Shock and Vibration / 2018 / Article / Tab 1

Research Article

Experimental Validation of Numerical Model for Bi-Tilt-Isolator

Table 1

Root mean square error of different initial displacement and lubrication conditions with optimal parameters of friction force.

Initial displacementWD40 sprayed, mWD40 whipped, mW/O lubrication, m

0.05 m
(0.048~0.059 m)
0.000280.000210.00029
0.000410.000330.00079
0.001560.002250.00453
0.47%0.44%0.54%

0.10 mm
(0.097~0.107 m)
0.000550.000460.00034
0.000560.000820.00094
0.001820.004380.00649
0.51%0.47%0.32%

0.15 mm
(0.152~0.155 m)
0.002060.000570.00061
0.002060.000570.00061
0.002290.008290.00874
1.35%0.37%0.40%

There is slight difference for actual initial displacement in the process of test; the optimization solution with cubic polynomial of friction; the error of the optimum parameters for using the maximum initial displacement simulation; simulation errors with constant friction; the ratio of error of the optimum solutions and initial displacement.