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定义一个抽象类的CShape,包括纯虚数Area(用来计算面积)和SetData(用来重设形状大小)。然后派生出三角形CTriangle类、矩形CRect类、圆...
定义一个抽象类的CShape,包括纯虚数Area(用来计算面积)和SetData(用来重设形状大小)。然后派生出三角形CTriangle类、矩形CRect类、圆CCircle类,分别求其面积。最后定义一个CArea类,计算这几个形状的面积之和,各形状的数据通过CArea类构造函数或成员函数来设置。-Defines an abstract class CShape, including the pure imaginary number Area (used to calculate the area) and SetData (used to reset the shape, size). Then the triangle CTriangle derived class, rectangle CRect class, round CCircle categories, seeking its size. The final definition of a CArea class, calculate the size of the sum of several shapes, each shape data through CArea class constructor or member function to set up.
- 2022-05-05 02:27:06下载
- 积分:1
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判断数列相邻n项和是否为和数,其中数列可有1000项,n可到10
判断数列相邻n项和是否为和数,其中数列可有1000项,n可到10
- 2022-08-22 15:22:37下载
- 积分:1
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opencv icon matching
opencv icon matching
- 2022-09-14 04:30:03下载
- 积分:1
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ahb2apb
ARM m4 FPGA开发模块,用于 ahb2apb的模块接口(ARM M4 FPGA development module for ahb2apb module interface)
- 2017-07-26 22:57:23下载
- 积分:1
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此文件为Word 格式文件.DOC转换为TXT文件的源代码。
此文件为Word 格式文件.DOC转换为TXT文件的源代码。-This file format for Word documents. DOC converted to TXT file s source code.
- 2023-02-06 11:30:04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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Indicador_Clubinarias_5.1
说明: Clubinarias ,is one of the best indicator to use in the forex markets, and actually has the best accuracy to trade automatically.
- 2020-06-24 21:20:01下载
- 积分:1
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C#高效数据库连接池源码
说明: c# 高效数据库连接池源码 有列子 高效数据库连接池源码(Efficient database connection pool)
- 2019-01-07 15:35:33下载
- 积分:1
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Excel文件读写
微软ole方式读写,excel文件,速度很快,亲测有效(Microsoft ole mode read and write, excel file, fast, pro test effective)
- 2018-01-29 14:55:09下载
- 积分:1
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点击调色板变换背景代码
说明: ery点击调色板变换背景代码是一款点击弹出调色板,选择任意颜色(Ery clicks on the palette to change the background code is a click pop-up palette, choose any color)
- 2019-02-16 08:21:19下载
- 积分:1