Ti17模拟叶片在空气中的阻尼试验
Analysis of damp trial result of Ti17 simulation blade in air
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摘要: 通过Ti17平板模拟叶片在空气中测阻尼试验研究,用自由振动衰减法测取到各阶振型衰减系数,得出其各阶振型阻尼比,推导出比例阻尼系数,为叶片响应计算时的阻尼系数取值提供了参考.研究还发现振型阻尼比与材料硬度、叶片固有频率及振型密切相关,并给出了定性分析.Abstract: Through simulation blade's damp trial in air,various order vibration model attenuation coefficients have been achieved by the method of free vibration attenuation,then various order vibration model damp ratios were obtained,and the ratio damp coefficients were deduced.These could offer reference for analysis of the relationship between the blade's damp and vibration model in nature and deciding the damp coefficient when calculating the response.
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Key words:
- damp /
- trial /
- simulation blade /
- vibration mode damp ratio /
- damp coefficient
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