Relevant bibliographies by topics / Probléme of tolerance

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Probléme of tolerance'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Probléme of tolerance"

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Greenwood, W. H., and K. W. Chase. "Worst Case Tolerance Analysis with Nonlinear Problems." Journal of Engineering for Industry 110, no. 3 (August 1, 1988): 232–35. http://dx.doi.org/10.1115/1.3187874.

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When designers assign tolerances on engineering drawings, they have a significant influence on the resulting cost and producibility of manufactured products. A rational basis for assigning tolerances involves constructing mathematical models of tolerance accumulation in assemblies of parts. However, tolerance stacks in two or three-dimensional problems or other nonlinear assembly functions may distort the resultant assembly tolerances, altering the range and symmetry. An iterative method is described for adjusting the nominal dimensions of the component parts such that the specified assembly limits are not violated.
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Koriakina, Anzhelina A. "The Problem of Ethnic Tolerance Development among Students." Educational Process: International Journal 8, no. 1 (January 15, 2019): 85–90. http://dx.doi.org/10.22521/edupij.2019.81.6.

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Balling, Richard J., Joseph C. Free, and Alan R. Parkinson. "Consideration of Worst-Case Manufacturing Tolerances in Design Optimization." Journal of Mechanisms, Transmissions, and Automation in Design 108, no. 4 (December 1, 1986): 438–41. http://dx.doi.org/10.1115/1.3258751.

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The paper discusses the effect of manufacturing tolerances for the design variables on the solution to an optimization problem. Two formulations of the tolerance problem in an optimization context are presented. Linearization is employed to reduce the problems to quadratic and linear programming problems. The formulations and solutions of the two tolerance problems are illustrated with an example application.
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Vignesh Kumar, D., D. Ravindran, M. Siva Kumar, and MN Islam. "Optimum tolerance synthesis of simple assemblies with nominal dimension selection using genetic algorithm." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 19 (August 8, 2016): 3488–508. http://dx.doi.org/10.1177/0954406215613366.

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Optimum tolerance allocation plays a vital role in minimization of the direct manufacturing cost, and it is sensitive to tolerances related to variations in manufacturing processes. However, optimal adjustment of both nominal dimensions and selection of tolerances may further reduce assembly manufacturing cost and wastage of materials during processing. Most studies in existing literature focus on optimum tolerance allocation for the assemblies without considering nominal dimension selection. The method proposed in this work uses genetic algorithm techniques to allocate tolerances to assembly components, thereby minimizing costs. The component alternate nominal dimensions are predicted based on critical dimensions and its tolerances. The effectiveness of the developed algorithms demonstrated using randomly generated problems as well as sample problems taken from the literature. Test results are compared with those obtained using the Lagrange multiplier method. It is shown that by adjusting the nominal dimensions, the proposed method yields considerable savings in manufacturing costs.
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Banciu, Felicia Veronica, Ion Grozav, and Cristian Gheorge Turc. "Tolerance Allocation Using Design of Experiments." Applied Mechanics and Materials 760 (May 2015): 45–50. http://dx.doi.org/10.4028/www.scientific.net/amm.760.45.

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Tolerance design plays a very important in any manufacturing process because this activity directly influences products cost and quality. In design activity the designer solve the quality problems selecting tight tolerances for components but this generates cost increasing. The practical problem is to assure the high quality characteristics using the maximum tolerances for components that influence them. The paper’s aim is to find optimal parameters setting which assure the desire value of quality characteristics using the DoE (Design of Experiments), and to find a mathematical model and a respective quality characteristic function of the parameters that it was influenced. Using the mathematical function, by imposing the desired tolerance for quality characteristic, it will be allocated the optimal tolerance for components. This tolerance allocation will be verified using Monte-Carlo method.
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Zou, Zhihua, and Edward P. Morse. "Applications of the GapSpace Model for Multidimensional Mechanical Assemblies." Journal of Computing and Information Science in Engineering 3, no. 1 (March 1, 2003): 22–30. http://dx.doi.org/10.1115/1.1565072.

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The most fundamental, and perhaps most important, task in the tolerance analysis of assemblies is to test whether or not the components with tolerances are actually able to fit together (called assembleability). Another important task of tolerance analysis is to check how the tolerances affect the quality or functionality of a product when they are assembled together. This paper presents the way the tolerance analyses are implemented by an assembly model, called the GapSpace model. The model can not only capture the necessary and sufficient conditions for assembleability analysis, but also transfers the functionality into the modeling variables (gaps). The assembleability analyses based on the GapSpace model for nominal components and those with worst case or statistical tolerances are introduced through an example. The problems of testing the quality of assemblies and calculating sensitivities are solved quickly and precisely using the model. The GapSpace model is more suitable for certain GD&T tolerancing methods than for parametric plus/minus tolerancing.
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Tanaka, Fumiki. "Current Situation and Problems for Representation of Tolerance and Surface Texture in 3D CAD Model." International Journal of Automation Technology 5, no. 2 (March 5, 2011): 201–5. http://dx.doi.org/10.20965/ijat.2011.p0201.

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This paper explores current problems in representing of tolerances and surface textures in 3D computeraided design (CAD) models. Today, all available 3D product data, such as dimensioning and tolerance, are not used in digital form throughout the product development processes. Tolerance and surface texture data for product are very important in design data. In downstream processes, such as process planning and manufacturing, such data are referenced to determine machining processes and process parameters. In inspection, such data provide criteria for verifying functionality of the machined product based on measurement results. Previously, such data were communicated using 2D drawing and not included in 3D CAD data.3D models are widely used and demand is increasing for the annotations in 3D model, e.g., standard for the digital product definition data practices was developed by ISO, and the guidelines for 3D drawing were developed by the automobile industry. This paper explores needs and requirements of tolerance and surface texture representations which are associated with 3D CAD data in product development processes, together with current status, problems, and future works in representing tolerances and surface textures associated with 3D CAD data.
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Anggraeni, Dewi, and Siti Suhartinah. "Toleransi Antar Umat Beragama Perspektif KH. Ali Mustafa Yaqub." Jurnal Online Studi Al-Qur'an 14, no. 1 (January 1, 2018): 59–77. http://dx.doi.org/10.21009/jsq.014.1.05.

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This paper is to analyze the thinking of KH Ali Mustafa Yaqub on tolerance inter-religious. Tolerance is urgent for giving solution for the problems religious in Indonesia today. The understanding of tolerance can create harmony inter-religious. This paper is a literature review of Ali Mustafa Yaqub books. The results of this study indicate that conflict inter-religious often occur and very easy to divide the nation one. Therefore need a meaningful interpretation related to good tolerance among the faithful will bring to the harmony of religious life. Keywords: Tolerance, Inter-religious, KH Ali Mustafa Yaqub Abstrak Penelitian bertujuan untuk mengetahui pemikiran KH. Ali Mustafa Yaqub mengenai toleransi antar umat beragama untuk dijadikan satu solusi dalam menjawab permasalahan umat beragama di Indonesia saat ini, yakni permasalahan krisisnya sikap toleransi. Dengan pemahaman yang mendalam mengenai toleransi diharapkan dapat menciptakan kerukunan yang stabil antar umat beragama. Metode dalam penulisan artikel ini adalah kajian literatur atas buku-buku karya Ali Mustofa Yakub. Hasil penelitian menunjukan bahwa konflik antar umat beragama sering terjadi dan berpotensi memecah belah persatuan bangsa; karenanya diperlukan pemaknaan yang komprehensif terkait toleransi yang baik antar umat beragama. Keywords: Toleransi,Umat Beragama, KH. Ali Mustofa Yaqub
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Li, Wei Qi, Jun Hong, Yun Long Li, Yi Zhang, and Zong Bin Li. "A Method on the Decision of Tolerance Grade Based on Cost and Lifetime." Advanced Materials Research 308-310 (August 2011): 568–73. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.568.

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Product tolerance is one of the important factors which affect the quality and cost of product. However, influenced by many complicated factors, there are still many problems which need to be resolved compared with other research works in CAD field. How to determine tolerances of product effectively is still a big problem. Based on exponent model of tolerance-cost, the relationships between tolerance and other characteristics influencing processing cost are studied in this paper. A relational model of tolerance-cost is come up with based on the above relationships. And then, internal relation between tolerance and lifetime is discussed. Meanwhile, along with the lifetime converted into the cost, the compensated relational model of tolerance-lifetime is presented. Finally, the method on the decision of tolerance grade is analyzed. This paper realizes the organic combination of tolerance, lifetime and cost, and effectively decides how to generate tolerance grades.
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Budiwantoro, Bagus, Indra Djodikusumo, and Ade Ramdan. "ANALYSIS OF GEOMETRICAL SPECIFICATION IN DECANTER CENTRIFUGE MACHINE." ASEAN Engineering Journal 8, no. 2 (December 1, 2018): 29–47. http://dx.doi.org/10.11113/aej.v8.15501.

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A decanter centrifuge machine has been developed and currently at a complete stage of a preliminary 3D design layout. The next phase is a production phase. In the production phase, an ideal component that is identical with the 3D model will never be realized. Every manufacturing process has unavoidable variations. If they are accumulated, they can be immense and may cause serious problems. The machine may fail. Thus, the analysis of geometry specification is necessary to be conducted. The main objective of this study is to design the geometry specification which includes their tolerance to assure that the machine will work and achieve its performance, considering variation in manufacturing process. The study consists of four stages, they are: (1) reviewing the 3D design layout, (2) identifying functional key characteristics, (3) analyzing each requirement to determine the geometric dimensioning and tolerancing schemes and (4) allocating tolerances. Every scheme was built through six steps, establish the performance requirements, draw a loop diagram, converting dimension to mean dimension, calculate mean value with stack tolerance, determine the method of tolerance analysis and calculate the variation of performance requirements. The tolerance analysis uses the worst case and statistical methods. They involve 45 fixed tolerances and 38 variable tolerances. The calculated variation data output of every requirement is elaborated to finalize tolerance value that will meet all requirements. Finally, the final tolerance values are allocated and set to component geometry. This analysis concludes that every final tolerance of variable tolerance values must be tighter for the worst case method, and only 42% for statistical method. Probability of machine will work and achieve its performance is 100% for the worst case method and 99.73% for the statistical method.
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Dissertations / Theses on the topic "Probléme of tolerance"

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Yi, Byungho. "Faults and fault-tolerance in distributed computing systems : the election problem." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/8312.

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Zhong, Lunlong. "Contribution to Fault Tolerant Flight Control under Actuator Failures." Phd thesis, INSA de Toulouse, 2014. http://tel.archives-ouvertes.fr/tel-00951340.

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L'objectif de cette thèse est d'optimiser l'utilisation d'actionneurs redondants pour un avion de transport lorsqu'une défaillance des actionneurs arrive en vol. La tolérance aux pannes résulte ici de la redondance des actionneurs présents sur l'avion. Différents concepts et méthodes classiques liés aux chaînes de commande de vol tolérantes aux pannes sont d'abord examinés et de nouveaux concepts utiles pour l'analyse requise sont introduits. Le problème qui est abordé ici est de développer une méthode de gestion des pannes des commandes de vol dans le cas d'une défaillance partielle des actionneurs, qui va permettre à l'avion de poursuivre en toute sécurité la manœuvre prévue. Une approche de commande en deux étapes est proposée et appliquée à la fois à l'évaluation de la manœuvrabilité restante et à la conception de structures de commande tolérante aux pannes. Dans le premier cas, une méthode d'évaluation hors ligne des qualités de vol basée sur la commande prédictive est proposée. Dans le second cas, une structure de commande tolérante aux pannes basée sur la commande non linéaire inverse et la réaffectation des actionneurs en ligne est développée. Dans les deux cas, un problème de programmation linéaire quadratique (LQ) est formulé. Différents cas de pannes sont considérés lorsqu'un avion effectue une manœuvre classique. Trois solveurs numériques sont appliqués aux solutions en ligne et hors ligne des problèmes LQ qui en résultent.
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Wang, Pei. "Simultaneously solving process selection, machining parameter optimization and tolerance design problems: A bi-criterion approach." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/26544.

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The selection of right process, use of optimal machining parameters and specification of best tolerance parameters have been recognized by industry as key issues to ensure product quality and reduce production cost. The three issues have thus attracted a great deal of attention over last several decades. However, they are often addressed separately in existing publications. In reality, the three issues are closely interrelated. Analyzing the three issues in isolation will inevitably lead to inconsistent, infeasible, or conflicting decisions. To avoid the drawbacks, an integrated approach is proposed to jointly solve process selection, machining parameter optimization, and tolerance design problems. The integrated problem is formulated as a bi-criterion model to handle both tangible and intangible costs. The model is solved using a modified Chebyshev goal programming method to achieve a preferred compromise between the two conflicting criteria. The application of the proposed bi-criterion approach has been demonstrated by first using the single component single part feature case. The integrated approach is then extended to the multiple components multiple part features case (the assembly case). Examples are provided to illustrate the application of the two models and the solution procedure. The results have shown that the decisions on process selection, machining parameter selection and tolerance design can be made simultaneously using the models.
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Leiterer, Susanne Paula [Verfasser]. ""Zero Tolerance" gegen soziale Randgruppen? : Hoheitliche Maßnahmen gegen Mitglieder der Drogenszene, Wohnungslose, Trinker und Bettler in New York City und Deutschland. / Susanne Paula Leiterer." Berlin : Duncker & Humblot, 2010. http://d-nb.info/1238354394/34.

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Riquelme, Cepeda Carlos. "Políticas de la tolerancia: interpretaciones ético-políticas sobre el problema de la convivencia intercultural en Chile." Tesis, Universidad de Chile, 2013. http://www.repositorio.uchile.cl/handle/2250/117603.

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Tesis para optar al grado de Doctor en Filosofía
La construcción de las sociedades post-coloniales en América Latina ha tenido como desafío importante la persistencia de la idea de respeto y la lucha por la convivencia pacífica. Sin embargo, en la práctica, las tensiones y conflictos interculturales cada vez más crecientes constituyen un signo preocupante de los tiempos actuales. Estas tensiones se han generado, en gran parte, por el aparente fracaso de los procesos de modernización de aquellas sociedades (Tubino, 2004). La modernización fracasa en América Latina porque, entre otras razones, en lugar de enraizarse en las tradiciones culturales de los pueblos y recrearse desde ellas, les niega validez y las coloca como resistencias u obstáculos para el progreso 14 social del nuevo orden homogéneo (Tubino, 2004). En otras palabras se les da el estatuto del sexto del cuento de Kafka y por lo tanto del daño.
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Aliev, Abdul-Gamid K. "Problemy sochranenija tolerantnosti v uslovijach poliėtničnogo i mnogokonfessional·nogo regiona : (Vserossijskaja naučnaja konferencija, 12 aprelja 2007) /." Machačkala, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016521189&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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NASSEAU, JOELLE. "Chimiotherapie antituberculeuse : evolution des problemes de resistance et de tolerance medicamenteuse de 1975 a 1990 a propos de 92 cas." Toulouse 3, 1993. http://www.theses.fr/1993TOU31043.

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Echaiz, Constanza. "Applied Research Conducted to Resolve the Persistent Problem of Weed Control in Brambles." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1366304534.

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Vu, Chinh Trung. "An Energy-Efficient Distributed Algorithm for k-Coverage Problem in Wireless Sensor Networks." Digital Archive @ GSU, 2007. http://digitalarchive.gsu.edu/cs_theses/40.

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Wireless sensor networks (WSNs) have recently achieved a great deal of attention due to its numerous attractive applications in many different fields. Sensors and WSNs possesses a number of special characteristics that make them very promising in many applications, but also put on them lots of constraints that make issues in sensor network particularly difficult. These issues may include topology control, routing, coverage, security, and data management. In this thesis, we focus our attention on the coverage problem. Firstly, we define the Sensor Energy-efficient Scheduling for k-coverage (SESK) problem. We then solve it by proposing a novel, completely localized and distributed scheduling approach, naming Distributed Energy-efficient Scheduling for k-coverage (DESK) such that the energy consumption among all the sensors is balanced, and the network lifetime is maximized while still satisfying the k-coverage requirement. Finally, in related work section we conduct an extensive survey of the existing work in literature that focuses on with the coverage problem.
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Darwiche, Mostafa. "When operations research meets structural pattern recognition : on the solution of error-tolerant graph matching problems." Thesis, Tours, 2018. http://www.theses.fr/2018TOUR4022/document.

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Cette thèse se situe à l’intersection de deux domaines de recherche scientifique la Reconnaissance d’Objets Structurels (ROS) et la Recherche Opérationnelle (RO). Le premier consiste à rendre la machine plus intelligente et à reconnaître les objets, en particulier ceux basés sur les graphes. Alors que le second se focalise sur la résolution de problèmes d’optimisation combinatoire difficiles. L’idée principale de cette thèse est de combiner les connaissances de ces deux domaines. Parmi les problèmes difficiles existants en ROS, le problème de la distance d’édition entre graphes (DEG) a été sélectionné comme le cœur de ce travail. Les contributions portent sur la conception de méthodes adoptées du domaine RO pour la résolution du problème de DEG. Explicitement, des nouveaux modèles linéaires en nombre entiers et des matheuristiques ont été développé à cet effet et de très bons résultats ont été obtenus par rapport à des approches existantes
This thesis is focused on Graph Matching (GM) problems and in particular the Graph Edit Distance (GED) problems. There is a growing interest in these problems due to their numerous applications in different research domains, e.g. biology, chemistry, computer vision, etc. However, these problems are known to be complex and hard to solve, as the GED is a NP-hard problem. The main objectives sought in this thesis, are to develop methods for solving GED problems to optimality and/or heuristically. Operations Research (OR) field offers a wide range of exact and heuristic algorithms that have accomplished very good results when solving optimization problems. So, basically all the contributions presented in thesis are methods inspired from OR field. The exact methods are designed based on deep analysis and understanding of the problem, and are presented as Mixed Integer Linear Program (MILP) formulations. The proposed heuristic approaches are adapted versions of existing MILP-based heuristics (also known as matheuristics), by considering problem-dependent information to improve their performances and accuracy
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Books on the topic "Probléme of tolerance"

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Gerasimov, Sergey, and Irina Skovorodkina. Tolerance education in Junior schoolchildren. ru: INFRA-M Academic Publishing LLC., 2020. http://dx.doi.org/10.12737/1084985.

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The textbook presents the methodology of solving the problem of formation of tolerance in children of primary school age, the analysis of the legal framework of education for peace, non-violence, human rights and tolerance. Special attention is paid to the theoretical and practical aspects of tolerance in primary school children, didactic tools, the characteristics of the system of pedagogical means of education of tolerance at pupils of elementary school. Consists of a Preface, three chapters, conclusion, Glossary, bibliography and applications. Includes tables and diagrams that can be used in practical lessons with students of pedagogical colleges and universities. Each paragraph has a list of questions for self-examination and in-depth study delineated in this range of problems, exercises, assignments, a list of recommended literature. Intended for students of pedagogical colleges and educational institutions of higher education, and also for listeners of system of improvement of qualification and retraining of teachers.
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Problemy veroterpimosti v Severo-Zapadnom krae Rossiĭskoĭ imperii, 1863-1914 gg. Minsk: Belorusskiĭ gos. universitet, 2010.

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Schweigert, Uwe. Toleranzausgleichssysteme für Industrieroboter am Beispiel des feinwerktechnischen Bolzen-Loch-Problems. Berlin: Springer, 1992.

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Porankiewicz, Bolesław. Problemy układu tolerancji i pasowań dla przemysłu drzewnego. Poznań: Wydawn. Akademii Rolniczej w Poznaniu, 1989.

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Tagañ, ʼAyāléw. Ethiopia's unconditional choice: No tolerance of preventable human death. Addis Ababa: Alpha Printers, 2004.

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Risk tolerance in financial decision making. Basingstoke: Palgrave Macmillan, 2010.

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Saleh, Wendy E. Behaviour problems in our schools: A lesson in patience, tolerance and understanding. Mississauga, ON: The Dufferin-Peel Roman Catholic Separate School Board = Le conseil des écoles séparées catholiques romaines de Dufferin et Peel, 1991.

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Problema tolerantnosti v mezhkonfessionalʹnykh otnoshenii︠a︡kh: Kurs lekt︠s︡iĭ, v dvukh tomakh. Ekaterinburg: Uralʹskiĭ universitet, 2008.

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Budaeva, D. T︠S︡. Mezhnat︠s︡ionalʹnai︠a︡ i mezhkonfessionalʹnai︠a︡ tolerantnostʹ narodov Buri︠a︡tii: Problemy formirovanii︠a︡ i razvitii︠a︡ = Interethnic and interreligious tolerance between peoples of Buryatia : problems of formation and development. Ulan-Udė: Izdatelʹstvo Buri︠a︡tskogo gosuniversiteta, 2012.

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Savvinov, A. S. Chelovek cherez prizmu "Kut-su̇r": Na osnove doklada "Problema cheloveka v dukhovnykh tradit︠s︡ii︠a︡kh ėtnosa sakha : Mezhdunarodnai︠a︡ konferent︠s︡ii︠a︡ "Tolerantnostʹ, vzaimoponimanie i soglasie", 20-25 ii︠u︡ni︠a︡ 1995 g., I︠A︡kutsk. I︠A︡kutsk: I︠A︡kutskiĭ nauch. t︠s︡entr SO RAN, 1995.

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Book chapters on the topic "Probléme of tolerance"

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Bacharoudis, Konstantinos, Atanas Popov, and Svetan Ratchev. "Application of Advanced Simulation Methods for the Tolerance Analysis of Mechanical Assemblies." In IFIP Advances in Information and Communication Technology, 153–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72632-4_11.

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AbstractIn the frame of a statistical tolerance analysis of complex assemblies, for example an aircraft wing, the capability to predict accurately and fast specified, very small quantiles of the distribution of the assembly key characteristic becomes crucial. The problem is significantly magnified, when the tolerance synthesis problem is considered in which several tolerance analyses are performed and thus, a reliability analysis problem is nested inside an optimisation one in a fully probabilistic approach. The need to reduce the computational time and accurately estimate the specified probabilities is critical. Therefore, herein, a systematic study on several state of the art simulation methods is performed whilst they are critically evaluated with respect to their efficiency to deal with tolerance analysis problems. It is demonstrated that tolerance analysis problems are characterised by high dimensionality, high non-linearity of the state functions, disconnected failure domains, implicit state functions and small probability estimations. Therefore, the successful implementation of reliability methods becomes a formidable task. Herein, advanced simulation methods are combined with in-house developed assembly models based on the Homogeneous Transformation Matrix method as well as off-the-self Computer Aided Tolerance tools. The main outcome of the work is that by using an appropriate reliability method, computational time can be reduced whilst the probability of defected products can be accurately predicted. Furthermore, the connection of advanced mathematical toolboxes with off-the-self 3D tolerance tools into a process integration framework introduces benefits to successfully deal with the tolerance allocation problem in the future using dedicated and powerful computational tools.
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Wolter, Katinka. "Basic Concepts and Problems." In Stochastic Models for Fault Tolerance, 3–12. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11257-7_1.

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Haeyen, Suzanne. "Distress Tolerance Skills Module." In Art Therapy and Emotion Regulation Problems, 253–83. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-96773-8_11.

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Jiang, Chao, Xu Han, and Huichao Xie. "Interval Optimization Considering Tolerance Design." In Nonlinear Interval Optimization for Uncertain Problems, 247–58. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-8546-3_12.

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Majeed, Abdul, and Zahir Muhammad. "Salinity: A Major Agricultural Problem—Causes, Impacts on Crop Productivity and Management Strategies." In Plant Abiotic Stress Tolerance, 83–99. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-06118-0_3.

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Pop, Paul, Mirela Alistar, Elena Stuart, and Jan Madsen. "The Compilation Problem." In Fault-Tolerant Digital Microfluidic Biochips, 69–76. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23072-6_5.

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Gray, Jim. "A comparison of the Byzantine Agreement problem and the Transaction Commit Problem." In Fault-Tolerant Distributed Computing, 10–17. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/bfb0042322.

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Kanellakis, Paris Christos, and Alex Allister Shvartsman. "The Write-All Problem: Algorithms." In Fault-Tolerant Parallel Computation, 47–114. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4757-5210-6_3.

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Schultheiss, Ralf, and Uwe Hinze. "Detect the Unexpected — How to Find and Avoid Unexpected Tolerance Problems in Mechanisms." In Global Consistency of Tolerances, 241–50. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1705-2_25.

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Matilla, Miguel A. "Problems of Solventogenicity, Solvent Tolerance: An Introduction." In Cellular Ecophysiology of Microbe, 1–8. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-20796-4_14-1.

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Conference papers on the topic "Probléme of tolerance"

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Shoukr, David Sh L., Mohamed H. Gadallah, and Sayed M. Metwalli. "The Reduced Tolerance Allocation Problem." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65848.

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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. Considering the design functional requirements, manufacturing processes, and dimensional and/or geometrical tolerances, the tolerance allocation problem requires intensive computational effort and time. An approach is proposed to reduce the size of the tolerance allocation problem using design of experiments (DOE). Instead of solving the optimization problem for all dimensional tolerances, it is solved for the significant dimensions only and the insignificant dimensional tolerances are set at lower control levels. A Genetic Algorithm is developed and employed to optimize the synthesis problem. A set of benchmark problems are used to test the proposed approach, and results are compared with some standard problems in literature.
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Lo¨o¨f, Johan, and Rikard So¨derberg. "Top-Down Decomposition of Multi-Product Requirements Onto Locator Tolerances." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43453.

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The tolerance allocation problem consists of choosing tolerances on dimensions of a complex assembly so that they combine into an ‘optimal state’ while fulfilling certain requirements on an allowed variation. This optimal state often coincides with the minimum manufacturing cost of the product. Sometimes it is balanced with an artificial cost that the deviation from target induces on the quality of the product. This paper suggests a multiobjective formulation of the tolerance allocation problem to automatically decompose requirements for an allowed variation on a set of critical product dimensions. This formulation is demonstrated using a rear lamp on a car with multiple requirements on allowed variation. In this case only the tolerances on locators that locates the lamp on the body are considered. The paper also reviews a selection of work that has been made on solving tolerance allocation problems.
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Jayakaran, Christopher, Ragini Patel, Prashant Momaya, K. Roopesh, Umeshchandra Ananthanarayana, and Gautam Sardar. "Taking the Grunt Work Out of Tolerance Optimization." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95579.

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The activity of tolerance allocation and optimization is a critical step in the product design process. This inherent trade-off between design objectives and process capability poses challenges in achieving right tolerances, both technically and effort-wise. Traditional methods in tolerance allocation are mostly regressive and are constrained by selection of the manufacturing processes. A progressive approach to tolerance allocation that does not assume these processes helps in achieving optimality of the tolerances and selection of manufacturing processes to realize the design. The two-stage process suggested in this paper formulates an optimization problem that allocates the tolerances based on sensitivities of tolerance values at the first stage followed by manufacturing process selection and further optimization to adhere to the processes selected in the second stage. The approach aims at achieving optimal allocation of tolerances and assignment of the manufacturing processes, while keeping the optimization problem computationally simple, although iterative.
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Gadallah, M. H., and H. A. ElMaraghy. "The Tolerance Optimization Problem Using a System of Experimental Design." In ASME 1994 Design Technical Conferences collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/detc1994-0067.

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Abstract A new algorithm for manufacturing tolerance synthesis is proposed. In complex mechanical assemblies, most tolerance analysis and synthesis methods tend to be impractical. In this article, a methodology is proposed to minimize manufacturing cost by tightening important dimensional and/or geometrical tolerances. Analysis of variance and experimental design techniques are used to discriminate among various design dimensions to the overall functional requirement of the mechanical assembly. In this case, some, but not all, design dimensions will be controlled. This paper reviews the state-of-the art in the area of tolerance analysis and synthesis and highlights the contribution of this work.
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Parkinson, Alan, Carl Sorensen, Joseph Free, and Bradley Canfield. "Tolerances and Robustness in Engineering Design Optimization." In ASME 1990 Design Technical Conferences. American Society of Mechanical Engineers, 1990. http://dx.doi.org/10.1115/detc1990-0015.

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Abstract This paper describes a new strategy for incorporating tolerances as part of engineering design optimization. The tolerance problem is defined in a general way that allows for tolerances on all model variables and parameters and includes worst case and statistical analysis. Two methods are described for taking tolerances into account during optimization such that an optimal design will remain feasible despite fluctuations in variables or parameters. Methods are also presented for directly controlling transmitted variation, and a framework for optimal tolerance allocation is proposed.
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Kumar, Abhishek, Lorens Goksel, and Seung-Kyum Choi. "Tolerance Allocation of Assemblies Using Fuzzy Comprehensive Evaluation and Decision Support Processes." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-29023.

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Advancements in manufacturing technology significantly impact the design process. The ability to manufacture assembly components with specific tolerances has increased the need for tolerance allocation. This research proposes a framework that overcomes the drawbacks of the traditional tolerance control methods, and reduces subjectivity by using fuzzy set theory and decision support processes. The combination of fuzzy comprehensive evaluation and conjoint analysis facilitate the reduction of subjectivity in the tolerance control process. The application of the framework is demonstrated with two practical engineering problems. Tolerances are allocated for a clutch assembly and an O-ring seal in an accumulator.
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Khodaygan, S., and M. R. Movahhedy. "Tolerance Analysis of Mechanical Assemblies Based on Fuzzy - Small Degrees of Freedom (F-SDOF) Model." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40889.

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Tolerances naturally generate an uncertain environment for design and manufacturing. In this paper, a novel fuzzy based tolerance representation approach for modeling the variations of geometric features due to dimensional tolerances is presented. The two concepts of fuzzy theory and small degrees of freedom are combined to introduce the fuzzy-small degrees of freedom model (F-SDOF). This model is suitable for tolerance analysis of mechanical assemblies with linear and angular tolerances. The presented method is compatible with the current dimensioning and tolerancing standards. The application of the proposed methodology is illustrated through presenting an example problem.
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Abdi, Hamid, and Saeid Nahavandi. "Minimum Reconfiguration for Fault Tolerant Manipulators." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28536.

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When a robotic manipulator is fault tolerant it is beneficial to study the configurations which tolerate non-catastrophic locked joint failures with a minimum relative change for the joint velocities. This problem is addressed using the properties of the condition number of the Jacobian matrix. The relationship between the faults within the joints of the manipulators and the condition number of the Jacobian matrix is used to introduce the optimal configurations for fault recovery. These optimum configurations require a minimum reconfiguration for fault tolerance of robotics manipulators. Then these configurations are studied for a 4-DOF planar manipulator to validate the proposed framework.
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Krishnaswami, Mukund, and R. W. Mayne. "Optimizing Tolerance Allocation Based on Manufacturing Cost and Quality Loss." In ASME 1994 Design Technical Conferences collocated with the ASME 1994 International Computers in Engineering Conference and Exhibition and the ASME 1994 8th Annual Database Symposium. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/detc1994-0063.

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Abstract This paper describes a procedure for optimizing the allocation of tolerances considering manufacturing cost and product quality in a constrained optimization process. The procedure can utilize various existing models for relating manufacturing costs to part tolerances. It also includes a relationship between part tolerances and assembly tolerance to provide a quantitative measure of product quality using the Taguchi concept of quality loss. The two cost relationships are combined in a formulation which is convenient for solving the optimal tolerance allocation problem by nonlinear programming methods. Numerical optimization can then be directly applied to balance manufacturing cost and product quality allowing trade-offs to be explored.
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Gou, J. B., Y. X. Chu, H. Wu, and Z. X. Li. "A Geometric Theory for Formulation of Form, Profile and Orientation Tolerances: Problem Formulation." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/dfm-5743.

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Abstract This paper develops a geometric theory which unifies the formulation and evaluation of form (straightness, flatness, cylindricity and circularity), profile and orientation tolerances stipulated in ANSI Y14.5M standard. In the paper, based on an an important observation that a toleranced feature exhibits a symmetry subgroup G0 under the action of the Euclidean group, SE(3), we identify the configuration space of a toleranced (or a symmetric) feature with the homogeneous space SE(3)/G0 of the Euclidean group. Geometric properties of SE(3)/G0, especially its exponential coordinates carried over from that of SE(3), are analyzed. We show that all cases of form, profile and orientation tolerances can be formulated as a minimization or constrained minimization problem on the space SE(3)/G0, with G0 being the symmetry subgroup of the underlying feature. We transform the non-differentiable minimization problem into a differentiable minimization problem over an extended configuration space. Using geometric properties of SE(3)/G0, we derive a sequence of linear programming problems whose solutions can be used to approximate the minimum zone solutions.
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Reports on the topic "Probléme of tolerance"

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Meyer, Gerard G., and Howard L. Weinert. Fault Tolerant Parallel Implementations of Iterative Algorithms for Optimal Control Problems. Fort Belvoir, VA: Defense Technical Information Center, January 1988. http://dx.doi.org/10.21236/ada214786.

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Meyer, Gerard G., and Howard L. Weinert. Fault Tolerant Parallel Implementations of Iterative Algorithms for Optimal Control Problems. Fort Belvoir, VA: Defense Technical Information Center, January 1988. http://dx.doi.org/10.21236/ada198041.

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Gamble, K. A., and J. D. Hales. Nuclear Energy Advanced Modeling and Simulation (NEAMS) Accident Tolerant Fuels High Impact Problem: FeCrAl Modeling Capabilities. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1408757.

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Gamble, K. A., J. D. Hales, Y. Zhang, D. Andersson, L. Capolungo, and B. D. Wirth. Nuclear Energy Advanced Modeling and Simulation (NEAMS) Accident Tolerant Fuels High Impact Problem: Coordinate Multiscale FeCrAl Modeling. Office of Scientific and Technical Information (OSTI), July 2017. http://dx.doi.org/10.2172/1376905.

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Gamble, K. A., J. D. Hales, D. M. Perez, and G. Pastore. Nuclear Energy Advanced Modeling and Simulation (NEAMS) Accident Tolerant Fuels High Impact Problem: Engineering Scale Models and Analysis. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1473587.

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Gamble, Kyle A., J. D. Hales, and G. Pastore. Nuclear Energy Advanced Modeling and Simulation (NEAMS) Accident Tolerant Fuels High Impact Problem: U3Si2 Modeling Capabilities. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1484249.

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Gamble, K. A., J. D. Hales, Y. Miao, D. Andersson, and Y. Zhang. Nuclear Energy Advanced Modeling and Simulation (NEAMS) Accident Tolerant Fuels High Impact Problem: Coordinate Multiscale U3Si2 Modeling. Office of Scientific and Technical Information (OSTI), July 2017. http://dx.doi.org/10.2172/1376903.

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