Universal joint balancing machine: coupling drive is the use of universal joints will balance the spindle and the rotor connected.
万向节平衡机：联轴器拖动是利用万向节将平衡机主轴与转子相联接。
2
Finally, by analyzing the variation of coupling field, the coupling resonant characteristic through lapped joint is obtained.
最后通过分析耦合场的变化曲线，总结了耦合共振规律。
3
Based on the mapping infinite element principle, a coupling model of finite element and mapping infinite element is presented to solve materially nonlinear problem of joint in the roadbed.