| 1. | Geometrical errors analysis and control in for 5 - axis machining of large sculptured surfaces 大型叶片五轴联加工的几何误差控制 |
| 2. | Technology for enhancing the grinding accuracy of precision cam by geometric error compensation method 提高精密凸轮磨削精度的几何误差补偿技术 |
| 3. | Dimensional error in nc turning caused by the differ of the setting highnessof the workpiece and the cutting tool 切削刃与工件旋转中心不等高的几何误差分析 |
| 4. | Study of geometric error parameter identification for smart - cnc grading machine using dual - frequency laser interferometer 曲面磨床几何误差参数辨识中的实验研究 |
| 5. | Based on the current edge collapse algorithms for mesh simplification , in which simplification criteria are minimizing geometric error , a new algorithm was presented 摘要在已有的以几何误差最小化为准则的边折叠简化算法的基础上,提出了一种新的三角网格模型简化算法。 |
| 6. | The paper introduces the approach to checking and measuring , to identifying the errors occurred in the three - axis numerical controlled machine tools with laser interferometer , and builds up the figure model of such errors based on the instruments mentioned above 摘要介绍了利用激光干涉仪检测和辨识数控机床几何精度的方法,建立了基于激光干涉仪的三坐标数控机床几何误差的数学模型。 |
| 7. | For the high - precision - oriented manipulator the accuracy is the crucial performances target . so the error sources is given a full consideration from the performances target . so the error sources is given a full consideration from the geometric errors , and combined with the characteristic of the micromanipultor the error model which can represent the accuracy of the micromanipulator , then the accuracy index is difmed and the relations between the errors and the mechanism parameters have been given by numerical software and the conclusion drawn out may act as the guide of the development of the trial prototype of the micromanipulator 面向高精度操作的微动机器人,精度是其最重要的性能指标。论文从几何误差出发,全面考虑误差来源,并结合微动机器人的特点,建立起反映微动机器人精度的误差模型,定义了评价这些误差的精度指标,并运用数值分析软件分析了误差与机构参数之间的关系。所得结论可用于指导微动机器人实验样机的研制。 |
| 8. | We discuss the visual information from texture image and the cause of texture distortion , and then present a simplification algorithm with texture in chapter three . the visual information from different parts of texture image is measured by color variation , and the possibility of texture distortion is measured by the unevenness of texture intensity ( the area of a triangle ' s corresponding texture divided by its area in geometric space ) 该算法考虑了纹理扭曲的成因和纹理图像内容对视觉的影响,用边缘检测的方法度量纹理图像上不同区域对视觉影响的大小,用纹理密度(三角形对应纹理区域的大小和它在三维空间中面积的比值)的变化度量纹理扭曲发生的可能性和严重程度,并把这些与纹理相关的误差度量和几何误差度量结合。 |
| 9. | Based on the kinematical theory of mbs ( multi - body system ) , the focus on this paper is how to implement grinding machine tool application of geometric error compensation and reduce the effect of the geometric error for enhance the accuracy of sk - 21 nc grinding machine tool 本课题以多体系统运动学理论为基础,将软件误差补偿技术与凸轮加工这个特定的问题相结合,以sk - 21数控凸轮磨床为研究和实验对象展开工作,目的在于如何减小几何误差的影响,从而提高凸轮的制造精度。 |
| 10. | In this paper , accuracy design is completed through two steps : first , we analyze the error of parallel machine tool , the joints " gap are considered by using monte carlo method , also in mis part , three kinds of error sensitivity are established to wholly reflect the error of moving platform 在并联机床的精度设计部分,本文在并联机床的几何误差模型基础上,利用蒙特卡洛方法综合分析了包括铰链间隙的各项误差源对加工误差的影响,并建立了三类误差敏感度以全面评估并联机床的精度特点。 |