中南大学学报（自然科学版）2017，Vol.48Issue(3)：650-657,8.DOI:10.11817/j.issn.1672-7207.2017.03.013
TBM刀盘系统多自由度耦合振动响应灵敏度研究
Sensitivity of vibration response about TBM cutterhead system with multi-degree-of-freedom coupling
摘要
Abstract
The vibration characteristics of TBM cutterhead under the impact loads were studied. The expression of dynamic response sensitivity was deduced by the direct derivative method, and a method of sensitivity analysis which is suitable for forced vibration response of TBM cutterhead was established, based on the coupling dynamics model of TBM cutterhead system. Taking a hard rock TBM cutterhead system of a water tunnel project in northwest Liaoning Province as an application instance, the vibration responses and sensitivities of cutterhead were calculated by a collaborative numerical method, and the influences of cutterhead mass distribution on responses were analyzed. The results show that the vibration response sensibility to the mass of cutterhead piece is maximum, and the none of value in each direction is equal to 0, which shows that the mass parameter variation can affect the cutterhead vibrations of each direction. Moreover, the support stiffness of cutterhead only affects the associated vibration, and the axial vibration response sensibility to the axial support stiffness is about 2 times of that in overturning direction. Furthermore, the cutterhead vibration is minimum when the mass fraction of cutterhead piece is controlled in the range of 13%-14%.关键词
TBM刀盘系统/多自由度耦合/直接导数法/响应灵敏度Key words
TBM cutterhead system/multi-degree-of-freedom coupling/direct derivative method/response sensitivity分类
机械制造引用本文复制引用
凌静秀,孙伟,霍军周,邓立营..TBM刀盘系统多自由度耦合振动响应灵敏度研究[J].中南大学学报（自然科学版）,2017,48(3):650-657,8.基金项目
国家自然科学基金资助项目(51375001) （51375001）
国家重点基础研究发展计划(973计划)项目(2013CB035402) (Project(51375001) supported by the National Natural Science Foundation of China （973计划）
Project(2013CB035402) supported by National Key Basic Research Development Program (973 Program) of China) （2013CB035402）
