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OPNET
OPNET 的开发源码 希望有帮助 -OPNET
- 2023-03-10 01:10:03下载
- 积分:1
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Elman
ELMAN神经网络时间序列预测,带有数据值(ELMAN neural network time series prediction
With the data values
)
- 2021-04-26 20:18:45下载
- 积分:1
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decision tree for uncertain data
数据挖掘决策树,用于非确定性数据的分类,参照国际论文写的-decision tree for uncertain data
- 2023-03-16 07:25:04下载
- 积分:1
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BL6523GX WATTHR寄存器与CF输出对应关系
BL6523相关资料,厂家提供,非常重要。(BL6523 related data, provided by the manufacturer, very important.)
- 2021-04-28 10:58:44下载
- 积分:1
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ansys_to_flac3d6.0_shichong
说明: 岩土工程——PFC颗粒流——PFC辅助小程序——图形导入工具(Geotechnical engineering -- PFC particle flow -- PFC auxiliary program -- Graphic import tool)
- 2020-06-29 19:47:48下载
- 积分:1
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Graphics gems, vol.1
Graphics gems, vol.1
- 2022-01-25 23:25:23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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基于Qt的数据管理系统
应用背景基于Qt的数据管理系统,对Qt的数据库进行了一次应用,对于Qt初学者学习开发数据库等技术有较强学习价值。。。。。。。关键技术setFixedSize(750, 500);
ui->stackedWidget->setCurrentIndex(0);
QSqlQueryModel *typeModel = new QSqlQueryModel(this);
typeModel->setQuery("select name from type");
ui->sellTypeComboBox->setModel(typeModel);
QSplitter *splitter = new QSplitter(ui->managePage);
splitter->resize(700, 360);
splitter->move(0, 50);
splitter->addWidget(ui->toolBox);
splitter->addWidget(ui->dailyList);
splitter->setStretchFactor(0, 1);
splitter->setStretchFactor(1, 1);
on_sellCancelBtn_clicked();
showDailyList();
ui->typeComboBox->setModel(typeModel);
createChartModelView();
- 2023-01-11 19:20:03下载
- 积分:1
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DMA VHDL 设计IP核经常遇到大数据交换要用DMA,本IP核来自开源组织,免费开源版...
DMA VHDL 设计IP核经常遇到大数据交换要用DMA,本IP核来自开源组织,免费开源版-DMA VHDL design IP core often encountered in large data exchange to use DMA, the IP core from the open-source organizations, free open source version
- 2023-07-05 04:35:03下载
- 积分:1
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8250ProgrammableCommunicationInterfaceExperiment
8250可编程通讯接口实验,这是很好的8051F单片机初学者的资料(8250 programmable communication interface experiment, which is a good beginner information 8051F microcontroller)
- 2010-10-13 21:56:21下载
- 积分:1