The veracity of method to compute curvilinear trajectories with wide electronics beam is checked by concentric sphere system, and given the evaluation of difference between curvilinear trajectories of ambipolar concentric sphere system and real trajectories of perfect concentric sphere system, which offer the base to the computation of trajectories and aberrations with second order approximation.

Auto-recognition of shaft orbits using affine moment invariants;

Automatic identification of shaft orbit of hydraulic power sets;

Research of Fault Diagnosis of Hydro-power Set Based on Coupled Flexural and Torsional Vibrations and Shaft Orbits Recognition;

Application of a new moment invariant to identification of axis orbit in hydro-generator unit;

Automatic identification of axis orbit shape of generator rotor;

Automatic identification of axis orbit using RBF network and moment invariants;

With a certain type of diesel engines as the example,this paper calculated the pressure of film with FEM according to the orbit of shaft center,and analyzed the pressure change of film along with the revolving of crankshaft and the relative location of connecting rod.

Study on mechanical rotor axis locus based on virtual instrument;

The variation of rotor’s axis locus and its axis location is the essential evidence to determine the rotor’s running state and fault sign.

As an example,cylinder′s axis locus and friction work of a XG 0.