1) PRONY transform
PRONY变换
2) time-varying Prony method
时变Prony法
1.
According to nonlinear damping characteristics of an alloy,the moving Prony and the time-varying Prony methods based on the Prony method are put forward to identify the nonlinear damping of the alloy from its free response signal.
针对合金材料的非线性阻尼性质,在扩展的Prony法的基础上提出了从自由响应信号中辨识非线性阻尼的移动Prony法和时变Prony法。
3) Prony method
Prony法
1.
The Prony method is studied chiefly,and an improved form of Prony method is proposed.
重点研究了极点提取的Prony法,并在其基础上提出了它的一种改进形式。
2.
By use of Prony method the mechanism of capacitor switching event and voltage magnification phenomena in power distribution system is analyzed and the simulated signals are decomposed into different components.
应用Prony法对配电系统中的电容器操作事件和电压放大问题进行了机理分析,并将仿真信号分解为不同的分量。
3.
A middle and long term electricity demand forecasting method based on multi-exponents sliding forecast model was put forward and the prony method was applied to analyze and process the historical data.
提出了一种基于多指数平滑模型的中长期需电量预测方法,并应用prony法对历史数据进行分析和处理,得到多指数平滑预测模型中的各个参数,从而预测其后几年的需电量。
4) Prony spectrum model
Prony谱
5) moving Prony method
移动Prony法
1.
Furthermore,it is demonstrated that the time-varying Prony method presented is more effective to identify nonlinear damping than the moving Prony method.
针对合金材料的非线性阻尼性质,在扩展的Prony法的基础上提出了从自由响应信号中辨识非线性阻尼的移动Prony法和时变Prony法。
6) prony series
Prony级数
1.
Also,based on the requirement of ANSYS software,an algorithm is deduced to transform the constitutive equations into Prony series.
为了获得沥青混合料粘弹性本构关系,并利用这种本构关系进行各种数值计算,结合贯入试验中采集到的蠕变数据,采用Matlab软件对蠕变柔量进行拟合,得到了由广义Maxwell模型和Burgers模型表示的粘弹性参数;针对ANSYS有限元软件的计算要求,推导了将其转化为Prony级数形式的计算公式。
2.
Using high-temperature creep test to study high-temperature rheological properties of asphalt mixture, considered with finite element method in the related model, proposed used modify Prony series to fit relaxation modulus to determine method the material parameters.
采用高温蠕变试验研究沥青混合料的高温流变特性,结合有限元法中相关模型,提出由修正Prony级数拟合松弛模量确定的材料参数的方法。
3.
Based on the theory of viscoelasticity,generalized Maxwell model has been used as the constitutive equations of viscoelastic properties of asphalt mixture,and generalized Prony series in ABAQUS was used to describe the stress relaxation of asphalt mixture.
以粘弹性力学理论为基础,选用广义Maxwell模型作为沥青混合料粘弹性的本构关系,运用ABAQUS中的广义Prony级数描述其松弛特性。
补充资料：Radon变换和逆Radon变换
Radon变换和逆Radon变换
X线物理学术语。CT重建图像成像的主要理论依据之一。1917年澳大利亚数学家Radon首先论证了通过物体某一平面的投影重建物体该平面两维空间分布的公式。他的公式要求获得沿该平面所有可能的直线的全部投影(无限集合)。所获得的投影集称为Radon变换。由Radon变换进行重建图像的操作则称为逆Radon变换。Radon变换和逆Radon变换对CT成像的意义在于，它从数学原理上证实了通过物体某一断层层面“沿直线衰减分布的投影”重建该层面单位体积，即体素的线性衰减系数两维空间分布的可能性。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条