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企业宣传网站的绝好帮助.其中有ppt,有原码.系北大青鸟的培训项目实战,不可多得的好资料...
企业宣传网站的绝好帮助.其中有ppt,有原码.系北大青鸟的培训项目实战,不可多得的好资料-Enterprises of a website that promotes excellent help. Including ppt, there is the original code. Beida Jade Bird line item of actual combat training, a rare good information
- 2022-05-07 14:35:14下载
- 积分:1
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这是一个能在51中运行的精简UCOSII操作系统
这是一个能在51中运行的精简UCOSII操作系统-This is a run in 51 operating system to streamline UCOSII
- 2023-05-02 07:35:04下载
- 积分:1
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gc:高级程序员考试用书的c程序源文件
gc:高级程序员考试用书的c程序源文件-gc : Senior Programmer examination with the source files c
- 2022-05-14 00:46:51下载
- 积分:1
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Using java language calendar procedures, welcomed everyone to download use
用java语言编写的日历程序,欢迎大家下载使用-Using java language calendar procedures, welcomed everyone to download use
- 2022-03-11 13:22:58下载
- 积分:1
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介绍C64xx DSP Cache的资料,帮助你理解L1,l2的区别
介绍C64xx DSP Cache的资料,帮助你理解L1,l2的区别-C64xx DSP Cache introductory information to help you understand the L1, l2 distinction
- 2022-03-25 10:07:49下载
- 积分:1
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自己做的CD光盘刻录控件,基于Nero SDK实现.
用于刻录文件或文件夹到CD光盘.
源程序晚点儿上载....
自己做的CD光盘刻录控件,基于Nero SDK实现.
用于刻录文件或文件夹到CD光盘.
源程序晚点儿上载.
- 2022-08-03 19:53:12下载
- 积分:1
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用MATLAB实现的信号处理!
低通滤波器高通滤波器可以输出方波!...
用MATLAB实现的信号处理!
低通滤波器高通滤波器可以输出方波!-MATLAB signal processing! Low-pass filter high-pass filter can output pulse!
- 2023-07-05 13:25:03下载
- 积分:1
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嵌入式开发的u
嵌入式开发的u-boot命令介绍
加快你的开发进度-Embedded Development u-boot your order on accelerating the development progress
- 2022-03-02 08:57:47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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很经典的游戏,完全重新开发,很适合工作很忙的人来玩,老少皆移,而且游戏有很强的逻辑性!...
很经典的游戏,完全重新开发,很适合工作很忙的人来玩,老少皆移,而且游戏有很强的逻辑性!-classic games, the complete re-development, the work is very suitable for busy people to play, young and old were moved, but the game has a strong logic!
- 2022-04-25 14:20:14下载
- 积分:1