重庆理工大学学报（自然科学）

重庆理工大学学报（自然科学） ›› 2023, Vol. 37 ›› Issue (2): 158-165.doi: 10.3969/j.issn.1674-8425(z).2023.02.018

• 机械·材料 • 上一篇    下一篇

EPB盾构螺旋输送机的参数多目标优化

陈怀远, 陈江义, 秦东晨   

  1. 郑州大学 机械与动力工程学院，郑州 ４５０００
  • 出版日期:2023-03-21 发布日期:2023-03-21
  • 作者简介:陈怀远，男，硕士研究生，主要从事数字化设计理论与运用研究，Ｅｍａｉｌ：１４３３７９７８８５＠ｑｑ．ｃｏｍ；陈江义，男，博士， 教授，主要从事数字化设计、机构学研究等，Ｅｍａｉｌ：ｃｊｙ１９７４＠ｚｚｕ．ｅｄｕ．ｃｎ。

Multi-objective parameter optimization of EPB shield screw conveyors

  • Online:2023-03-21 Published:2023-03-21

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摘要： 为了提高 ＥＰＢ盾构螺旋输送机的输送效率，减小输送机螺旋体的磨损并降低运输 过程中的功率损耗，结合离散元软件 ＥＤＥＭ、ＮＳＧＡⅡ优化算法和熵权 ＴＯＰＳＩＳ法，提出一种盾构 用螺旋输送机结构参数优化方法。通过离散元软件 ＥＤＥＭ按照设计好的正交试验进行仿真，得 到输送机的质量流率、螺旋体平均磨损量和运行功率性能指标，并对仿真的可靠性进行验证。 利用 Ｍａｔｌａｂ软件将仿真得出数据进行拟合，建立多个结构参数间的性能指标函数。采用 ＮＳＧＡ Ⅱ算法对螺旋输送机参数进行优化，得到 Ｐａｒｅｔｏ前沿解集，并由熵权 ＴＯＰＳＩＳ法确定最优解。结 果表明：当螺旋输送机安装倾角为 ２４．６９°，螺距为 ６１３．２５ｍｍ，螺旋内径为 ６９６．３４ｍｍ，螺旋轴 径为 ２１１．８８ｍｍ时，输送机整体性能最好，其他条件相同的情况下，质量流率提高了 １０．５６％， 螺旋轴磨损量减小了 ８．６４％，功率损耗降低了 ６．４１％。研究结果对 ＥＰＢ螺旋输送机的设计改 进有一定的参考价值。

关键词: ＥＰＢ盾构螺旋输送机, 离散元, ＮＳＧＡ－Ⅱ算法, 熵权 ＴＯＰＳＩＳ法, 参数优化

Abstract: In order to improve transport efficiency, reduce the wear of EPB shield screw conveyors, and reduce power loss in the transport process, this paper proposes an optimization method for structure parameters of shield screw conveyors by combining discrete element software EDEM, NSGA-Ⅱ optimization algorithm and entropy weight TOPSIS method. Firstly, the discrete element software EDEM is simulated to obtain the performance indexes of mass flow rate, average spiral wear and operation power of a conveyor according to the designed orthogonal test, and the reliability of the simulation is verified. Secondly, Matlab software is used to fit the simulation data, and the performance index function between multiple structural parameters is established. Finally, NSGA-Ⅱ algorithm is used to optimize screw conveyor parameters, the Pareto frontier solution set is obtained, and the optimal solution is determined through entropy weight TOPSIS method. The results show that the overall performance of the conveyor is the best when the screw conveyor installation inclination angle is 24.69°, the pitch of the screw is 613.25 mm, the inner diameter of the screw is 696.34 mm, and the screw shaft diameter is 211.88 mm. Other conditions being the same, the mass flow rate increases by 10.56%, the screw shaft wear decreases by 8.64%, and the power loss reduces by 6.41%. The research results of this paper have a certain reference value for the design improvement of EPB screw conveyors.

中图分类号: 

  • TH224