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本文件为ppt格式,初步介绍微电子器件的封装工艺,推荐下载!...
本文件为ppt格式,初步介绍微电子器件的封装工艺,推荐下载!-this document to ppt format, a preliminary presentation of Microelectronics Packaging Technology, recommended download!
- 2023-01-26 12:40:04下载
- 积分:1
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这是一个下推自动机的模拟程序为完成作业而写,仅仅为实现算法没有界面演示...
这是一个下推自动机的模拟程序为完成作业而写,仅仅为实现算法没有界面演示-This is a pushdown automata simulation operating procedures for the completion of writing, only to realize no algorithm interface demo
- 2022-01-21 20:48:02下载
- 积分:1
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发个红外线遥控程序上来给大家
让大家一起来学习学习
发个红外线遥控程序上来给大家
让大家一起来学习学习
-Infrared remote control procedures issued up to the U.S. so that everyone will work together to learn
- 2022-07-27 16:48:53下载
- 积分:1
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一个漂亮的按钮源码,photoshop源码
一个漂亮的按钮源码,photoshop源码-???????? ?? ?? photoshop ??
- 2022-08-26 14:48:04下载
- 积分:1
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matlab 源程序,对于编程的同学很用,大家看看吧
matlab 源程序,对于编程的同学很用,大家看看吧-Matlab source for programming with the very students, we look at it
- 2022-01-24 09:05:26下载
- 积分:1
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labview xie写的时钟,调用windows api
labview xie写的时钟,调用windows api-labview
- 2022-02-06 02:55:36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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Library Advisory graphics model ppt, inside has a number of documents prepared b...
咨询图形样板库ppt,里边有多个编写交流文档图形实例,非常实用。-Library Advisory graphics model ppt, inside has a number of documents prepared by the exchange of graphic examples, very useful.
- 2022-05-07 19:35:50下载
- 积分:1
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CCS视频演示
CCS视频演示-设置CCS于硬件仿真模式-CCS-CCS installed in the hardware emulation mode
- 2022-02-28 15:37:58下载
- 积分:1
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C code optimization program, it is useful information, resources and the speed o...
C代码优化方案,很实用的资料,对于内存资源及速度冲突的同志很有帮助-C code optimization program, it is useful information, resources and the speed of the memory conflict Comrade helpful
- 2022-05-27 21:14:02下载
- 积分:1