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threemachines
基于matlab的三机九节点电力系统仿真(Three machine and nine node power system simulation)
- 2020-12-21 09:59:08下载
- 积分:1
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27796714system
说明: ieee 14 bus system, 用于网络潮流计算,PQ节点替换(ieee 14 bus system in electricity netwroks)
- 2020-06-16 05:00:01下载
- 积分:1
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tsp_NSGA
解决多目标的旅行商问题,可得出非劣解和前沿图(To solve the multi-objective traveling salesman problem, we can obtain the non inferiority solution and the frontier graph)
- 2017-06-10 17:30:57下载
- 积分:1
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stiffened ideal for the design of large thickness overcome the problems that may...
加强肋
理想的设计
为了克服壁厚大可能引起的问题,使用是一种可减少壁厚并能增加刚性的有效方法。
一般来说,部件的刚性可用以下方法增强
增加壁厚;
增大弹性模量(如加大增强纤维的含量);
设计中考虑。
如果设计用的材料不能满足所需刚性,则应选择具有更大弹性模量的材料。简单的方法是增加塑料中增强纤维的含量。但是,在特定壁厚下,这种方法仅能使刚性呈线性增长。更有效的方法是使用经过优化设计的。由于惯性力矩增大,部件的刚性便会增大。在优化的尺寸时,不但要考虑工程设计应当考虑的问题,还应考虑与生产和外观有关的技术问题。
优化的尺寸
大的惯性力矩可很容易地通过设置又厚又高的来实现。但是对热塑性工程塑料,这种方法常会产生制品表面凹痕、内部空洞和翘曲等问题。而且,如果的高度过高,在负荷下结构将有可能膨胀。出于这种考虑,必须在合理比例内保持的尺寸(见图1)。-stiffened ideal for the design of large thickness overcome the problems that may arise. use of a reduced wall thickness and rigidity can increase the effective method. In general, the rigid parts of the following methods can be used to enhance increased thickness; increased elastic modulus (such as increasing fiber content); Design considerations. If the design of the materials used can not meet the rigid requirements, they should have a greater choice of elastic modulus of the material. The simple way out is to increase plastics reinforced fiber content. However, in s
- 2022-01-28 16:48:59下载
- 积分:1
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labsql
labview中使用SQL数据库的演示,已经通过测试(LabVIEW SQL database using the demonstration, has passed the test)
- 2008-03-03 22:01:29下载
- 积分:1
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examples
这是LAMMPS中的所有例子,行接触到LAMMPS的新手,不知道在哪下载,我帮你么你列出来了。(This is all the examples in LAMMPS, line access to LAMMPS novice, do not know where to download, I help you you you listed.)
- 2018-11-01 17:49:00下载
- 积分:1
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自主视力
通过使用stm32,自主研发的自助视力检测仪器压缩包为stm32的程序(Through the use of STM32, self developed self-help vision testing instrument compresses the package of STM32.)
- 2018-01-08 15:10:09下载
- 积分:1
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OSS_SDK_DOTNET_2_3_0
阿里云oss源码sdk,oss文件存储对象存储sdk(Aliyun OSS source code sdk, OSS file storage object storage SDK)
- 2020-06-21 23:00:02下载
- 积分:1
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MATLAB希尔伯特Hilbert变换求包络谱 源程序代码
将调制信号通过Hilbert变换,解调出低频信号(Demodulating the low frequency signal through the modulation signal through the Hilbert transform)
- 2021-03-23 16:59:15下载
- 积分:1
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求解结构力学响应
说明: 结构在外部激励下受迫振动,使用Newmark方法求解结构振动有限元方程。(Solving the finite element equation of structural vibration)
- 2020-12-03 19:48:43下载
- 积分:1