Results 241 to 250 of about 302,221 (293)

Optimal Tolerance Allocation for Tolerance Stack-Ups

19th Design Automation Conference: Volume 2 — Design Optimization; Geometric Modeling and Tolerance Analysis; Mechanism Synthesis and Analysis; Decomposition and Design Optimization, 1993
Abstract The allocation of individual tolerances that form critical stack-ups is an important task in mechanical design. It is desirable, but difficult in practice, to allocate tolerances to obtain all required stack-ups at minimum cost. A minimum-cost allocation method is proposed here that works for both a single tolerance stack-up and
Thomas L. Dresner, Philip Barkan
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Tolerance Allocation Methodology for Manufacturing

SAE Technical Paper Series, 1996
<div class="htmlview paragraph">Wise specification of dimensional tolerances for manufactured parts is becoming recognized by the industry as a key to being competitive. This paper describes a tolerance allocation methodology that is based on: statistical stack-up approach using Taylor's Series, manufacturing capability, and manufacturing costs ...
Raj Kawlra, Walton Hancock
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Fast Fault-Tolerant Resource Allocation

2011 12th International Conference on Parallel and Distributed Computing, Applications and Technologies, 2011
We present the first efficient approximation algorithm for the Unconstrained Fault-Tolerant Resource Allocation (UFTRA) problem [13] with uniform fault tolerance levels. UFTRA is a relaxation of the classical Fault-Tolerant Facility Location problem [11].
Kewen Liao, Hong Shen
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ROBUST TOLERANCE ALLOCATION USING STOCHASTIC PROGRAMMING

Engineering Optimization, 1998
Abstract Tolerance allocation in manufacturing is a prominent industrial task for enhancing productivity and reducing manufacturing costs. The classical tolerance allocation problem can be formulated as a stochastic program to determine the assignment of component tolerances such that the manufacturing cost is minimized.
Chiang Kao
exaly   +2 more sources

The Reduced Tolerance Allocation Problem

Volume 11: Systems, Design, and Complexity, 2016
Tolerance allocation is a necessary and important step in product design and development. It involves the assignment of tolerances to different dimensions such that the manufacturing cost is minimum, while maintaining the tolerance stack-up conditions satisfied.
David Sh. L. Shoukr, Mohamed H. Gadallah, Sayed M. Metwalli   +2 more
openaire   +1 more source

Fault-Tolerant Facility Allocation

2013
The problem of Fault-Tolerant Facility Allocation (FTFA) is a relaxation of the classical Fault-Tolerant Facility Location (FTFL) problem (Jain K, Vazirani VV (2000) An approximation algorithm for the fault tolerant metric facility location problem.
Shen, H., Xu, S.
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From tolerance allocation to tolerance-cost optimization: a comprehensive literature review [PDF]

International Journal of Advanced Manufacturing Technology, 2020
AbstractIt is widely acknowledged that the allocation of part tolerances is a highly responsible task due to the complex repercussions on both product quality and cost. As a consequence, since its beginnings in the 1960s, least-cost tolerance allocation using optimization techniques, i.e.
Benjamin Schleich, Sandro Wartzack
exaly   +2 more sources

Tolerance allocation using neural networks

The International Journal of Advanced Manufacturing Technology, 1995
The purpose of tolerance allocation is to find a combination of tolerances to individual components such that the assembly tolerance constraint is met with minimum production cost. There are several methods available to allocate or apportion the assembly tolerance to individual parts.
Parimal Kopardekar, Sam Anand
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Optimum Tolerance Allocation in Assembly

The International Journal of Advanced Manufacturing Technology, 1999
This paper presents a new approach to optimum tolerancing of components in an assembly such that all interaction requirements are met. The requirements may be for unilateral tolerance for control of clearance and interference or they may be for bilateral tolerance control. A model showing the relationship between components is constructed directly from
B. K. A. Ngoi, Ong Jon Min
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Tolerance allocation based on fuzzy logic and simulated annealing

Journal of Intelligent Manufacturing, 1996
This paper presents a new technique for dealing with tolerance allocation problems, which can be encountered in the design process of mechanical engineering practice. This technique uses a combination of fuzzy logic to evaluate manufacturing difficulties and a simulated annealing algorithm to optimize tolerance allocation over the complete dimensioning
Marek Balazinski
exaly   +2 more sources