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- First,blasting vibration signal has steady Lipschitz exponent when lb a is between 4.5 and 6.0,and the Lipschitz exponent can describe the charater of blasting vibration field and other singularity information preferably. 分析表明:该爆破试验场地上的爆破振动信号在lb a为4.;5~6
- The results show that the dominant frequency componems of single deck blast vibration signals are concentrated at the higher frequency band(39 Hz-156Hz)and the ratio of the energy of low frequency components(less than 39 Hz) to the total energy is lower. 结果表明,在单段爆破中,爆破震动信号成分主要以中高频(39Hz~156Hz)为主,低频成分(39Hz以下)所占比例极少。
- 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。
- STUDY ON CHARACTERISTIC ABSTRACTION AND IDENTIFICATION TECHNIQUES FOR BLASTING VIBRATION SIGNAL 爆破震动信号的特征提取及识别技术研究
- blasting vibration signal 爆破振动信号
- Application of De-noising for Blasting Vibration Signals Based on Translation Invariant Wavelet 基于平移不变小波爆破振动信号去噪的应用研究
- Influence of Distance from Blasting Center on Frequency Bands Energy Distribution of Blasting Vibration Signals 爆心距对爆破振动信号频带能量分布的影响
- Features of Energy Distribution of Single Deck Blast Vibration Signals with Wavelet Packet Analysis 单段爆破振动信号频带能量分布特征的小波包分析
- INFLUENCE OF BLASTING CONDITION ON TIME-FREQUENCY CHARACTERISTICS OF BLASTING VIBRATION SIGNALS WITH WAVELET PACKETS ANALYSIS 爆破条件对爆破震动信号分析中小波包时频特征的影响
- Blasting vibration signals 爆破震动信号
- With the progress of the mining operation in Lanjian Iron Ore year on year the effect of blasting vibration on safety of adit is increasing. 随着兰尖铁矿采场水平逐年下降,爆破震动对平硐的安全影响日益突出。
- The calculation results and open-pit slope stability under blasting vibration influence are analyzed and appraised. 以计算结果为参照来分析、评价爆破震动对边坡稳定性的影响。
- We also studied the influence of blasting vibration on the people and studied the laws o... 并针对爆破震动对人的影响,以及爆破震动频率的衰减规律进行探讨。
- The deconvolution between cylinder pressure signal and head bolt vibration signal was analyzed. 摘要研究了发动机气缸压力信号与表面振动响应信号之间的反卷积关系;
- The piecewise self-affine fractal model was explored for data coding and reconstruction of vibration signal. 提出了用于对振动信号进行编码及重构的分段自仿射模型。
- So the study of the influence of blasting vibration on underground chambers is of great importantance both in theory and practice. 因此,研究爆破振动对地下洞室的影响,不仅具有重要的理论意义,同时也具有重要的工程意义。
- The lifting wavelet transform is used to construct wavelet to de-noise the vibration signal of turbo generator units. 针对电厂汽轮发电机组振动信号的噪声抑制问题,采用提升小波变换的方法构造小波。
- To determine rational microsecond delay time is both the requirement of ensuring blasting quality and the key to achieve blasting vibration reduction. 确定合理的微差间隔时间,既是保证爆破质量的需要,又是达到爆破降震的关键。
- This model can realize the nonlinear mapping of vibration signal measured under the condition of a reciprocating pump. 使用小波包分析的特征提取功能以及神经网络的非线性映射功能能够较好地完成从振动信号到往复泵故障的分类。
- With the coefficient the paper discussed the safety assessment of the regression formula for predicting the blasting vibration. 用安全系数对回归公式预报爆破震动强度的安全性进行评估。