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Prediction of Operating Loads Contribution to Assembly Relation and Product Behavior

Pengzhong Li, Weimin Zhang, Can Chen
2012 Journal of Software  
When product running, operating loads will lead to change of assembly relation of product parts, affecting product behavior.  ...  Based on Jacobian-Torsor method, the Jacobian-Torsor tolerance model, considering contribution of operating loads, was extended and corrected, the assembly error (assembly relation change) resulted from  ...  ACKNOWLEDGMENT The research was done thanks to financial support of the Chinese National Natural Science Foundation project 50675159 "Digital Mockup Based Key Technology of Tolerance Design and Its Impact  ... 
doi:10.4304/jsw.7.2.296-302 fatcat:ik52ixlyend3nlrim2mshyrefy

Energy Consumption and Dynamic Behavior Analysis of a Six-axis Industrial Robot in an Assembly System

Paryanto, Matthias Brossog, Johannes Kohl, Jochen Merhof, Simon Spreng, Jörg Franke
2014 Procedia CIRP  
This paper presents an experimental study to validate a dynamic model of a six-axis industrial robot as part of an assembly system and to analyze its power consumption as well as its dynamic behavior.  ...  Furthermore, the effect of robot operating parameters (i.e., payload and speed) on the power consumption and the dynamic behavior are analyzed.  ...  Acknowledgements This work was supported by the Green Factory Bavaria project EffiPLAS from the Bavarian State Ministry of Education, Sciences and the Arts.  ... 
doi:10.1016/j.procir.2014.10.091 fatcat:3c3bt4oipbcihjnvxq4ymcnbki

A journey from normative to behavioral operations in supply chain management: A review using Latent Semantic Analysis

Anirban Kundu, Vipul Jain, Sameer Kumar, Charu Chandra
2015 Expert systems with applications  
An emerging trend is noticed in the research of behavioral operations in supply chain.  ...  This study aims to systematically review the cross disciplinary literature covering the time period from 1934 to January 2013 on behavioral operations in supply chain in order to identify and define the  ...  It can also be applied to perceived customer behavior and to identify relational vulnerabilities. This will help to improve operations such as customer segmentation.  ... 
doi:10.1016/j.eswa.2014.08.035 fatcat:4n2kkcz55jgdpeczklbnrsrtgi

Prognostics-based product qualification

Michael Pecht, Jie Gu
2009 2009 IEEE Aerospace conference  
The approach does not require a product to fail in the test, because in addition to detecting failure, the health of the product is monitored, including degraded health and intermittent product disruptions  ...  The specified requirements are expected to depend on the final product and its specific life cycle application conditions.  ...  The life cycle loads include assembly-and installation-related loads, environmental loads, and operational loads. These loads can be thermal [16] , mechanical, chemical, physical, or operational.  ... 
doi:10.1109/aero.2009.4839686 fatcat:xybpxlysbjcdlkgcxfvo6it2dq

A review on design, manufacture and mechanics of composite risers

Dinh-Chi Pham, N. Sridhar, Xudong Qian, Adam J. Sobey, Mithila Achintha, Ajit Shenoi
2016 Ocean Engineering  
Therefore there is a need to perform a review and assessment of the available technologies and methodologies in the literature to gain a good understanding of their predictive capabilities, efficiency  ...  Composite risers are predicted to be a high-impact technology that will be mainstream in the medium term but there is still relatively little literature pertaining directly to the behavior of these materials  ...  Acknowledgment Funding support for this work from the Science and Engineering Research Council (SERC) of the Agency of Science, Technology and Research (A*STAR), Singapore is gratefully acknowledged.  ... 
doi:10.1016/j.oceaneng.2015.12.004 fatcat:3tyekvtoa5akhd77gaz2nsuqma

Man, machine and work in a digital twin setup: a case study [article]

Ali Ahmad Malik, Alexander Brem
2020 arXiv   pre-print
This paper explores the opportunities of using a digital twin to address the complexities of collaborative production systems through an industrial case and a demonstrator.  ...  A digital twin, as a virtual counterpart of a physical human-robot assembly system, is built as a front-runner for validation and control through design, build, and operation.  ...  With each change in production parameters new variables are simulated to predict a future behavior.  ... 
arXiv:2006.08760v2 fatcat:t4gsl443m5eexffevrutrxdrte

Screwing process analysis using multivariate statistical process control

Humberto Nuno Teixeira, Isabel Lopes, Ana Cristina Braga, Pedro Delgado, Cristina Martins
2019 Procedia Manufacturing  
Due to its flexibility and versatility, it is considered that this approach can be applied to effectively monitor screwing processes in the assembly of different product types either periodically or in  ...  Considering that the out-of-control signals detected in these periods mainly correspond to delays at the beginning of the tightening operation, four potential causes to explain this behavior were ascertained  ...  The interruption of the torque increase contributes to delay the conclusion of the tightening operation. This can be related to differences between threads.  ... 
doi:10.1016/j.promfg.2020.01.176 fatcat:adv4bk5vafdr5oebg7t34phcy4

The future of manufacturing systems engineering

Stanley B. Gershwin
2017 International Journal of Production Research  
We review MIT research in manufacturing systems engineering, and we describe current and possible future research activities in this area.  ...  This includes advances in decomposition techniques, optimization, token-based control systems analysis, multiple part types, inspection location, data collection and several other topics.  ...  Another use of factory data is for research, to further the understanding and predictability of factory behavior.  ... 
doi:10.1080/00207543.2017.1395491 fatcat:at2vav7vpzaazcso2lrfr3pm7m

Status of ceramic breeder pebble bed thermo-mechanics R&D and impact on breeder material mechanical strength

Alice Ying, Jörg Reimann, Lorenzo Boccaccini, Mikio Enoeda, Marc Kamlah, Regina Knitter, Yixiang Gan, Jaap G. van der Laan, Lida Magielsen, P.A. Di Maio, G. Dell'Orco, Ratna Kumar Annabattula (+3 others)
2012 Fusion engineering and design  
and mechanical properties, and of thermomechanic state of the bed under prototypical operating conditions.  ...  The paper reviews and synthesizes existing computational modeling approaches for pebble bed thermomechanics prediction, and differentiating points of convergence/divergence among existing approaches.  ...  Acknowledgements The authors wish to acknowledge the many researchers whose hard work has contributed to the advancement of this field. The work of compiling this paper was supported by U.S.  ... 
doi:10.1016/j.fusengdes.2012.02.090 fatcat:3fabahoykveg7h42eu6eb6owwu

Summary of the fire protection foundation report - fire safety challenges of tall wood buildings

David Barber, Robert Gerard
2015 Fire Science Reviews  
The study identified a number of knowledge gaps, of which most were related directly to the new technology of engineered timber products that have resulted from the use of CLT.  ...  The study concluded that the priority for future research should target three areas of research, being the contribution of exposed timber to room fires; connections between timber components and timber  ...  This behavior is unique to fire testing of CLT panels and is not apparent in other engineered timber products.  ... 
doi:10.1186/s40038-015-0009-3 fatcat:gmg76xhvyndftfnor7oas64fli

Page 565 of Forest Products Journal Vol. 11, Issue 12 [page]

1961 Forest Products Journal  
how is the mechanical behavior of wood related to its structure, and what factors are most significant for predicting the mechanical behavior of wood under any particular loading conditions.  ...  Basic studies of the time-related mechanical behavior of wood are giving us new and better answers to such questions as why does wood behave differently under impact loading than under static loading,  ... 

STRUCTURAL AND ELASTODYNAMIC ANALYSIS OF ROTARY TRANSFER MACHINES BY FINITE ELEMENT MODEL

Alberto Martini, Marco Troncossi, Nicolo Vincenzi
2017 Journal of the Serbian Society for Computational Mechanics  
This work focuses on a specific family of rotary transfer machines for the manufacturing of parts related to lock&keys industry.  ...  This requires significant efforts and possible conflicts with tight production scheduling of companies.  ...  E28C15000190007, financed by the Operational Programme of the European Regional Development Fund of the Emilia-Romagna Region (ROP-ERDF 2014-2020, DGR 773/2015.  ... 
doi:10.24874/jsscm.2017.11.02.01 fatcat:tppizvcrvrakte4arrc3gxsk2a

Reactors as a Source of Antineutrinos: Effects of Fuel Loading and Burnup for Mixed-Oxide Fuels

Adam Bernstein, Nathaniel S. Bowden, Anna S. Erickson
2018 Physical Review Applied  
In a conventional light water reactor loaded with a range of uranium and plutonium-based fuel mixtures, the variation in antineutrino production over the cycle reflects both the initial core fissile inventory  ...  This rate-only approach also offers the potential advantage of reducing the cost and complexity of the antineutrino detectors used to verify the diversion, compared to methods that depend on the use of  ...  of individual fuel assemblies, or the operator-declared core loading.  ... 
doi:10.1103/physrevapplied.9.014003 fatcat:7qiadijvpjemzap3pgom5vhezu

Improved stability predictions in milling through more realistic load conditions

M. Postel, N.B. Bugdayci, J. Monnin, F. Kuster, K. Wegener
2018 Procedia CIRP  
The aim is to cluster these products in new assembly oriented product families for the optimization of existing assembly lines and the creation of future reconfigurable assembly systems.  ...  Due to this development, the need of agile and reconfigurable production systems emerged to cope with various products and product families.  ...  Acknowledgements The authors would like to thank the Commission for Technology and Innovation (CTI) of the Federal Department of Economic Affairs of Switzerland for the financial support.  ... 
doi:10.1016/j.procir.2018.08.231 fatcat:iwjwkcrinzcnvmlznq6wdgv2tq

A multi-discipline method to assess the human performance in manufacturing industry for safety and quality optimization [chapter]

Lorenzo Comberti, Micaela Demichela, Maria Chiara Leva
2018 Safety and Reliability – Safe Societies in a Changing World  
task to deal with.The prediction of the human performances of all workers involved in a production system would help Managers in better allocating the human resources.  ...  Nowadays the majority of organizations operating in manufacturing field recognize the importance of including the Human Factor contribution in the industrial process optimization (Hong et al. 2007) .  ...  TC is the result of the contribution of two main factors: Mental Workload (MW) and Physical Workload (PW), both associated to a single operative task.  ... 
doi:10.1201/9781351174664-48 fatcat:lzkv72roijesboievevy3k2daa
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