Nonlinear error analysis of convex surface grinding in RTCP mode

Author(s):  
Shaolei Wang ◽  
Jiuqiang Wang ◽  
Lijuan Liu ◽  
Zhanying Wang ◽  
Jianming Liang ◽  
...  
2008 ◽  
Vol 35 (2) ◽  
pp. 240-244
Author(s):  
陈本永 Chen Benyong ◽  
穆瑞珍 Mu Ruizhen ◽  
周砚江 Zhou Yanjiang ◽  
李达成 Li Dacheng

2019 ◽  
Vol 436 ◽  
pp. 264-268
Author(s):  
Yuan Yang ◽  
Yong Deng ◽  
Yidong Tan ◽  
Zhenyu Huang ◽  
Yong Zhang ◽  
...  

2007 ◽  
Author(s):  
Zhen-zhong Wang ◽  
Yin-biao Guo ◽  
Hao Huang ◽  
Jiang Gou

2011 ◽  
Vol 121-126 ◽  
pp. 3662-3666 ◽  
Author(s):  
Yong Qiao Li ◽  
Yong Xiang Chen ◽  
Qiang Chen

As for the widely used five-axis NC machine with dual turntable, this paper constructs the kinematics mathematic model and finishes solving the machine kinematics formula on the basis of workpiece coordinates system. On the basis of detailed discussion on the effective method for calculating nonlinear error, this paper provides the analysis and calculation and processing procedure for overproof. By processing cutter location (CL) data, the validity and feasibility of the method is tested correct by simulation. Accordingly, this paper provides an inerrable basis for the overproof processing method for design of the general postprocessing system.


1999 ◽  
Vol 173 ◽  
pp. 185-188
Author(s):  
Gy. Szabó ◽  
K. Sárneczky ◽  
L.L. Kiss

AbstractA widely used tool in studying quasi-monoperiodic processes is the O–C diagram. This paper deals with the application of this diagram in minor planet studies. The main difference between our approach and the classical O–C diagram is that we transform the epoch (=time) dependence into the geocentric longitude domain. We outline a rotation modelling using this modified O–C and illustrate the abilities with detailed error analysis. The primary assumption, that the monotonity and the shape of this diagram is (almost) independent of the geometry of the asteroids is discussed and tested. The monotonity enables an unambiguous distinction between the prograde and retrograde rotation, thus the four-fold (or in some cases the two-fold) ambiguities can be avoided. This turned out to be the main advantage of the O–C examination. As an extension to the theoretical work, we present some preliminary results on 1727 Mette based on new CCD observations.


1995 ◽  
Vol 11 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Dietmar Heubrock

Performance on a German version of the Rey Auditory-Verbal Learning Test (AVLT) was investigated for 64 juvenile patients who were subdivided in 6 clinical groups. In addition to standard evaluation of AVLT protocols which is usually confined to items recalled correctly, an error analysis was performed. Differentiating between total errors (TE), repetition errors (RE), and misnamings (ME), substantial differences between clinical groups could be demonstrated. It is argued that error analysis of verbal memory and learning enriches the understanding of neuropsychological syndromes, and provides additional information for diagnostic and clinical use. Thus, it is possible to gain a more accurate picture so that patients can be appropriately retrained, and research into the functional causes of memory and learning disorders can be intensified.


1994 ◽  
Vol 4 (10) ◽  
pp. 1999-2012 ◽  
Author(s):  
Nabil Derbel ◽  
Mohamed B.A. Kamoun ◽  
Michel Poloujadoff

Author(s):  
A. D. Kozlov ◽  
Yu. P. Potekhina

Although joints with synovial cavities and articular surfaces are very variable, they all have one common peculiarity. In most cases, one of the articular surfaces is concave, whereas the other one is convex. During the formation of a joint, the epiphysis, which has less kinetic energy during the movements in the joint, forms a convex surface, whereas large kinetic energy forms the epiphysis with a concave surface. Basing on this concept, the analysis of the structure of the joints, allows to determine forces involved into their formation, and to identify the general patterns of the formation of the skeleton.


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