随钻伽马测井仪减振器减振性能研究  

Damping Performance Research of MWD Gamma Logging Instrument Vibration

作　　者：马朝选[1] 林坤[1] 侯永伟[1] 王洁冰[1] 亢楠楠[1] 周向明[1] 

机构地区：[1]中国船舶重工集团公司第七一八研究所,河北邯郸056027

出　　处：《舰船防化》2016年第1期39-44,共6页

摘　　要：随钻伽马测井仪中减振器减振性能的优劣直接影响着仪器测井性能、稳定性以及寿命。本文通过建立有限元模型，进行模态分析得到减振器的固有频率，通过非线性分析得到减振器的等效弹簧刚度；进一步将等效弹簧刚度导入ADAMS中建立虚拟样机，分析得到减振器对于0～28g0～200Hz连续载荷以及0～53g5ms的冲击载荷具有很好的减振效果。本文中研究分析方法为减振器设计提供方法参考。The damping performance of the MWD gamma logging instrument shock absorber will directly affect the performance, stability and lifetime of the well logging instrument. In this paper, the finite element model is established, and the modal analysis is performed to get the natural frequency of the shock absorber The equivalent spring stiffness of the damper is obtained by nonlinear analysis. Further, the equivalent spring stiffness is imported into ADAMS to establish a virtual prototype analysis to obtain the shock absorber for continuous load of 0-28g and 0-200Hz and shock load of 0-53g, and 5ms with good damping effect. The analysis method in this paper can provide reference for the design of shock absorber.

关 键 词：随钻伽马测井仪 减振器 减振性能 

分 类 号：TH138[机械工程—机械制造及自动化]