1.Based on analytical expression that represents the singularity loci of Gough-Stewart manipulator, a quadratic expression that represents singularity loci of the manipulator in parallel principal sections was derived and further property of the singularity loci was identified.
基于Gough-Stewart并联机构奇异轨迹的解析表达式,推导出了该并联机构在主截面上的奇异轨迹,并对此奇异轨迹的性质进行了识别。
2.The CMG is different from traditional flywheel systems for singularity problems, and therefore the research on CMG is concentrated on the steering law study for avoiding singularity.
控制力矩陀螺系统不同于传统的飞轮系统,存在奇异问题。 因此控制力矩陀螺系统理论研究工作主要集中在控制力矩陀螺如何避免奇异的控制律问题的研究上。
3.The singularity of wavefunction at r= 0 and its relation with the potential are disscused. It is pointed that,under the condition that the radial wavefunction is square integrable,the singularity of R nl (0)=∞ is physically acceptable.
讨论了波函数在原点的奇异性问题及其与势场的关系，指出在保证径向波函数平方可积，即积分∫｜Rnl（r）｜2r2dr有限的前提下，出现Rnl（0）＝∞的奇异性，在物理上是可以接受的。
4.A singularity detection and denoising method based on analytic wavelet transform(AWT) and signal reconstruction was proposed to improve the accuracy of signal singularity detection and the efficiency of fault diagnosis. According to the difference of propagation characteristics of wavelet transform modulus maximum(WTMM) of signal and noise along the scale direction,signal denoising and fault feature extraction were realized.
为提高信号奇异性检测的精度和故障特征提取的有效性,利用信号和噪声的小波变换模极大值沿尺度方向的不同传播特性,提出了一种通过解析小波极大模重构进行信号奇异性检测和滤噪的方法,并将解析小波分析引入机械故障诊断中.
5.For forward singularity, the Jacobins matrix is obtained based on velocity projection, a new notion of spatial instantaneous axis is introduced, and the expressive form of the parallel mechanism singularity is given when it is generated.
对于正奇异，推导出一种基于速度投影的雅可比矩阵求解方法，提出了空间瞬时轴这一新的概念，并给出奇异产生时并联机构正奇异的表现形式。
6.It shows that there are similarities between the role of the link of a hypersurface singularity and the space of directions of a singularity in an Alexandrov space.
证明超曲面奇点的链环与亚历山大洛夫空间的奇点的方向空间有一些相似之处.
7.It gets a satisfying result,after using the dual-Euler method in overcoming the singularity of Euler equation in parachute-missle system.
将这套双欧系统应用在克服伞 -弹系统欧拉方程奇异性中 ,取得了满意的结果。
8.In this dissertation we focus on two aspects: Singularity Induced Bifurcation (SIB) of power system DAE models, and High Side Voltage Control (HSVC), and some conclusion are derived.
二,改善系统电压稳定性的发电机高压母线电压控制(High Side Voltage Control,HSVC)。
9.I believe that our best guesses about the post-Singularity world can be obtained by thinking on the nature of strong superhumanity.
我相信对于奇点之后的世界情形的最佳猜测来源于对强势人工智能之本质的思考。
10.Analytic wavelet transform (AWT) only reflects positive frequencies of signals and its modulus oscillation is weaker than real wavelet transform (RWT), so signal noise reduction and singularity detect based AWT can be more accurate than RWT for the signal with additive white noise. Analytic wavelet based constructed by Hilbert transform is applied to the noise reduction based on WTMM.
解析小波变换仅反映信号的正频率，其模振荡较之实小波变换要小，为此将由Hilbert变换构造的解析小波基引入小波极大模信号降噪中，汽车主减速器振动信号的实例分析证明，与实小波极大模降噪方法相比，该方法具有更好的降噪效果。
