION subroutine in Fortran, and combining with the Arbitrary Lagrangian-Eulerian（ALE） adaptive meshing technology, a wear model was established in Abaqus. Based on the classical Archard wear theory, the wear model proposed was used to simulate and analyze the wear patterns on the jib surface under various working conditions and cycle counts. Additionally, material properties and operational modes were altered to explore the key factors influencing the surface damage of the tower crane jib. The finite element simulation results are in good agreement with the results of actual measurements and calculations, thereby confirming the reliability of the developed wear model. The results show that maximum wear depth consistently occurs near the 30 m span from the jib root, with lighter wear at both ends. The influence of different trolley wheel materials on wear of the jib surface is significant. When using newly developed nylon wheels, wear on the jib surface is reduced by approximately 25% compared to conventional cast-iron wheels under low-cycle conditions. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
塔机起重臂作为塔机承载受力的关键结构, 其表面损伤状况直接影响设备的服役寿命与安全性。为探索起 重臂下弦杆表面与变幅小车车轮之间的磨损特性, 对某F0/23B型塔机开展现场数据采集和磨损分析。采用Abaqus仿真 软件, 通过Fortran语言编写二次开发的UMESHMOTION子程序, 结合Arbitrary Lagrangian-Eulerian（ALE） 网格自适应 技术, 建立变幅小车滚轮与起重臂轨道表面的磨损模型。基于Archard磨损理论, 采用提出的磨损模型模拟仿真不同实 际工况和循环次数下起重臂表面的损伤规律, 同时通过改变材料性能和工作方式, 探究塔机起重臂下弦杆表面损伤的 关键影响因素。有限元仿真结果与实际测量和计算结果吻合良好, 验证仿真所建立的磨损模型的可靠性。研究结果表 明, 起重臂表面磨损最严重的位置位于臂长30 m左右处, 而两端磨损较轻;不同小车车轮材料对起重臂表面磨损的影 响显著, 采用新式尼龙材质的车轮时, 在低循环周期内与老式铸铁材料车轮相比, 对起重臂表面的磨损降低约25%. [ABSTRACT FROM AUTHOR] |
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| Database: |
Complementary Index |