| 钢筋混凝土构架式动力基础不良振动检测分析 |
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| 引用本文： | 薛刚,李奉阁.钢筋混凝土构架式动力基础不良振动检测分析[J].灾害学,2010,25(Z1). |
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| 作者姓名： | 薛刚 李奉阁 |
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| 作者单位： | 内蒙古科技大学,建筑与土木工程学院,内蒙古,包头,014010 |
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| 基金项目： | 内蒙古自治区自然科学基金项目(20080404MS0706) |
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| 摘 要： | 为查找某鼓风机基础不良振动的原因,用DASP系统对不同工况的动力机组及基础进行了测试分析,主要分析了互功率谱及相位,加速度谱及特征频率。基础三个方向上各测点的互功率谱峰值所对应的相位差不为0°或180°,风机基础的基频为1.12Hz,远小于设备的工作频率,不存在共振现象。动力机组的特征频谱显示低速轴的工频和2倍频都较大,说明加速机转轴存在故障。在检测分析结果基础上,并提出了减振对策。
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| 关 键 词： | 构架 动力基础 振动 检测 |
Monitoring and Analysis of RC Frame Dynamic Machine Foundations |
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| Xue Gang,Li Fengge.Monitoring and Analysis of RC Frame Dynamic Machine Foundations[J].Journal of Catastrophology,2010,25(Z1). |
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| Authors: | Xue Gang Li Fengge |
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| Institution: | Xue Gang and Li Fengge(Department of Architecture and Civil Engineering,Inner Mongolia University ofScience and Technology,Baotou 014010,China) |
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| Abstract: | In order to find the reason to cause blower foundation harmful vibration,monitoring and analysis are done to dynamic machine groups under different circumstances by DASP systems.Such parameters are mainly studied as Cross Power Spectrum Phase,acceleration spectrum and characteristic frequency.On the three dimension of foundations,The phase Difference between Cross Power Spectrum peaks are not 0 or 180 degree,and the base frequency of blower foundation is 1.12 Hz,which is far smaller than the machine working... |
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| Keywords: | frame dynamic foundation vibration monitor |
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