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Publications (10 of 13) Show all publications
Brolin, A., Case, K. & Thorvald, P. (2018). Interaction Effects Affecting Human Performance in Manual Assembly. In: Peter Thorvald, Keith Case (Ed.), Advances in Manufacturing Technology XXXII: Proceedings of the 16th International Conference on Manufacturing Research. Paper presented at 16th International Conference on Manufacturing Research (ICMR), incorporating the 33rd National Conference on Manufacturing Research, September 11–13, 2018, University of Skövde, Sweden (pp. 265-270). Amsterdam, Netherlands: IOS Press
Open this publication in new window or tab >>Interaction Effects Affecting Human Performance in Manual Assembly
2018 (English)In: Advances in Manufacturing Technology XXXII: Proceedings of the 16th International Conference on Manufacturing Research / [ed] Peter Thorvald, Keith Case, Amsterdam, Netherlands: IOS Press, 2018, p. 265-270Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an experimental study aimed at investigating interaction effects affecting personnel in manual assembly. The main experiment with 36 subjects used a mixed method design which included a quantitative study, including time and errors as dependent measures, and a qualitative study, including workload ratings and a questionnaire. The overall task in the experiment was to assemble components on a pedal car. The main factors involved were assembly information (text & component numbers or photographs), material presentation (using structured kits, unstructured kits and material racks) and component variation (situations with and without component variation). It was found that performance, measured in assembly time, was best when combining photographs with no component variants and when using an unstructured kit.

Place, publisher, year, edition, pages
Amsterdam, Netherlands: IOS Press, 2018
Series
Advances in Transdisciplinary Engineering, ISSN 2352-751X, E-ISSN 2352-7528 ; 8
Keywords
manufacturing, information design, ergonomics, kitting, human performance
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
INF202 Virtual Ergonomics; User Centred Product Design
Identifiers
urn:nbn:se:his:diva-16221 (URN)10.3233/978-1-61499-902-7-265 (DOI)978-1-61499-901-0 (ISBN)978-1-61499-902-7 (ISBN)
Conference
16th International Conference on Manufacturing Research (ICMR), incorporating the 33rd National Conference on Manufacturing Research, September 11–13, 2018, University of Skövde, Sweden
Available from: 2018-09-25 Created: 2018-09-25 Last updated: 2018-11-07Bibliographically approved
Brolin, A., Brolin, E. & Högberg, D. (2018). Second cycle education program in virtual ergonomics and design. In: Sebastiano Bagnara, Riccardo Tartaglia, Sara Albolino, Thomas Alexander, Yushi Fujita (Ed.), Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018): Volume VII: Ergonomics in Design. Paper presented at 20th Congress of the International Ergonomics Association (IEA 2018), Florence, August 26-30, 2018 (pp. 1058-1065). Cham: Springer
Open this publication in new window or tab >>Second cycle education program in virtual ergonomics and design
2018 (English)In: Proceedings of the 20th Congress of the International Ergonomics Association (IEA 2018): Volume VII: Ergonomics in Design / [ed] Sebastiano Bagnara, Riccardo Tartaglia, Sara Albolino, Thomas Alexander, Yushi Fujita, Cham: Springer, 2018, p. 1058-1065Conference paper, Published paper (Refereed)
Abstract [en]

Current product and production development tends to become more complex where principal design decisions are made in very early development phases when product data only exist in virtual formats. To support this virtual product realisation process there exist a number of tools and technologies. Considering ergonomics and human factors in an increasingly complex process with often complex tools requires competent people able to handle multidisciplinary development challenges in a proactive manner. To answer the need for educational programs to cover these issues the School of Engineering Science at University of Skövde has developed a new master (second cycle) program Virtual Ergonomics and Design. The aim with the program is to give students and future product and production developers, necessary knowledge and skills to effectively use virtual tools for analysis, development, and verification of ergonomics and integrate ergonomics and user aspects into the product realisation process. This is achieved through a number of courses that partly forms a core within the subject Virtual product realisation but also provides in-depth knowledge in ergonomics. Students will in a possible future role as design or production engineers have a great influence on ergonomics in manufacturing departments but also better perception of ergonomics, higher motivation and knowledge of support tools and methods for ergonomics integration.

Place, publisher, year, edition, pages
Cham: Springer, 2018
Series
Advances in Intelligent Systems and Computing, ISSN 2194-5357, E-ISSN 2194-5365 ; 824
Keywords
Master program, Virtual Ergonomics, Design, Product realisation
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
User Centred Product Design; INF202 Virtual Ergonomics
Identifiers
urn:nbn:se:his:diva-16206 (URN)10.1007/978-3-319-96071-5_108 (DOI)2-s2.0-85052304263 (Scopus ID)978-3-319-96070-8 (ISBN)978-3-319-96071-5 (ISBN)
Conference
20th Congress of the International Ergonomics Association (IEA 2018), Florence, August 26-30, 2018
Note

ING2018kv3

Available from: 2018-09-14 Created: 2018-09-14 Last updated: 2018-11-06Bibliographically approved
Brolin, A., Thorvald, P. & Case, K. (2017). Experimental study of cognitive aspects affecting human performance in manual assembly. Production & Manufacturing Research, 5(1), 141-163
Open this publication in new window or tab >>Experimental study of cognitive aspects affecting human performance in manual assembly
2017 (English)In: Production & Manufacturing Research, ISSN 2169-3277, Vol. 5, no 1, p. 141-163Article in journal (Refereed) Published
Abstract [en]

This study investigate different ways of presenting material and information at workstations while using mixed assembly mode with product variants. The experimental set up annotated an assembly line involving 36 subjects. The material presentation factor involved the use of a material rack compared to using an unstructured kit as well as a structured kit. The information presentation factor involved using a text and number instruction compared to a photograph instruction, and situations with and without component variation were considered. Results show that assembly times and workload ratings were lower when using a kit, whereas using a material rack resulted in perceived decreased workflow and increased stress and frustration. Moreover, assembly times and workload ratings were lower when using photographs, whereas using text and numbers increased mental workload. The results could be useful when planning work places and production systems in order to obtain a better workflow and an increased human performance. 

Keywords
manual assembly, manufacturing, information presentation, material supply, kitting, cognitive workload, human performance
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
User Centred Product Design
Identifiers
urn:nbn:se:his:diva-14170 (URN)10.1080/21693277.2017.1374893 (DOI)000412286800002 ()2-s2.0-85029954849 (Scopus ID)
Available from: 2017-09-27 Created: 2017-09-27 Last updated: 2017-11-27Bibliographically approved
Brolin, A. (2016). An investigation of cognitive aspects affecting human performance in manual assembly. (Doctoral dissertation). Loughborough: Loughborough University
Open this publication in new window or tab >>An investigation of cognitive aspects affecting human performance in manual assembly
2016 (English)Doctoral thesis, monograph (Other academic)
Abstract [en]

Modern manufacturing systems seem to be shifting from mass production to mass customisation, which means that systems must be able to manage changes in customer demands and requirements, new technology as well as environmental demands. This in turn leads to an increase in product variants that need to be assembled. To handle this issue, well designed and presented information is vital for assembly workers to perform effective and accurate assembly tasks. In this thesis the main focus has been to find factors that affect human performance in manual assembly. A literature review was made on the subject of manufacturing and usability as well as basic cognitive abilities used to utilise information, such as memory. This investigation identified applicable factors for assessing human cognitive performance within the research field of manufacturing. The thesis further investigates how some of these factors are handled in manual assembly, using case studies as well as observational studies. The results show that how material and information are presented to the assembler needs to be considered in order to have a positive effect on the assembly operation. In addition, a full factorial experimental study was conducted to investigate different ways of presenting material and information at the workstation while using mixed assembly mode with product variants. The material presentation factor involved the use of a material rack compared to using an unstructured kit as well as a structured kit and the information presentation factor involved using a text and number instruction compared to a photograph instruction. The results showed that using a kit is favourable compared to the traditional material rack, especially when using a structured kit combined with photographic instruction. Furthermore, the use of unstructured kits can lead to better productivity and reduced perceived workload, compared to a material rack. Although they are perhaps not as good as using a structured kit, they most likely bring a lower cost, such as man-hour consumption and space requirements. However, the number of components in an unstructured kit needs to be considered in order to keep it on a manageable level. As a conclusion, several scenarios were developed in order to understand how different assembly settings can be used in order to improve human performance at the assembly workstation.

Place, publisher, year, edition, pages
Loughborough: Loughborough University, 2016. p. 168
Keywords
Cognitive ergonomics, Manual assembly, Manufacturing, Usability, Cognitive workload, Information presentation, Material presentation, Product variants, Kitting
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Technology; User Centred Product Design
Identifiers
urn:nbn:se:his:diva-12946 (URN)978-91-982690-4-8 (ISBN)
Public defence
2016-06-02, Loughborough, UK, 10:00 (English)
Opponent
Supervisors
Available from: 2016-11-21 Created: 2016-09-22 Last updated: 2018-11-15Bibliographically approved
Brolin, A., Case, K. & Thorvald, P. (2016). Cognitive Aspects Affecting Human Performance in Manual Assembly. In: Y. M. Goh & K. Case (Ed.), Yee Mey Goh, Keith Case (Ed.), Advances in Manufacturing Technology XXX: . Paper presented at 14th International Conference on Manufacturing Research (ICMR), Loughborough, United Kingdom, September 6–8, 2016 (pp. 231-236). IOS Press
Open this publication in new window or tab >>Cognitive Aspects Affecting Human Performance in Manual Assembly
2016 (English)In: Advances in Manufacturing Technology XXX / [ed] Yee Mey Goh, Keith Case, IOS Press, 2016, p. 231-236Conference paper, Published paper (Refereed)
Abstract [en]

This paper concerns the handling of information in assembly work environments. Several studies involving both literature reviews, case studies andobservations were conducted to find factors that affect human performance in manual assembly. The main experiment with 36 subjects used a mixed method design with a quantitative study, including time and errors as dependant measures,a qualitative study, including workload ratings, and a questionnaire. The experiment involved the assembly of a pedal car and the components werepresented using structured kits, unstructured kits and material racks. Assembly information was presented as text & component numbers or photographs, and situations with and without component variation were considered. Among theresults it was found that assembly times and workload ratings were lower when using a kit, whereas using a material rack resulted in perceived decreased workflow and increased stress and frustration. Assembly times and workload ratings were lower when using photographs, whereas using text and numbers increased mental workload.

Place, publisher, year, edition, pages
IOS Press, 2016
Series
Advances in Transdisciplinary Engineering, ISSN 2352-751X, E-ISSN 2352-7528 ; 3
Keywords
Cognitive ergonomics, manual assembly, human factors, manufacturing, information design, material presentation, kitting
National Category
Production Engineering, Human Work Science and Ergonomics
Research subject
Technology; User Centred Product Design
Identifiers
urn:nbn:se:his:diva-12945 (URN)10.3233/978-1-61499-668-2-231 (DOI)000383745300038 ()978-1-61499-667-5 (ISBN)978-1-61499-668-2 (ISBN)
Conference
14th International Conference on Manufacturing Research (ICMR), Loughborough, United Kingdom, September 6–8, 2016
Available from: 2016-09-22 Created: 2016-09-22 Last updated: 2018-11-15Bibliographically approved
Hanson, R. & Brolin, A. (2013). A comparison of kitting and continuous supply in in-plant materials supply. International Journal of Production Research, 51(4), 979-992
Open this publication in new window or tab >>A comparison of kitting and continuous supply in in-plant materials supply
2013 (English)In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, Vol. 51, no 4, p. 979-992Article in journal (Refereed) Published
Abstract [en]

In the context of in-plant materials supply, the materials feeding principle of kitting is often discussed as an alternative to the more common continuous supply (also known as line stocking). However, there are few detailed studies describing the relative effects of kitting and continuous supply. The current paper identifies the relative effects of kitting and continuous supply, and provides insight into how these effects arise. The paper draws on empirical data from two case studies in the Swedish automotive assembly industry. In each of the cases, continuous supply has been replaced by kitting, enabling comparison of kitting and continuous supply in the same production environment. The performance areas studied include man-hour consumption, product quality, flexibility, inventory levels, and space requirements. Interviews with production engineers, assemblers, and operators responsible for kit preparation at each company contribute to a broad yet detailed view of the relative effects of the two materials feeding principles.

Place, publisher, year, edition, pages
Taylor & Francis, 2013
Keywords
kitting; continuous supply; in-plant materials supply
National Category
Engineering and Technology
Research subject
Technology
Identifiers
urn:nbn:se:his:diva-5956 (URN)10.1080/00207543.2012.657806 (DOI)000313950400002 ()2-s2.0-84871342180 (Scopus ID)
Available from: 2012-06-07 Created: 2012-06-07 Last updated: 2017-12-07Bibliographically approved
Brolin, A., Bäckstrand, G., Thorvald, P., Högberg, D. & Case, K. (2012). Kitting as an information source in manual assembly. In: Stefan Trzcieliński & Waldemar Karwowski (Ed.), Advances in Ergonomics in Manufacturing: (pp. 346-353). CRC Press
Open this publication in new window or tab >>Kitting as an information source in manual assembly
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2012 (English)In: Advances in Ergonomics in Manufacturing / [ed] Stefan Trzcieliński & Waldemar Karwowski, CRC Press, 2012, p. 346-353Chapter in book (Refereed)
Abstract [en]

In manual assembly, a strategy to meet the goal of efficient production is the increased use of kitting as a material supply principle. Even though kitting is already implemented in industry, there are still uncertainties regarding the effects of introducing kits, particularly from a human factors perspective.

This paper presents initial steps in the development of a method to be used for the evaluation of kitting. This from an information source point of view and for studying effects related to productivity and quality. The methodology is projected to act as a foundation for how to carry out a subsequent comprehensive case study. The purpose of the case study is to explore how kitting affects the cognitive workload compared to the ordinary material rack combined with part numbers used in the current manufacturing industry. This is done by measuring productivity; time spent on assembling a product, and quality; number of assembly errors. One step in the methodology development process, which is described in this paper, was to conduct a pilot study, primarily to test the methodology related to the selection of measurement parameters, as well as for getting experiences from running the methodology with real test subjects.

Place, publisher, year, edition, pages
CRC Press, 2012
Keywords
manual assembly, kitting, cognitive ergonomics, information use
National Category
Mechanical Engineering
Research subject
Technology
Identifiers
urn:nbn:se:his:diva-6433 (URN)978-1-4398-7039-6 (ISBN)
Available from: 2012-10-11 Created: 2012-10-03 Last updated: 2017-11-27Bibliographically approved
Hanson, R. & Brolin, A. (2011). A comparison of kitting and continuous supply in in-plant materials supply. In: Proceedings from the 4th International Swedish Production Symposium. Paper presented at The 4th Swedish Production Symposium 2011 (SPS'11), Lund University, Sweden, 3 - 5 May 2011 (pp. 312-321).
Open this publication in new window or tab >>A comparison of kitting and continuous supply in in-plant materials supply
2011 (English)In: Proceedings from the 4th International Swedish Production Symposium, 2011, p. 312-321Conference paper, Published paper (Refereed)
National Category
Engineering and Technology
Identifiers
urn:nbn:se:his:diva-7415 (URN)
Conference
The 4th Swedish Production Symposium 2011 (SPS'11), Lund University, Sweden, 3 - 5 May 2011
Available from: 2013-03-12 Created: 2013-03-12 Last updated: 2017-11-27
Brolin, A., Bäckstrand, G., Högberg, D. & Case, K. (2011). Inadequate presented information and its effect on the cognitive workload. In: Geraghty, J & Young, P (Ed.), Manufacturing Sustainability: Proceedings of the 28th International Manufacturing Conference (IMC 28). Paper presented at Twenty-eighth International Manufacturing Conference, IMC 28, Dublin City University, Dublin, Ireland (pp. 121-129).
Open this publication in new window or tab >>Inadequate presented information and its effect on the cognitive workload
2011 (English)In: Manufacturing Sustainability: Proceedings of the 28th International Manufacturing Conference (IMC 28) / [ed] Geraghty, J & Young, P, 2011, p. 121-129Conference paper, Published paper (Refereed)
Identifiers
urn:nbn:se:his:diva-7086 (URN)
Conference
Twenty-eighth International Manufacturing Conference, IMC 28, Dublin City University, Dublin, Ireland
Available from: 2013-01-30 Created: 2013-01-30 Last updated: 2017-11-27
Harlin, U., Bäckstrand, G., Fässberg, T., Brolin, A. & Gullander, P. (2011). Production complexity and its impact on manning. In: J. Geraghty, P. Young (Ed.), Manufacturing Sustainability: Proceedings of the 28th International Manufacturing Conference (IMC 28). Paper presented at Twenty-eighth International Manufacturing Conference, IMC 28, Dublin City University, Dublin, Ireland, 30th August - 1st September 2011.
Open this publication in new window or tab >>Production complexity and its impact on manning
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2011 (English)In: Manufacturing Sustainability: Proceedings of the 28th International Manufacturing Conference (IMC 28) / [ed] J. Geraghty, P. Young, 2011Conference paper, Published paper (Refereed)
Keywords
production system, man-hour planning, management
Identifiers
urn:nbn:se:his:diva-7087 (URN)
Conference
Twenty-eighth International Manufacturing Conference, IMC 28, Dublin City University, Dublin, Ireland, 30th August - 1st September 2011
Available from: 2013-01-30 Created: 2013-01-30 Last updated: 2018-08-30Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-2915-8923

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