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Shock and Vibration
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2021
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Article
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Tab 2
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Research Article
Analysis and Experimental Investigation of Vibration Characteristics of Rotary Platform of Hydraulic Excavator under Complex Working Conditions
Table 2
Test results of the first four-order natural frequencies of the rotary platform.
Order
Frequency (Hz)
Mode shape
1
10.16
Bending
2
15.31
Torsion
3
16.23
Torsion
4
26.06
Bending