摘要
异形盾构是盾构技术发展的一个主要方向,研制合理的切削机构是开发异形盾构的核心技术。本文选择混合驱动变异五杆椭圆轨迹机构作为椭圆断面盾构的切削机构进行理论和技术研究。采用图解解析法研究了变异五杆机构切削椭圆轨迹时多种情况下的变化规律,并在此基础上研究了可控电机的控制规律;为了研究切削机构初始位置对切削椭圆轨迹的影响,开发了异形盾构变异五杆切削机构分析与仿真软件,经过理论分析和计算机仿真形成切削椭圆轨迹的控制理论和算法,仿真结果验证了控制理论和算法的正确性,充分表明变异五杆机构能够提供切削轨迹的柔性。
In order to meet the requirements of different tunnel constructions,special section（such as ellipse section） shield can be adopted.In order to realize this object,it is very important to research and develop new special section shields.The flexible section shield is a trend of the shield technology.Developing a sound cutting mechanism is the core technology to develop the flexible section shield.In this paper,hybrid driven special five bar mechanism is first applied to cutting mechanism of ellipse section shield machine to meet the requirements of special section tunnel in underground space.In order to develop a sound cutting mechanism of the ellipse section shield machine,we used the special five-bar mechanism to cut variable-ellipse-trajectory.Illustratable parsing method is first applied to analyze the diversification orderliness.Based on the diversification orderliness,the control orderliness of the real time adjustable motor is discussed.For the sake of exploring the orderliness influenced by the initialization station of the cutting mechanism,the special five-bar cutting mechanism analysis and simulation software is developed.After the theoretic analysis and the computer emulation,the control theory and algorithm for cutting the variable-ellipse-trajectory is formed.The result of the computer simulation not only shows the veracity of the results but also shows that the special five-bar cutting mechanism can provide the flexible cutting trajectory.
出处
《地下空间与工程学报》
CSCD
北大核心
2013年第1期31-36,65,共7页
Chinese Journal of Underground Space and Engineering
基金
国家863计划子项目(2002AA420020)
关键词
椭圆断面盾构
变异五杆切削机构
初始位置
椭圆轨迹
ellipse section shield
special five-bar cutting mechanisms
initialization station
ellipse trajectory
