Spelling suggestions: "subject:"olerance (engineering)"" "subject:"olerance (ingineering)""
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Tolerance limits based on indirect measurementsHowell, Catherine Johnson 12 1900 (has links)
No description available.
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Geometric modeling of manufacturing processes variations for model-based tolerance analysis /Ong, Jin Boon, January 1994 (has links)
Thesis (Ph. D.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 111-115). Also available via the Internet.
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Non linear tolerance analysis by response surface methodologyHata, Misako. January 2001 (has links)
Thesis (M.S.)--Ohio University, June, 2001. / Title from PDF t.p.
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Computer aided tolerance analysis and process selection for AutoCADPamulapati, Sairam V. 25 February 1997 (has links)
The fundamental objective of a design engineer in performing tolerance technology is to transform functional requirements into tolerances on individual parts based on existing data and algorithms for design tolerance analysis and synthesis. The transformation of functional requirements into tolerances must also consider the existing process capabilities and manufacturing costs to determine the optimal tolerances and processes.
The main objective of this research is to present an integrated but modular system for Computer Aided Tolerance Allocation, Tolerance Synthesis and Process Selection. The module is implemented in AutoCAD using the ARX 1.1 (AutoCAD Runtime Extension Libraries), MFC 4.2, Visual C++ 4.2, Access 7.0, AutoCAD Development System, AutoLISP, and Other AutoCAD Customization tools.
The integrated module has two functions:
a. Tolerance analysis and allocation: This module uses several statistical and optimization techniques to aggregate component tolerances. Random number generators are used to simulate historical data used by most of the optimization techniques to
perform tolerance analysis. Various component tolerance distributions are considered
(Beta, Normal, and Uniform). The proposed analysis technique takes into consideration
the distribution of each fabrication of the component, this provides designers . The
proposed tolerance analysis method takes into consideration the distribution of each
fabrication process of the assembly. For assemblies with non-normal natural process
tolerance distributions, this method allows designers to assign assembly tolerances that
are closer to actual assembly tolerances when compared to other statistical methods. This
is verified by comparing the proposed tolerance analysis method to the results of Monte
Carlo simulations. The method results in assembly tolerances similar to those provided
by Monte Carlo simulation yet is significantly less computationally-intensive.
b. Process Selection: This thesis introduces a methodology for concurrent design that considers the allocation of tolerances and manufacturing processes for minimum cost. This methodology brings manufacturing concerns into the design process. A simulated annealing technique is used to solve the optimization problem. Independent, unordered, manufacturing processes are assumed for each assembly. The optimization technique uses Monte Carlo simulation. A simulated annealing technique is used to control the Monte Carlo analysis. In this optimization technique, tolerances are allocated using the cost-tolerance curves for each of the individual components. A cost-tolerance curve is defined for each component part in the assembly. The optimization algorithm varies the tolerance for each component and searches systematically for the combination of tolerances that minimizes the cost. The proposed tolerance allocation/process selection method was found to be superior to other tolerance allocation methods based on manufacturing costs. / Graduation date: 1997
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Robust metrology procedures for modular robotic systems using indoor GPS coordinate measuring systemKang, Seong Ho 28 August 2008 (has links)
Not available / text
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A reconfiguration-based defect-tolerant design paradigm for nanotechnologiesHe, Chen 28 August 2008 (has links)
Not available / text
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Computer-aided tolerance assignment and analysisLi, Shing Ted 05 1900 (has links)
No description available.
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The use of a piezoelectric actuator to improve precision of a coordinate measurement machineMorrisette, Jennifer A. 12 1900 (has links)
No description available.
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Using C-spaces for tolerance synthesis /Ramaswamy, R. January 1989 (has links)
Thesis (M.E.)--Carnegie Mellon University, 1989. / "October 1989." Includes bibliographical references.
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A computerized optimization method for tolerance control /Yue, Junping, January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 91-92). Also available via the Internet.
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