构造旋转 meaning in English
tectonic rotation
Examples
- In this paper , we take the reconstruction of surface of revolution as our main aim , and by using the delaunay triangulation , the definition of curvature and the theory of b - spline , we present a way of reconstructing surface of revolution from point cloud . the main content of this paper is given in the following . computer aided geometric design and reverse engineering are the basis of this article
本文以旋转面重建算法为主要研究对象，应用三角部分、曲率的定义以及b样条理论提出了一种由点云数据构造旋转面的方法，主要工作如下：计算机辅助几何设计以及反向工程是本文的理论基础，因此论文的第一章对其进行了简短的回顾和综述，并给出了旋转面重建算法目前的研究状况。 - According to the time variation and feature extraction difficulty of rotating machinery vibration signals , the rule of choosing wavelet basis function and wavelet denoising soft - thresholding value is proposed after making further research on wavelet transform technique , using for denoising rotating machinery vibration signals the conception of " energy " is proposed , based on the theory that signals energy in all frequency can be affected by faults deeply , to construct feature vectors of rotating machinery vibration signals which can give a convenient disposal way to fault feature extraction and fault intellectual diagnosis
针对旋转机械振动信号的非平稳性及特征难以提取的特点，通过对小波变换技术的进一步研究，提出旋转机械振动信号处理的小波基函数选择原则及小波包消噪的软阀值原则。利用小波包变换对旋转机械振动信号进行消噪处理和特征提取。并以“能量”为元素，构造旋转机械振动信号的特征向量，从而为旋转机械振动信号的故障特征提取以及后续的故障智能诊断提供了一种便捷的处理方法。