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- technique dimension chain 工艺尺寸链
- It presents a direct and handy way pf drawing process dimension chain. 介绍一种直观、简便的作工艺尺寸链图的新方法。
- This text tries hard to combine dimension chain with production practice closely and elaborates the conversion of process size during machining. 力求将尺寸链原理与生产实际紧密结合,阐述在机械加工过程中关于工艺尺寸的换算问题。
- Further, the dimension chain calculating formula is deduced when symmetric tolerance marking is used, so that the dimension chain calculating is simplified. 并进一步推导对称公差标注时尺寸链的计算公式,从而简化尺寸链计算。
- This paper dissertate the general framework of Computer Aided Tolerance System, research a series of key questions such as the methods of auto-generation of dimension chain, gives out the prototype program based bn AutoCAD. 本文论述了计算机辅助精度设计的总体框架,研究了尺寸链自动生成等关键技术,并开发了基于AutoCAD平台的原型系统,本文的主要研究内容如下:
- This paper presents a rather new and practical theory and method concerning with the problem of spacial dimension chain,overcoming the complication and difficulty of the erst computation of discomposing first and then synthesizing the spacial dimention. 本文对空间尺寸链计算问题提出了一种较为新颖的理论及解法;克服了以往空间足寸链计算中先分解后合成的复杂多变的高难度计算.
- Based on the VGC(Variational Geometric Constraints) theory, a rule to set up the loop circuit for assembly dimension chain is put forward. The generation method of VGC network for assembly dimension chain is presented. 根据变动几何约束理论,给出了配合回路的生成规则,提出了面向尺寸链的变动几何约束网络的生成方法。
- Some key technology in assem bly design is solved as follows: definition of basic class component parts, esta blishment of assembly modeling, dimension chain of geometry constraint and assig nment of components in assembly modeling. 解决了装配设计中的几个关键问题:装配模型中基类零件的定义、装配模 型的建立、装配图中零部件几何约束尺寸链、装配图中零部件位置确定。
- In the case of different methods for ensuring the assembly accuracy,some problems should be paid attention to when ascertaining composed link dimension tolerance by using assembly dimension chain. 针对保证装配精度的不同方法,指出在机械产品设计中用装配尺寸链确定组成环尺寸公差时应注意的问题,用实例说明了在机械产品的装配、修配及维修过程中尺寸链的分析方法。
- Presents the two-dimension dimensional chain search arithmetic based on DFS. 提出了了异形异构尺寸链的概念,以及基于深度优先算法的二维装配尺寸链搜索方法。
- The paper mainly solves the problem of reasonable dimensioning parts with the help of the concept of dimension chain. 因此,零部件图样上标注尺寸除应满足"正确、完整、清晰"外,还应做到合理。
- Application of Dimension Chain in Machine Assembly 尺寸链在机器装配中的应用
- A New Method in Drawing Process Dimension Chain 作工艺尺寸链图的新方法
- Study on fitting dimension chain of pressure pipe 耐压管装配尺寸链的研究
- The technique is still at the experimental stage. 这项技术正处于实验阶段。
- The design example shows that the reliability design of assemble dimensional chain can quan titatively reflect the satisfaction of design. 设计实例表明,装配尺寸链可靠性设计可定量反映装配尺寸链达到设计要求的程度。
- This paper presents a computer-aided method of automatic generation of dimension chains and penalty function-based tolerance genetic optimization, and the corresponding software has been developed. 研究了一种计算机辅助的交互式尺寸链自动生成方法和基于惩罚函数法的公差遗传优化算法,编制了相应的软件。
- This technique is still in wide use. 这一技术仍被广泛使用。
- The paper draw the fuzzy mathematical principle into the tolerance distributing of the assemble dimensional chain, and presented the concept of fuzzy reliability of this chain. 将模糊数学原理引入到装配尺寸链公差分配中,提出了装配尺寸链装配模糊可靠度的概念。
- The technique of mapping a region or district. 地志学绘制地区地图或行政区地图的技术