从零件加工成本与公差关系的现有统计数据拟合得到普遍表达式用于本模型。
A general expression relating the cost of component processing to the tolerance is obtained by fitting to existing data.
通过对数字化预装配方法的分析，提出了基于数字化产品设计模型的装配公差分析和优化方法。
The assembly tolerance analysis and optimization method based on digital product design model is put forward according to the analysis of digitalization preassembly method.
经实例验证，该模型能够表示功能表面的公差信息。
A case indicates that this model can represent the tolerance information of function surfaces.
通过建立并求解优化模型，可实现工序公差的并行优化设计，最后给出了一个工程实例。
Through formulating and solving the optimization model, the concurrent design of process tolerances can be made. Finally a practical example is given.
本文提出的光学公差优化模型可迅速地计算出结果，而不必象通常那样进行反复调整试算。
An optimization model of optical tolerance is proposed to enable straight forward calculation instead of the usual tolerance-budget balancing by trial and error.
根据产品质量要求和公差规定，建立了单元制造质量控制理论的模型。
According to product quality requirements and tolerance regulations, a model of the theory of unit manufacturing quality control is obtained.
本文以尺寸链理论为基础，通过对二阶矩可靠性指标的应用到装配尺寸链的研究，建立计算机辅助公差优化设计的尺寸模型。
Thus a kind of computer aided optimum tolerance design model is built, by the reliability index of second moment based on the Dimension chain theory.
按照指数满足度模型准则，计算精度等级、公差等级。
According to the rule of satisfaction model of index, precision grade and tolerance grade was calculated.
提出了基于事物特性表的公差主模型的建立方法，分析了基于事物特性表的公差变型设计过程。
A method of generating tolerance master model based on SML was addressed, and a variant design process based on SML was proposed.
在产品概念结构设计自动化技术基础上，研究了产品公差设计过程及其特点，提出了四层产品公差结构模型。
The tolerancing process and its characteristics were studied based on the product conceptual structure design automation technology. A four layer product tolerance model was put forward.
建立了三维变动几何约束网络的运动学模型的一般表示式，从而构成了公差大小优化的等式约束。
The general expressions of kinematic model of 3-dimensional VGCN are presented, which is the equation constraint in optimization of tolerance values.
然后，在公差数学定义理论的基础，基于要素的自由度分析，采用不等式约束方程的形式建立各公差带的数学模型。
Then in the foundation of tolerance mathematical definition theory, each tolerance zone's mathematical model was established by inequality based on degrees of feature.
提出用装配基准变动方程组来建立装配公差链模型，通过求解此方程组获得三维装配公差链的分析结果。
A group of equations of assembly datum variation is proposed to model assembly tolerance chain and tri-dimensional tolerance analysis result is obtained through solving those equations.
用该方法表示的几何公差模型能合理地、有效地定义和解释当今的国家公差标准。
It is reasonable that the geometric tolerance model expressed by this method can effectively define and interpret the current national standard of tolerance.
提出了新一代GPS面向产品全生命周期的公差优化设计模型。
An optimal tolerance design model for product life cycle is proposed within the frame of the new generation GPS system.
首先介绍生长型设计的基本概念和模型，而后研究结构与公差并行设计的过程模型。
First, the basic concepts and the principles of the growth design are explained. Then the process model of tolerance synchronous synthesis is built.
一个板簧公差设计的实例验证了推荐模型的有效性。
An example of the leaf spring involving optimal tolerance design is given to demonstrate the effectiveness of the proposed model.
为实现概念结构与公差并行设计，提出了基于功能表面的公差表示模型。
According to the requirements of concurrent design of conceptual design and tolerance design, tolerance representation model based on function surface was studied.
与公差指数、软化度呈极显著正相关。 依回归模型分别分析了硬度与角质率、出粉率、沉淀和评价值之间的线性关系。
The hardness linear relationship with grain vitreousness, flour yield, sedimentation value, valorimeter value was respectively analysed on the regression model.
第三章：建立圆柱要素尺寸公差、形状公差、定向公差和定位公差的数学模型。
In the third chapter, mathematical model of size tolerance, form tolerance, orientation tolerance and location tolerance of cylindrical feature was established.
建立了运动误差与形位公差、制造误差及运动副质量误差等因素的数学模型，给出了三种运动可靠度的计算方法。
The mathematic models of errors among movement and shape seat, manufacture, motion quality etc. are established and the computing method of three motion reliability is put forward.
首先定义尺素和尺素链等概念，并在此基础上建立尺寸公差的尺素表示模型及其语义映射；
Firstly, the concepts of dimensional element (DE) and dimensional element-chain (DEC) are defined, and a geometric tolerancing model expressed by DE and its semantic mapping are also given.
分别给出了二维和三维装配工程实例验证所提出公差分析模型的有效性。
The tolerance analysis examples of 2-d and 3-d assemblies are given to demonstrate the effectiveness of the proposed model, respectively.
为优化装配系统中公差链的公差值，建立了几何尺寸公差的优化模型，并提出公差的分层优化设计算法：第一层，解决设计公称值居中的优化问题；
In order to optimize tolerance values for an assembly system, a model for geometric dimension tolerance optimization was established and an algorithm for optimal tolerance design was proposed.
提出三维动态公差设计的一般模型和优化方法。
Optimization method of sequential tolerance design is proposed for 3 dimensional part manufacturing.
第二章研究了公差稳健设计中所涉及到的成本模型。
In chapter 2, the total cost model involved in tolerance design is studied.
面向零部件公差设计优化问题，提出一种基于层次分析法的产品质量损失成本模型，该模型克服了常用的田口方法的一些缺点。
Based on AHP, a novel quality loss cost model was developed for product tolerance design, which overcome drawbacks of the conventional Taguchi method.
常见的尺寸公差模型是对传统工程图尺寸标注的实现，缺少设计过程方面的理论支持。
Existing D & T models are more or less versions of dimensioning of conventional drawings, and should be based on a sound design process theory.
常见的尺寸公差模型是对传统工程图尺寸标注的实现，缺少设计过程方面的理论支持。
Existing D & T models are more or less versions of dimensioning of conventional drawings, and should be based on a sound design process theory.
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