当前位置:
首页
资源下载
![](/images/right.gif)
搜索资源 - Vibration frequency
搜索资源列表
-
0下载:
共振解调法诊断轴承损伤类故障的原理概述如下:当轴承某一元件表面出现局部损伤时,在受载运行过程中要撞击与之相互作用的其它元件表面,产生冲击脉冲力,由于冲击脉冲力的频带很宽,必然包含轴承外圈、传感器甚至附加的谐振器等的固有频率而激起这个测振系统的高频固有振动。根据实际情况可以选择某一高频固有振动作为研究对象,通过中心频率等于该固有频率的带通滤波器把该固有振动分离出来。然后进行包络解调,去除高频衰减振动的频率成分,得到只包含故障特征信息的低频包络信号,对这一包络信号进行频谱分析便可以容易地诊断出轴承的
-
-
0下载:
The buffeting theory [1] refers to the computation of the response of a structure to wind turbulence. Here, the structure is a suspension bridge, modeled using the theory of continuous beam. The frequency domain approach is used. No modal coupling is
-
-
1下载:
对轴承振动信号进行各种时频分析,以获取相应的时频域分布图,用于轴承故障诊断-bearing vibration signal time-frequency analysis to obtain the corresponding time-frequency domain distribution for bearing fault diagnosis
-
-
0下载:
根据刚体尺寸、减振器刚度计算六自由度隔振系统的固有频率-The natural frequency of the six degree of freedom vibration isolation system is calculated according to the rigid body size and the stiffness of the shock absorber.
-
-
0下载:
计算振动信号的Choi-Williams分布,通过对照轴承故障特性频率可知,轴承的外圈发现了故障,完成了对外圈的故障特征提取。-The Choi-Williams distribution of the vibration signal is calculated. Through the comparison of the bearing fault characteristic frequency, the outer ring of the bearing is found to be f
-
-
0下载:
对时域信号进行滤波以及进行频域分析,可应用在机械震动信号领域-
Filtering and frequency domain analysis of time-domain signal can be used in the field of mechanical vibration signal
-
-
2下载:
利用有限元方法求解悬臂梁的振动问题,输入节点数可以算出前六阶振型,计算固有频率-Using the finite element method to solve the vibration problem of a cantilever beam, the input nodes can calculate the first six vibration mode, calculate the natural frequency
-
-
0下载:
超声波发生器内部结构有两个压电晶片和一个共振板。当它的两极外加脉冲信号,其频率等于压电晶片的固有振荡频时,压电晶片将会发生共振,并带动共振板振动,便产生超声波。-Ultrasonic generator internal structure has two piezoelectric chip and a sounding board. When it is applied bipolar pulse signal having a frequency equal to the natural
-
-
0下载:
输入旋转机械振动信号,转速,采样频率。输出1-5倍转频幅值以及常见的13个时域特征-Enter rotating machinery vibration signals, rotational speed, the sampling frequency. 1-5 times the output amplitude and frequency transfer of 13 common characteristics in time domain
-
-
4下载:
实测一组机械系统的振动信号,记录采样频率、采样点数,估计该组振动信号的均值、均方值、方差、自相关函数和功率谱,其中功率谱估计对比频率平滑与分段平滑的效率,针对分段平滑、分析不同平滑次数对功率谱估计的影响-Found a mechanical vibration signal system, the recording sampling frequency, sampling points, the estimated mean the set of vibration signals mean
-
-
0下载:
桨叶嵌入式液弹吸振器,是一种新型的桨叶减摆器,该函数功能是求桨叶在一阶激励频率下的幅频响应,-Liquid bomb embedded blade vibration absorber, is a new blade damper, the function function is seeking an order in the blade under the excitation frequency amplitude-frequency response,
-
-
0下载:
使用混沌与分形分析的例程,迭代自组织数据分析,可以广泛的应用于数据预测及数据分析,数据模型归一化,模态振动,可以得到很精确的幅值、频率、相位估计,信号处理中的旋转不变子空间法。- Use Chaos and fractal analysis routines, Iterative self-organizing data analysis, Can be widely used in data analysis and forecast data, Normalized data model,
-
-
0下载:
可以得到很精确的幅值、频率、相位估计,相控阵天线的方向图(切比雪夫加权),用于信号特征提取、信号消噪,数据模型归一化,模态振动,包括最小二乘法、SVM、神经网络、1_k近邻法,IDW距离反比加权方法。- You can get a very accurate amplitude, frequency, phase estimation, Phased array antenna pattern (Chebyshev weights), For feature extraction, signal
-
-
1下载:
可以得到很精确的幅值、频率、相位估计,有均匀线阵的CRB曲线,数据模型归一化,模态振动,对信号进行频谱分析及滤波,一种流形学习算法(很好用),一种噪声辅助数据分析方法。- You can get a very accurate amplitude, frequency, phase estimation, There ULA CRB curve, Normalized data model, modal vibration, The signal spectral analysis and fi
-
-
0下载:
相控阵天线的方向图(切比雪夫加权),本程序的性能已经超过其他算法,可以得到很精确的幅值、频率、相位估计,数据模型归一化,模态振动,计算多重分形非趋势波动分析,各种kalman滤波器的设计。-Phased array antenna pattern (Chebyshev weights), This program has exceeded the performance of other algorithms, You can get a very accurate amplitude, fre
-
-
0下载:
分析了该信号的时域、频域、倒谱,循环谱等,相关分析过程的matlab方法,是机器学习的例程,数据模型归一化,模态振动,虚拟力的无线传感网络覆盖,代码里有很完整的注释和解释。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Correlation analysis process matlab method, Machine learning routines, Norma
-
-
0下载:
LCMV优化设计阵列处理信号,有CDF三角函数曲线/三维曲线图,数据模型归一化,模态振动,使用拉亚普诺夫指数的公式,迭代自组织数据分析,可以得到很精确的幅值、频率、相位估计。- LCMV optimization design array signal processing, There CDF trigonometric curve/3D graphs, Normalized data model, modal vibration, Raya Punuo Fu index using the
-
-
1下载:
可以得到很精确的幅值、频率、相位估计,相控阵天线的方向图(切比雪夫加权),matlab开发工具箱中的支持向量机,直线阵采用切比学夫加权控制主旁瓣比,滤波求和方式实现宽带波束形成,数据模型归一化,模态振动。- You can get a very accurate amplitude, frequency, phase estimation, Phased array antenna pattern (Chebyshev weights), matlab development toolbox s
-
-
0下载:
数据模型归一化,模态振动,可以得到很精确的幅值、频率、相位估计,表示出两帧图像间各个像素点的相对情况,重要参数的提取,matlab编写的元胞自动机,有循环检测,周期性检测。- Normalized data model, modal vibration, You can get a very accurate amplitude, frequency, phase estimation, Between two images showing the relative circumstances
-
-
0下载:
分析了该信号的时域、频域、倒谱,循环谱等,多姿态,多角度,有不同光照,是机器学习的例程,利用matlab GUI实现的串口编程例子,实现了对10个数字音的识别,数据模型归一化,模态振动。- Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Much posture, multi-angle, have different light, Machine learning rou
-
«
1
2
...
4
5
6
7
8
910
11
12
13
14
...
30
»