Table 5: The range of each nondimensional parameter.

Fault type

Normal1.215~1.2270.917~0.9311.213~1.2321.135~1.1862.205~2.2973.463~3.8091.467~1.727
Grinding teeth1.242~1.2571.320~1.3411.923~1.9621.657~1.6762.776~2.8726.326~6.8290.974~1.182
Inside and outside ring grinding1.257~1.2871.223~1.3201.849~1.9231.562~1.6572.515~2.7764.906~6.2895.062~5.542
Concurrent fault1.287~1.3571.007~1.2201.465~1.8491.252~1.5622.045~2.2053.058~3.4558.162~8.504