Research Article
Reliability Test Rig of the Motorized Spindle and Improvements on Its Ability for High-Speed and Long-Term Tests
Table 1
Main parameters of the EHSLS.
| Speed (r/min) | Frequency (Hz) | Fr (N) | Fa (N) | Base value | Amplitude | Base value | Amplitude |
| 595 | 10 | −1346.5 | 407.4 | −358.1 | 194.7 | −673.3 | 219.7 | −179.1 | −108.8 | 646.4 | 219.7 | 237.5 | 194.7 | 1292.7 | 473.7 | 475.0 | 225.0 |
| 950 | 16 | −820.7 | 235.1 | −279.2 | 44.1 | −410.4 | 131.5 | −139.6 | 123.0 | 485.3 | 131.5 | 163.9 | 146.0 | 970.6 | 243.9 | 329.8 | 246.0 |
| 1600 | 27 | −522.6 | 201.6 | −128.3 | −27.8 | −261.3 | 44.5 | −128.3 | 45.2 | 229.6 | 98.4 | −64.2 | −27.8 | 459.2 | 174.7 | 118.0 | 45.2 |
| 1900 | 32 | −335.5 | 124.9 | −136.3 | 36.9 | −167.8 | 71.2 | −136.3 | 73.5 | 170.5 | 71.2 | 99.5 | 36.9 | 341.0 | 143.8 | 199.0 | 86.8 |
| 3000 | 50 | −232.5 | 89.1 | −48.2 | 10.5 | −116.3 | 26.9 | 47.1 | 10.5 | 141.2 | 52.8 | 47.1 | 32.2 | 282.3 | 103.0 | 94.0 | 75.8 |
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