Through vibration frequency spectrum analysis of no-tillage seeder in field, its vibration characteristics were obtained.
通过对播种机的田间振动频谱分析,得到了它的的振动特征。
The effectiveness and the practicality of crack identification through vibration measurements are verified through experimental study.
实验结果验证了通过振动测试诊断裂纹参数的有效性和实用性。
The damping expression of structural vibration for rock mass is given by dimensional analysis, and the damping ratio can be obtained through vibration test.
通过量纲分析的方法给出了岩体结构振动的阻尼表达式,指出可以通过岩体的振动实验确定阻尼比,并进而给出特征时间。
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