查询词典 cylindricity

A cylindricity evaluation approach based on the Particle Swarm Optimization was proposed.

提出了将粒子群优化算法用于圆柱度误差评定的设想。

The cylindricity error separation and reconstruction method proposed in this paper was systematically verified.

利用自律验证法对本文提出的圆柱度误差分离及重构方法系统地进行了实验验证。

An objective function was proposed to evaluate the minimum zone cylindricity error. The error model was optimized by genetic algorithm.

建立了圆柱度误差最小区域评定的目标函数，并利用遗传算法对目标函数进行寻优。

In view of simplifying the calculation, this paper offers the orthogonal projective method of the least square axis for the evaluation of roundness and cylindricity.

从简化计算量的角度出发，提出了评定圆度和圆柱度的最小二乘轴线正交投影法。

However, no method of assessing roundness and cylindricity, which not only meets the definitions of the national standards but also are the rapid and concision properties possessed, has been found.

本文着眼于数字分度头的虚拟仪器化设计，以及轴类零件的形状误差测量，结合对传统数字分度头的改造项目，提出了一种虚拟光栅数显系统的原理。

The experimental results indicate that the instrument error can be more completely separated using the researched method in the paper. So, the precision measurement for the cylindricity error can be realized.

实验结果表明，本文提出的圆柱度误差分离及重构方法可以比较完整地分离出仪器误差，从而实现圆柱度误差的精密测量。

While the plane is measured by using the cylindricity measuring instrument and square ,the data acquisition should be done at the same time.

首先利用圆柱度仪和角尺对被测件进行测量，同时采集原始测量数据，然后利用最小二乘法实现平面度误差的评定。

Roundness and cylindricity are two of the most widely used tolerances, because most of workpieces contain round or cylindrical fraction.

然而，到目前为止圆度和圆柱度的评定仍然没有既符合标准定义又具有快速简洁特性的计算方法。

Aiming at researching on the theory of the shaft-kind parts form error evaluation and its application, on the basis of the analysis for the geometric model of the roundness error and cylindricity error, the linear programming models of the enclosure evaluation were proposed. According to the features of the proposed models, the solution of the optimization algorithms of linear planning was discussed to obtain accurate evaluation results.

为了对轴类零件形状误差评定理论及应用进行研究，在分析轴类零件的圆度、圆柱度误差评定几何模型的基础上，建立了包容拟合评定的规划数学模型，并针对模型的特点，探讨了使用线形规划的单纯形优化算法进行规划模型的求解，从而获得精确的形状误差评定结果。

The honed cross hatch in cylinder bore of engine and the cylindricity of cylinder bore shall affect directly the operating mode and life of engine.

发动机缸孔平台网纹珩磨得是否合理和缸孔圆柱度的优劣直接影响到发动机的工况和寿命。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。