影响管片拼装机起步工作特性的敏感结构参数分析及优化

发布时间：2018-01-18 11:13

本文关键词：影响管片拼装机起步工作特性的敏感结构参数分析及优化　出处：《机械设计与研究》2017年03期 　论文类型：期刊论文

【摘要】：管片拼装机自身刚度以及转动惯量大,同时拼装过程是单侧受载,导致其在回转起步时存在冲击现象,严重影响了其控制精度和使用寿命。针对这一问题,对影响管片拼装机回转起步工作特性的敏感结构参数进行了分析和优化。根据流体动力学理论建立了数学模型、利用AMESim仿真模型模拟了其起步工况,确定了影响其起步工作特性的敏感结构参数;并且应用多因素正交试验法优化出了最佳参数组合;最后在合作单位进行了实车试验。仿真和试验结果表明:优化后的管片拼装机在回转起步阶段冲击量较优化前减小了约40%,可有效的改善其动态性能,能很好地抑制起步冲击现象。
[Abstract]:The stiffness and moment of inertia of segment assembler are large, and the process of assembly is unilateral load, which leads to the phenomenon of impact in the starting of rotation, which seriously affects its control precision and service life. This paper analyzes and optimizes the sensitive structural parameters which affect the starting characteristics of the segment assembler. According to the hydrodynamic theory, the mathematical model is established and the starting condition is simulated by using the AMESim simulation model. The sensitive structural parameters which affect its starting characteristics are determined. The optimum parameter combination is optimized by using the multi-factor orthogonal test method. Finally, the actual vehicle test was carried out in the cooperative unit. The simulation and test results show that the impact volume of the optimized segment assembly machine is reduced by about 40 percent in the initial stage of rotation, which can effectively improve its dynamic performance. Can well suppress the initial shock phenomenon.
【作者单位】：湘潭大学机械工程学院;中国铁建重工集团掘进机研究院;
【基金】：湖南省科技重大专项资助项目(2014FJ1002) 国家自然科学基金资助项目(51475402) 湖南省教育厅科学研究重点项目(15A185)
【分类号】：U455.39
【正文快照】： 盾构机是集机、电、液、传感、信息等多项技术为一体的高科技隧道施工装备,随着我国城市轨道交通事业的蓬勃发展,盾构将迎来更为广阔的发展前景[1]。管片拼装机是盾构机的重要组成部分,当盾构推进一环后,其将预制的混凝土管片依照一定的顺序安装到刚开挖好的隧道表面以形成衬

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