This paper,combining with the on-site actual example briefs the low speed balancing and maintenance-fabrication work of turbo-generator finished on site by using the transportable low speed dynamic balancing machine.

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

A type of measuring system of intelligent dynamic balancing machine is introduced, which is applicable on both singleplane and twoplane balancing.

Study on calibration method and system error compensation of balancing machines;

The application of virtual instrument based on intelligent virtual control in mn-1 dynamic balance machinery fault diagnosis;

The paper introduces the mechanics principle and the mechanical structure design principle of dynamic balance machine,the balance machine vibrating equation and resilience system of rigid is also discussed.

A newly-designed digital bandpass filter for the dynamic balance machine is presented by using frequency sampling design method.