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Relevant bibliographies by topics / Calculation of tolerances

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Academic literature on the topic 'Calculation of tolerances'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Calculation of tolerances"

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G V, Madhavi Reddy, and Sreenivasulu Reddy A. "Assembly Gap Tolerance Calculation Using ANFIS and Cost Function Optimization." International Journal for Research in Applied Science and Engineering Technology 10, no. 2 (2022): 1111–17. http://dx.doi.org/10.22214/ijraset.2022.40460.

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Abstract: Tolerance plays a crucial role in the quality of a product. When different parts of an assembly are assembled, gap arises due to variation in dimensions. The tolerance for the gap is calculated using two methodologies: ANFIS and cost function optimization. In ANFIS the network is trained using mean dimensions, standard deviations as inputs and tolerances as output. The tolerances are predicted from the trained network. In cost function optimization, a cost function is formulated. The machinability of a part is calculated using Fuzzy Comprehensive Evaluation method. The tolerances are

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Nurlaily Charea, Wanda, and Nafisatus Sania Irbah. "Analysis of Volume Calculations for Clay Mining Excavation Plans Using The Surface to Surface Method." IOP Conference Series: Earth and Environmental Science 1418, no. 1 (2024): 012076. https://doi.org/10.1088/1755-1315/1418/1/012076.

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Abstract Calculating the volume of excavation is generally a large and complex problem for a project in an industry. This is because the accuracy of the volume calculation affects the project budget for the project provider. Calculating the excavation volume is important aspect of mine planning since it serves as a guide for hitting production goals in terms of both profit and technical success. The method commonly used in calculating excavation volume is surface to surface. To overcome this problem, a method or technique is needed to calculate the excavation volume that can provide accurate c

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Masyagin, Vasily, Ruslan Bazhenov, and Roman Artyukh. "Calculation of linear technological dimensions with adaptation." MATEC Web of Conferences 224 (2018): 01072. http://dx.doi.org/10.1051/matecconf/201822401072.

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Technological dimensional calculations are a necessary stage of engineering process and allow to determine machining allowance. The problem is that, when processing hard-to-treat materials on NC machines, it is necessary to provide optimal processing conditions for each workpiece based on reliable information on allowances at each operation. However, according to the existing methodology for calculation of technological dimensions and, accordingly, allowances, for the hypothetical workpiece with wide dimensional tolerances the technological dimensions and allowances are determined once, while

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Shkrabak, V. S., and N. I. Dzhabborov. "Probabilistic-statistical method for determining ergonomic tolerances of machine-tractor units with a gas-turbine engine." Traktory i sel hozmashiny 85, no. 1 (2018): 68–73. http://dx.doi.org/10.17816/0321-4443-66406.

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The justification and usage of tolerances for ergonomic parameters ensure safety and improve the conditions and safety of operators of machine-tractor units. The subject of the investigation is a development of the mathematical models for a determination of the ergonomic parameters of machine-tractor units with gas-turbine engines. The aim of the investigations is a development of the probabilistic-statistical method for a determination of the ergonomic tolerances of machine-tractor units equipped with gas turbine engines. The novelty of the researches consists in the developed mathematical mo

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Shilyaev, Sergey, Evgeniy Slashchev, Vladimir Osetrov, Igor Voyachek, and Rinat Shaikhov. "Determination of the parameters of typical multi-link dimensional chains (closing link is tension) using recurrent dependencies." MATEC Web of Conferences 329 (2020): 03015. http://dx.doi.org/10.1051/matecconf/202032903015.

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The existing approach to the use of the group interchangeability method during assembly, which are concentrated, has a number of significant drawbacks: 1) there are no formulas for calculating the upper and lower deviations of the component parts of the dimensional chain; 2) deviations are selected without taking into account the design of the component links (the method of equal tolerances is used); 3) the method is applicable for the number of links no more than three with a small number of groups. For other types of problems there is no algorithm, mathematical apparatus, and examples of cal

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Jolly, David, Leon Dunn, and John Kenny. "A clinical database to assess action levels and tolerances for the ongoing use of Mobius3D." Journal of Applied Clinical Medical Physics 18, no. 1 (2016): 59–65. http://dx.doi.org/10.1002/acm2.12009.

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AbstractIn radiation therapy, calculation of dose within the patient contains inherent uncertainties, inaccuracies, limitations, and the potential for random error. Thus, point dose‐independent verification of such calculations is a well‐established process, with published data to support the setting of both action levels and tolerances. Mobius3D takes this process one step further with a full independent calculation of patient dose and comparisons of clinical parameters such as mean target dose and voxel‐by‐voxel gamma analysis. There is currently no published data to directly inform toleranc

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Priya, Jacob. "Commissioning of the Mobius3D Independent Dose Verification System for Linear Accelerator." International Journal of Leading Research Publication 3, no. 6 (2022): 1–8. https://doi.org/10.5281/zenodo.14769786.

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Ensuring the accuracy of radiation therapy treatment plans is essential for patient safety and treatment efficacy and a secondary independent dose verification is an important for quality control. Mobius3D utilizes reference beam data and a collapsed cone convolution algorithm to calculate three-dimensional (3D) patient dose and automatically analyze dose-volume histograms. To verify its accuracy, we compared Mobius3D calculations with ion chamber measurements in an RW3 Slab Phantom for 50 helical intensity-modulated radiation therapy (IMRT) plans,1 yielding an average dose difference ratio of

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Cao, Shu Kun, Zhao Qian Li, Qing Gao, and Jing Xu. "Tolerance Optimal Design System Development and Application Based on UG Quick Stack Module." Applied Mechanics and Materials 10-12 (December 2007): 801–5. http://dx.doi.org/10.4028/www.scientific.net/amm.10-12.801.

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Computer-aided design tolerances (CADT) technology got far behind the CAD, CAPP, CAM etc, although there are many commercial tolerance software, but the tolerance optimal design still can’t be completed, which seriously affects the CAX technology's integral roles. Based on the tolerance computation function of the UG Quick Stack module, this paper accomplishes the product assembly relation modeling, tolerance distribution, locked circle calculation and so on, achieves the optimal design tolerance of whole product.

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Brahmia, Allaoua, Adlen Kerboua, Ridha Kelaiaia, and Ameur Latreche. "Tolerance Synthesis of Delta-like Parallel Robots Using a Nonlinear Optimisation Method." Applied Sciences 13, no. 19 (2023): 10703. http://dx.doi.org/10.3390/app131910703.

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Robotic systems require high accuracy in manipulating objects. Positioning errors are influenced by geometric tolerances and various sources. This paper introduces a new technique based on the interior-point algorithm optimisation method to allocate tolerances to the geometric parameters of a robot. This method consists of three steps. First, a method for modelling the kinematic problem as well as the geometric errors must be used. The Denavit–Hartenberg rule is the most suitable method for this modelling case. Then, a mathematical model for tolerance allocation is developed and used as a nonl

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GRUNER, GLENN. "CALCULATION OF Cpk UNDER CONDITIONS OF VARIABLE TOLERANCES." Quality Engineering 3, no. 3 (1991): 281–91. http://dx.doi.org/10.1080/08982119108918858.

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Dissertations / Theses on the topic "Calculation of tolerances"

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Raghuraman, Niranjan Pinayur. "A Calculation Procedure to Account for Tolerances, Transient Temperature and Humidity in the Load Distribution Analysis of Plastic and Metal Gears." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1374078836.

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Pietsch, Karsten, and Nikolaos Lengas. "Statistische Tolerierung mit der Multiziel - Konstruktionsstudie und flexiblen parametrischen Komponenten im CAD-System Creo." Technische Universität Chemnitz, 2019. https://monarch.qucosa.de/id/qucosa%3A34094.

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Bei der Fertigung mechatronischer Produkte in den vielfältigen Industriebranchen, wie der Medizintechnik, dem Maschinen- und Automobilbau etc., bestehen stets erhöhte Qualitätsansprüche, um Funktionalität, Herstellbarkeit, Kosten und weitere produktbedingte Aspekte zu gewährleisten. Infolgedessen hat das Toleranzmanagement erheblich an Bedeutung gewonnen. Die Art und Weise der Toleranzfestlegung im Entwicklungsprozess eines Produktes stellt einen wesentlichen Bestandteil der Produktbeschreibung dar und hat eine signifikante Auswirkung auf die Optimierung der Funktion, der Kosten oder der Herst

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Woo, Hin Kyeol. "Multiscale fractality with application and statistical modeling and estimation for computer experiment of nano-particle fabrication." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45819.

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The first chapter proposes multifractal analysis to measure inhomogeneity of regularity of 1H-NMR spectrum using wavelet-based multifractal tools. The geometric summaries of multifractal spectrum are informative summaries, and as such employed to discriminate 1H-NMR spectra associated with different treatments. The methodology is applied to evaluate the effect of sulfur amino acids. The second part of this thesis provides essential materials for understanding engineering background of a nano-particle fabrication process. The third chapter introduces a constrained random effect model. Since

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Duchoň, Peter. "Analýza spoje křídlo-trup letounu L 410 NG z hlediska filozofie konstrukce s přípustným poškozením." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231189.

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Master's thesis deals with the damage tolerance analysis of wing-to-fuselage joint of L 410 NG airplane. Thesis includes determination of the load distribution to the individual attachments of wing-to-fuselage joint, residual strength analysis and residual fatigue life analysis of the most loaded attachment lugs, calculation of fatigue crack growth curves in the attachment solids and inspection program proposal. This analysis was performed using FE model of the wing and central part of the fuselage and AFGROW software.

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Books on the topic "Calculation of tolerances"

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Roberts, A. A method for the calculation of tolerances for display primary chromaticity coordinates. British Broadcasting Corporation Research and Development Department, 1995.

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Book chapters on the topic "Calculation of tolerances"

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Kirschling, Günter. "Statistical Calculation of Tolerances of Individual Values with Rectangular Distributions." In Quality Assurance and Tolerance. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-48689-0_10.

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Kirschling, Günter. "Probability Calculation." In Quality Assurance and Tolerance. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-48689-0_3.

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Kirschling, Günter. "Tolerance Calculation Using Square Law." In Quality Assurance and Tolerance. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-48689-0_9.

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Kirschling, Günter. "Statistical Tolerance Calculation of Individual Values with Trapezoid Distribution or with Triangular Distribution." In Quality Assurance and Tolerance. Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-48689-0_11.

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Lewis, Richard, and Buffy Hudson-Curtis. "Calculating Statistical Tolerance Intervals Using SAS." In Case Studies in Bayesian Methods for Biopharmaceutical CMC. Chapman and Hall/CRC, 2022. http://dx.doi.org/10.1201/9781003255093-14.

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Ke, Jinlin, Xiongfei Lv, and Cuncun Jiang. "Tolerance Analysis Method of Aircraft Door Sealing Structure Based on Linear Simplified Model." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_100.

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AbstractAs a moving component of the aircraft, the sealing state of the door will directly affect the aircraft's pressurization level and aerodynamic performance. The existing analysis methods of sealing structures mainly consider the compression deformation and contact stress of the seals. However, in practical engineering applications, it has been found that the sealing performance of cabin door depends on the interaction between the sealing structure and the seal. On the one hand, the tolerance fluctuation and elastic deformation of the sealing structure will cause the deviation between the

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Zhu, Zhanwang, and Song Deng. "Intrusion Tolerance Quantitative Calculation for Energy Internet Data." In Communications in Computer and Information Science. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-7946-0_16.

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Fischer, Marc, Oliver Riedel, and Armin Lechler. "Comprehensive Analysis of Software-Based Fault Tolerance with Arithmetic Coding for Performant Encoding of Integer Calculations." In Lecture Notes in Computer Science. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-14835-4_10.

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Le Thi Thu, Thuy, Trung Trang Thanh, Huu-Thang Nguyen, and Long Pham Thanh. "About a Viewpoint of Calculating Spatial Dimensional Tolerance Chains According to Structure Group of a Parallel Robot." In Advances in Engineering Research and Application. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-64719-3_15.

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Zhang, G., and M. Porchet. "Automatic calculation of dimensions and tolerances in manufacturing." In Robotics, Mechatronics and Manufacturing Systems. Elsevier, 1993. http://dx.doi.org/10.1016/b978-0-444-89700-8.50110-x.

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Conference papers on the topic "Calculation of tolerances"

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Gatti, Jean-Loup, Hugo Anthonioz, David Dayan, and Pierre Fruitet. "System Installation Disparity Between Theory and Practice." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1126.

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When the target value of functional geometrical specification is too tight, its cascade of tolerances is at the feasibility limit of production. In this case, the geometrical Tolerancing method loses its benefits and generates an excessive level of non-Conformity which induces additional costs that are not acceptable. The aim of this paper is first to introduce the background concerning chain of dimension method and tolerances capabilities based on test specimen results. Secondly, demonstrate ability to apply statistical calculation. Thirdly extend conventional chain of dimension in one dimens

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Westwood, Stephen, and Phil Hopkins. "Smart Pigs and Defect Assessment Codes: Completing the Circle." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04156.

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Abstract Smart pigs are used extensively as part of integrity management plans for oil and gas pipelines to detect metal loss defects, with magnetic flux leakage (MFL) technology being the most-widely used. The MFL signal gives an inferred defect size, not a direct measurement: when the signal is translated into a defect size, it has associated sizing tolerances and confidence levels. The complexity of signal analysis means that these sizing tolerances and confidence levels are difficult to determine and apply in practice. They have a major effect when assessing the significance of the defect,

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Ceglarek, Dariusz J., and Jianjun Shi. "Tolerance Analysis for Sheet Metal Assembly Using a Beam-Based Model." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0015.

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Abstract The tolerance study is one of the most critical and neglected issues in sheet metal assembly manufacturing research. The fundamental shortcoming of currently existing tolerancing methods is the lack of physical significance of the model. This paper presents a new tolerance analysis methodology for sheet metal assembly based on physical/functional modeling of the fabrication error using the developed beam-based model. The modeling method includes principles of decoupling automotive parts into beam members, modeling of beam-to-beam joint geometry, and identification of part locating poi

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Hørte, Torfinn, Arne Fjeldstad, Anders Wormsen, Ragnhild Birgitte Hidle Kalvig, and Espen Berg. "A Practical Summation Method of Tolerances for Misalignment and SCF Calculation for Girth Welds." In ASME 2024 43rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2024. http://dx.doi.org/10.1115/omae2024-127293.

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Abstract In conventional fatigue analysis of girth welds of risers and pipelines, misalignment with corresponding estimates of stress concentration factors need consideration. This is most important for cracks starting from the weld toe. The three most important sources for the misalignment are: i) diameter tolerances, ii) out-of-roundness (or ovality) tolerances and iii) thickness tolerances. In fatigue analysis of subsea wellhead systems, the most fatigue utilized girth welds are usually between machined components such as the wellhead or conductor housing and extension pipes or between two

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Abdushukurov, Dmitriy. "Development of algorithm for tolerances calculation in accelerator systems." In 2015 International Conference "Stability and Control Processes" in Memory of V.I. Zubov (SCP). IEEE, 2015. http://dx.doi.org/10.1109/scp.2015.7342079.

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Söderberg, Rikard. "CATI: A Computer Aided Tolerancing Interface." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0161.

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Abstract This work presents an interface for tolerance analysis in a CAD system. A method for picking up necessary information from a 2D drawing is developed and implemented as an interface in a commercial CAD system. The interface communicates with an external calculation program which determines unknown tolerance limits using the normal distribution model. Results from the calculation program is in the end used by the interface to present measures with tolerances on the drawing. The advantage of using CATI in preliminary design is discussed, and a strategy for treating interrelated tolerance

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Budinoff, Hannah D., Sara McMains, and Alberto Rinaldi. "An Interactive Manufacturability Analysis and Tolerance Allocation Tool for Additive Manufacturing." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86344.

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Geometric tolerances for new products are sometimes assigned without specific knowledge of the cost or feasibility of manufacturing them to the assigned tolerances, which can significantly drive up production costs and lead to delays and design revisions. We present an interactive tool that quickly estimates the manufacturability of assigned tolerances for additive manufacturing and a compact visualization to present this information to the designer. The designer can use the system to explore feasible build orientations and then adjust specified tolerance limits if all tolerances are not simul

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Balan, Nikita, Vladimir Ivanov, Alexander Pankratov, and Ekaterina Kharchenko. "METHOD FOR CALCULATION OF MASK SPECIFICATION CONTRIBUTION TO LITHOGRAPHIC BUDGETS." In International Forum “Microelectronics – 2020”. Joung Scientists Scholarship “Microelectronics – 2020”. XIII International conference «Silicon – 2020». XII young scientists scholarship for silicon nanostructures and devices physics, material science, process and analysis. LLC MAKS Press, 2020. http://dx.doi.org/10.29003/m1653.silicon-2020/372-374.

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In this work we consider the contribution of tolerances on the mask pattern quality to the error budgets of lithographic operations. A method for developing a photomask specification based on the lithography modeling is proposed.

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Jiang, Huilin, and Gongde Li. "Calculation Of MTF Differentiation To Structure Parameters And Tolerances Of Optical System." In 32nd Annual Technical Symposium, edited by Robert E. Fischer and Warren J. Smith. SPIE, 1989. http://dx.doi.org/10.1117/12.948026.

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Savelov, N. S., S. A. Grechany, and I. S. Lebedev. "New algorithms for calculation of tolerances, selection of measurable currents and diagnostics." In 2017 2nd International Ural Conference on Measurements (UralCon). IEEE, 2017. http://dx.doi.org/10.1109/uralcon.2017.8120736.

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Reports on the topic "Calculation of tolerances"

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Netid, Mihai. EXPANSION-DEFORMATION JOINTS CALCULATION SYSTEMS FOR BRIDGES WITH SIMPLY SUPPORTED SUPERSTRUCTURES, ADMISSIBLE TOLERANCES. Intellectual Archive, 2019. http://dx.doi.org/10.32370/iaj.2075.

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Yoosef-Ghodsi and Zimmerman. L51879 Effect of Y-T Ratio on Mechanical Damage Tolerance for Strain-Limit Pipeline Design. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0011057.

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This work investigates the effect of the yield-to-tensile strength ratio (Y/T) has on the mechanical damage tolerances of steel pipelines subject to high strain loading conditions. The work includes full-scale tests and the development of an analytical model for calculating longitudinal tensile strain capacity. The tests were designed to simulate the type of loading that occurs in a pipeline subjected to a �significant ground movement event, and they involved pressurized tension tests on short, full pipe sections that contained artificially-manufactured, circumferentially-oriented dent-gouge d

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Willson. L51756 State of the Art Intelligent Control for Large Engines. Pipeline Research Council International, Inc. (PRCI), 1996. http://dx.doi.org/10.55274/r0010423.

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Computers have become a vital part of the control of pipeline compressors and compressor stations. For many tasks, computers have helped to improve accuracy, reliability, and safety, and have reduced operating costs. Computers excel at repetitive, precise tasks that humans perform poorly - calculation, measurement, statistical analysis, control, etc. Computers are used to perform these type of precise tasks at compressor stations: engine / turbine speed control, ignition control, horsepower estimation, or control of complicated sequences of events during startup and/or shutdown. For other task

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