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primitive error
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  原始误差
     In this software, design diagram paper and relevant technique terms according to the organization, compute the partial position error margin its spare parts primitive error margin cause respectively first, then proceed the error margin synthesize, begging the total accuracy that organization may attain.
     在本软件中,根据机构设计图纸及有关技术条件,先分别计算其零件原始误差和物理变形引起的局部位置误差,再进行误差合成,求出该机构可能达到的总精度。
短句来源
     The difference between the differential and the finite-difference operator is however a primitive error source in the numerics.
     然而,解析性微分算子和离散性差分算子的差异却是造成数值计算的原始误差源。
短句来源
     On the basis of precision analysis and in view of individual affection tenet of error and equivalent affection principle of primitive error and taking the manufacturing cost to be a minimum as the optimization target,this paper considered the fit clearance error of moving pairs and error of rod length and using the fuzzy genetic algorithm to carrying out the precision synthesis on the 6 DOFparallel platform mechanism.
     在精度分析的基础上,基于误差独立作用原理和原始误差等效作用原则,考虑运动副配合间隙误差和杆长误差,利用模糊遗传算法,以制造成本最小为优化目标,对6-DOF并联平台机构进行精度综合。
短句来源
     Posture errors are the important factor that affecting the performance of parallel 6DOF simulative platform. By adopting the matrix differential method this paper derived the relationship between the primitive error and the posture error of platform. A study was carried out on the probability distribution of platform error on the basis of Monte Carlo method,and the sensitivity of various kinds of primitive errors affected by platform error was analyzed.
     位姿误差是影响并联6自由度模拟平台性能的重要因素,文中采用矩阵微分法推导了原始误差与平台位姿误差之间的关系式,基于蒙特卡洛法对平台误差的概率分布进行研究,并分析了平台误差对各种原始误差的敏感度。
短句来源
  相似匹配句对
     ON HUMAN ERROR
     论人的失误
短句来源
     The error of FIF
     分形插值函数的误差
短句来源
     In the primitive subsect.
     在原始的菝葜叶铁线莲亚组subsect.
短句来源
     The equations of error growth are obtained from the spectral primitive equation model.
     从一般的谱展开方程出发,详细推导了误差增长方程。
短句来源
     Error Adjustable Texture Classification Algorithm Based on Primitive Element Distribution
     基于基元分布的误差可调纹理分类算法
短句来源
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  primitive error
Analysis and interpolation of a primitive error function by the results of difference measurements
      
Synthesis of a primitive error function made directly from its difference measurements results
      
The difference between the differential and the finite-difference operator is however a primitive error source in the numerics.
      
But basically we were using a very primitive error correction technique that would buy you a couple dB, which was worthwhile.
      


Highly accurate spatial discretization is essentially required to perform numerical climate and weather prediction. The difference between the differential and the finite-difference operator is however a primitive error source in the numerics. This paper presents an optimization of centered finite-difference operator based on the principle of constrained cost function, which can reduce the truncation error to minimum. In the optimization point of view, such optimal operator is in fact an attempt...

Highly accurate spatial discretization is essentially required to perform numerical climate and weather prediction. The difference between the differential and the finite-difference operator is however a primitive error source in the numerics. This paper presents an optimization of centered finite-difference operator based on the principle of constrained cost function, which can reduce the truncation error to minimum. In the optimization point of view, such optimal operator is in fact an attempt to minimize spatial truncation er-rors in atmospheric modeling, in a simple way and indeed a quite innovative way to implement Variational Continuous Assimilation (VCA) technique.Furthermore, the optimizing difference operator is consciously designed to be meshing-independent, so that it can be used for most Arakawa-mesh configurations, such as un-staggered (Arakawa-A) or com monly staggered (Arakawa-B, Arakawa-C, Arakawa-D) mesh. But for the calibration purpose, the pro-posed operator is implemented on an un-staggered mesh in which the truncation oscillation is mostly ex-cited, and it thus makes a severe and indeed a benchmark test for the proposed optimal scheme. Both theo-retical investigation and practical modeling indicate that the aforementioned numerical noise can be significantly eliminated.

气候和天气数值预测本质上都需建立在离散空间的基础上,并要求有高精度的空间离散化计算方案。然而,解析性微分算子和离散性差分算子的差异却是造成数值计算的原始误差源。作者根据约束性代价函数原理提出了能够使得截断误差最小化的中心差分优化算子。从最优化角度看,该算子本质上是以一种简单但却相当创新的方式尝试应用变分连续同化(VCA)技术来最小化大气模式中的空间截断误差。此外,该优化差分算子的设计不依赖于网格结构,即可应用在绝大多数Arakawa网格上,诸如非跳点网格(Arakawa—A)以及常规跳点网格(Arakawa—B,Arakawa—C,Arakawa—D)。但为了对优化差分算子精确性进行严格测定,该算子的基准试验结果是通过在截断误差最易被激发出来的非跳点网格上进行严格理论和实际数值模拟测试得到的。两者的结果都表明该优化差分算子截断误差造成的数字噪音能被减小到最小量。

Position-orientation errors are crucial factors to affect the performance of a six degrees of freedom(DOF) motion simulation platform.Matrix differential method was employed to derive the relation between the primitive errors and the platform's position-orientation errors.Sensitivity equation was further presented for the platform's position-orientation errors relative to all primitive errors.An objective function was established for the error synthesis based on sensitivity...

Position-orientation errors are crucial factors to affect the performance of a six degrees of freedom(DOF) motion simulation platform.Matrix differential method was employed to derive the relation between the primitive errors and the platform's position-orientation errors.Sensitivity equation was further presented for the platform's position-orientation errors relative to all primitive errors.An objective function was established for the error synthesis based on sensitivity constraint conditions and a corresponding optimizing approach is presented according to proportion of the primitive errors'sensitivity.An example was completed to verify the effectiveness of the above method.It can provide a reference for the precision design of six-DOF motion simulation platforms.

位姿误差是影响运动模拟台性能的重要因素。用矩阵微分法推导了平台位姿误差和42种原始误差之间的关系式,定义了平台位姿误差对各种原始误差的敏感度,并建立基于敏感度约束条件的原始误差优化目标函数,给出了按敏感度的比例对原始误差进行综合的优化方法,通过实例验证了基于敏感度的误差综合方法的有效性。基于敏感度的误差综合方法对六自由度运动模拟台的精度设计具有参考作用。

Precision design is an important means for the error calibration technique of robot and precision synthesis is the inverse problem of precision analysis.It touches upon the problems of laying down reasonably the manufacturing tolerance of components and the assembling error of each joint after given out the maximum pose error of end manipulator in the working space.On the basis of precision analysis and in view of individual affection tenet of error and equivalent affection principle of primitive error...

Precision design is an important means for the error calibration technique of robot and precision synthesis is the inverse problem of precision analysis.It touches upon the problems of laying down reasonably the manufacturing tolerance of components and the assembling error of each joint after given out the maximum pose error of end manipulator in the working space.On the basis of precision analysis and in view of individual affection tenet of error and equivalent affection principle of primitive error and taking the manufacturing cost to be a minimum as the optimization target,this paper considered the fit clearance error of moving pairs and error of rod length and using the fuzzy genetic algorithm to carrying out the precision synthesis on the 6 DOFparallel platform mechanism.The result of solution of this method could satisfy the precision requirement and possess value of practical application.

精度设计是机器人误差标定技术的重要手段,精度综合是精度分析的逆问题,涉及在工作空间中给定末端操作器的最大位姿误差后,合理地制定出零部件的制造公差及各关节的装配误差的问题。在精度分析的基础上,基于误差独立作用原理和原始误差等效作用原则,考虑运动副配合间隙误差和杆长误差,利用模糊遗传算法,以制造成本最小为优化目标,对6-DOF并联平台机构进行精度综合。该方法的求解结果能满足精度要求,具有实用价值。

 
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