Through analysis and solves the vibration problems of two uprating units, the process of multi plane field dynamic balancing are studied.

对两台改造机组的异常振动故障进行了分析和现场处理，探讨了运用多平面综合平衡法解决该类振动问题的途径。

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A vertical hard bearing two-plane dynamic balancing machine, based on gas bearing technique, was designed, and corresponding mathematic model was established.

基于气浮轴承支承技术，设计了硬支承立式双面动平衡机，建立了相应的数学模型。

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