It shows a high theoretical and practical value, and establishes a theoretical and technical foundation for the study of controlling and forecasting blast vibration damage.
该方法具有较高的理论和应用价值，为系统开展爆破震动危害控制和预测研究奠定了理论和技术基础。
Blast vibration analysis is a foundation for studying control of blast vibration damage and provides a prerequisite to controlling blast vibration.
爆破振动分析是研究爆破振动危害控制的基础，也是控制爆破振动危害的前提。
However, due to its strong randomicity, fuzziness and uncertainly, even a problem such as transmission laws of blast vibration waves has not yet been cognized perfectly.
然而，由于爆破地震波强烈的随机性、模糊性和不确定性，即便是爆破地震波的传播规律这样似乎简单的问题也尚未得到完整的认识。
It can be used to study blast seismic effect to control and forecast blast vibration damage.
该方法可用于研究爆破地震效应特别是爆破震动危害控制和预测。
Those researches centered on the explosion seismic effect caused by the excavating blast and the criterions of safety vibration velocity for different concrete structures.
以往的研究主要集中在爆破施工产生的地震效应方面，并制定了各种情况下混凝土结构的安全振动速度。
By using equipment vibration testing and diagnostics technique, the blast furnace fan work under the better status.
运用设备振动监测及诊断技术，达到高炉鼓风机运行状态最佳化。
The results show that the blast hole diameter has little effect of the vibration level in production blasting, and the other factors should be considered in large scale delay blast design.
结果表明，除炮孔孔径在实际生产爆破中对振动影响不明显外，其它因素在大区微差爆破的设计中都值得注意。
This method is effective for studying the mechanism of blast vibration damage and blast seismic effect in its entirety, specially, for constituting velocity-frequency criteria.
该方法对综合研究爆破振动危害机理和爆破地震效应，特别是为构建爆破振动速度频率相关安全准则提供了一种有效的分析技术。
The monitoring on blast furnace fan using vibration test technique in details are discussed, and the malfunctions will be analyzed and improved as the detection data.
详述了应用振动监测技术对高炉鼓风机运行状况进行监测，根据监测数据对其存在的故障进行分析诊断，并依诊断结论确定改善方案。
Secondly, three single deck blast vibration signals were analyzed by wavelet packet based on software MATLAB and the change of energy distribution curve at different frequency bands was obtained.
其次，基于MATLAB时爆破振动信号进行小波包分析，得到了爆破振动信号在不同频带上的能量分布图。
Through the dynamic test and the numeric analysis of the isolator, it is proved that the PGG isolator has excellent isolation performance for blast shock and vibration.
经冲击台试验的检验和数值计算分析比较，证明PG G隔震器具有优良的爆炸冲击震动隔震性能。
Vibration analysis has been made for a hanging roller blast pulverizer which runs over the vibration standard and its motion equation is a nonlinear differential equation.
对振动超标的悬辊式旋风磨机进行了振动分析，建立了反映磨机运动的非线性微分方程；
Through dynamic test and theoretical analysis of the isolator, it is proved that the PGG isolator has excellent isolation performance in the case of blast shock and vibration.
经冲击台动力试验和理论计算分析，表明PG G隔震器具有优良的爆炸冲击震动隔震性能。
Through dynamic test and theoretical analysis of the isolator, it is proved that the PGG isolator has excellent isolation performance in the case of blast shock and vibration.
经冲击台动力试验和理论计算分析，表明PG G隔震器具有优良的爆炸冲击震动隔震性能。
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