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[3D Graphic] jingquceliang2 DL : 0: 传统计算机语言语法复杂,要求程序员具有较高的编程水平.MATLAB作为一种新兴的计算机语言具有简单易学、代码短小高效、计算功能强大等优点,正日益被广大工程技术及科研人员所接受.介绍了最小二乘法测定点阵参数的数学原理,以及如何利用MATLAB进行编程实现点阵参数的精确测定,并且利用自编的程序测定了贮氢合金LaNi5的点阵参数, 计算结果与现有文献提供数据吻合良好,证明该程序具有较高实用价值.-Traditional computer language syntax complex, requiring the programmer has a high level of programming. MATLAB as a new computer language is simple to learn, the code short and efficient, powerful computing, etc., is increasingly being accepted by the majority of engineering and research personnel. the mathematical theory of least squares method for the determination of the lattice parameter, and how to use MATLAB programming to achieve the accurate determination of the lattice parameter was measured lattice parameters LaNi5 hydrogen storage alloy and use self procedure results with existing literature provide data are in good agreement, to prove that the program has a high practical value.
Date : 2025-12-21 Size : 516kb User : 李五
[3D Graphic] guidaofenix DL : 0: 利用Matlab软件编写的轨道不平顺数据分析程序能够对轨检车测得的不平顺数据进行处理,得到功率谱密度分布函数.轨道不平顺分析程序包括轨道不平顺数据预处理、轨道不平顺谱分布函数计算以及根据实测的车体振动加速度,对轨道不平顺与车体振动加速度进行相干分析、提出对行车运行有不利影响的不平顺波长范围等.研究结果表明:车辆的动力特性与轨道不平顺有密切关系.高低不平顺对车体垂向振动影响显著,轨向不平顺对车体水平振动影响显著,水平不平顺对列车垂向、横向振动均有显著影响.-Matlab software written track irregularity data analysis program able to track inspection car irregularity measured data are processed to obtain the power spectral density function. Track Irregularities track irregularity analysis procedures including data preprocessing, track irregularity spectrum distribution function calculations, and based on the measured vibration acceleration of the vehicle, with the body of track irregularity acceleration coherent analysis, have an adverse impact on traffic running irregularity wavelength range, etc. the results show that: the dynamic characteristics of the vehicle and the track irregularity closely related. rough along the vertical vibration of the vehicle significantly, rail irregularity vibration to levels significantly affect the body, the level of irregularity to train the vertical and horizontal vibration significantly affected.
Date : 2025-12-21 Size : 1.05mb User : 王斌
[3D Graphic] qrmgy DL : 0: Calculation multifractal detrended fluctuation analysis matlab program, Contains two clients receive link-level communications program, Use Chaos and fractal analysis routines.
Date : 2025-12-21 Size : 7kb User : diqprmbg