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3D Tolerance analysis involving geometric tolerances
2001This paper deals with 3D tolerance analysis involving dimensional and geometric tolerances. The tolerances connected with each component of an assembly are simulated by varying randomly the geometry of its part geometric model features. In particular, an original software has been developed to analyse the influence of the tolerances on the geometry of ...
CARRINO L. +3 more
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A New Approach to Statistical Geometrical Tolerance Analysis
The International Journal of Advanced Manufacturing Technology, 1999As a first step in developing a synthesis technique for assisting designers to specify tolerances in product design, a new 3D statistical tolerance analysis approach is proposed A simple two-hale and two-pin (THTP) assembly is used as an example. On the basis of the introduction of an R-vector to represent position tolerance and a feasible assembly ...
Shan, A., Roth, R. N., Wilson, R. J.
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A geometric approach of form tolerance formulation and evaluation
Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146), 2002We first present a unified geometric formulation of form tolerances using an extended least-squares (E-LSQ) approach. Then, using properties of configuration space of symmetric features an iterative algorithm is developed to solve the E-LSQ problem. Simulation results show that the algorithm not only keeps computational efficiency of the least-squares ...
Jianbo Gou, Yunxian Chu, Zexiang Li 0001
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Error-tolerant geometric graph similarity and matching
Pattern Recognition Letters, 2019Abstract Geometric graph matching is the process of evaluating the similarity between geometric graphs, where each vertex has an associated coordinate point in a plane. Exact matching computes a strict correspondence between two geometric graphs, whereas in error-tolerant matching an approximate similarity between two geometric graphs is computed. In
Shri Prakash Dwivedi, Ravi Shankar Singh
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Probabilistic Analysis of Geometric Tolerances
1996This paper describes a procedure for the statistical analysis of geometric tolerances. The proposed procedure assumes that a manufactured surface lies between two ideal offset surfaces positioned at equal distance from the nominal surface. These surfaces do not represent a tolerance zone, but rather the volume which has the highest probability of ...
A. O. Nassef, H. A. ElMaraghy
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A Mathematical Model for Geometric Tolerances
Journal of Mechanical Design, 1993This paper presents a mathematical model for specifying geometric tolerances. This model along with a syntax of tolerance specification will be referred to as the Tolerance Specification Language (TSL). TSL can be used to interpret ANSI Y14.5 geometric tolerancing specifications. The formalization of TSL is based on a set theoretic approach, especially
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Geometric Methods of Assigning Tolerances
2005 IEEE Intelligent Data Acquisition and Advanced Computing Systems: Technology and Applications, 2005The geometrical interpretation of assigning tolerances is used. It allows the maximal tolerances are evaluated in normal ones. The volume of tolerance domain is optimized. Accuracy of calculation is increased for normal distribution of parameters.
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Geometric Dimensioning and Tolerance Analysis
1991This chapter is divided into two parts: the first discusses the subject of geometric dimensioning and tolerancing and its relevance in design for manufacturability. The second part deals with the why’s, how’s, and the need for tolerance analysis in taking a product from design to manufacture.
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Geometrical in-accuracies and tolerances in microassembly
2007The 17th International Conference on Flexible Automation and Intelligent Manufacturing: 18 June 2007, Philadelphia ...
Ahamed, S. S., Pardasani, A., Kowala, S.
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