TBM插装阀组工作特性研究

发布时间：2018-05-03 18:04

本文选题：基础振动 + 插装阀　；参考：《中南大学》2014年硕士论文

【摘要】：全断面硬岩掘进机(简称TBM)是一种主要应用于硬质地层开挖的大型设备,在铁路隧道、公路隧道及城市地下轨道建设工程中应用十分广泛。插装阀具有流通能力大、动作迅速等特点,在TBM上使用较多。由于TBM工作在强基础振动下,因此研究基础振动下插装阀及阀组的工作特性具有重要意义,研究成果可以为大型工程装备选用插装阀时提供一定的参考。本文的主要内容包括：首先,建立了基础振动下的二通插装阀结构模型及AMESim仿真模型。研究了振动参数对插装阀开启特性的影响,提出了衡量阀芯波动程度的评价参数——阀芯波动比值δ/X0,揭示阀体结构参数对其开启特性的影响规律。其次,建立了基础振动下插装阀阀组仿真模型,研究了振动参数、流道参数及阻尼塞对插装阀组工作特性的影响规律,提出了阀座设计加工的建议。再次,针对插装阀在强振动条件下可能出现性能失效的问题,对基础振动下的插装阀选型及优化方法进行了研究。一种基础振动下选型方法的基本原理是,控制插装阀阀芯偏移量均值不大于5%倍阀芯开启度均值。对于可能出现性能失效的插装阀,提出了正交实验法和简易优化法两种结构参数优化方法。最后,利用电动振动仪来模拟TBM工作时所受的振动,自行设计加工阀座,选用插装阀进行基础振动下插装阀的流量特性试验,实验结果验证了理论分析的正确性。图44幅,表14个,参考文献61篇
[Abstract]:The full section hard rock boring machine (TBM) is a large equipment which is mainly used in the excavation of hard strata. It is widely used in railway tunnel, highway tunnel and urban underground railway construction project. The cartridge valve has the characteristics of large circulation ability, rapid movement and so on, which makes more use of the TBM. Because TBM works under the strong foundation vibration, it is studied. It is of great significance to study the working characteristics of the cartridge valve and the valve group under the foundation vibration. The research results can provide some reference for the selection of the cartridge valve for large engineering equipment. The main contents of this paper include:
First, the structure model and AMESim simulation model of the two pass cartridge valve under the foundation vibration are established. The influence of the vibration parameters on the opening characteristics of the cartridge valve is studied. The evaluation parameter of the fluctuation of the valve core, the ratio of the valve core fluctuation, is proposed, which reveals the influence of the structural parameters of the valve body on the opening characteristics.
Secondly, the simulation model of the valve group under the foundation vibration is established, and the influence of the vibration parameters, the channel parameters and the damping plug on the working characteristics of the cartridge valve group is studied, and the suggestions for the design and processing of the valve seat are put forward.
Thirdly, in view of the possibility of performance failure of the cartridge valve under strong vibration conditions, the selection and optimization method of the cartridge valve under the foundation vibration is studied. The basic principle of the selection method under the foundation vibration is that the mean of controlling the offset of the cartridge valve core is not more than 5% times the mean value of the valve core opening. Two optimization methods of structural parameters are put forward for the cartridge valves.
At last, the vibration of TBM is simulated by the electric vibrator, the valve seat is designed and the valve seat is designed by itself, and the flow characteristic test of the underlying vibration cartridge valve is tested with the cartridge valve. The experimental results verify the correctness of the theoretical analysis. Figure 44, table 14, and 61 references

【学位授予单位】：中南大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U455.3

【参考文献】