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Isaksson, Ove
Publications (10 of 33) Show all publications
Marti Bigorra, A. & Isaksson, O. (2017). Combining customer needs and the customer’s way of using the product to set customer-focused targets in the House of Quality. International Journal of Production Research, 55(8), 2320-2335
Open this publication in new window or tab >>Combining customer needs and the customer’s way of using the product to set customer-focused targets in the House of Quality
2017 (English)In: International Journal of Production Research, ISSN 0020-7543, E-ISSN 1366-588X, Vol. 55, no 8, p. 2320-2335Article in journal (Refereed) Published
Abstract [en]

An increasing number of products are equipped with software and sensors. This suggests that, in order to deliver more customised performance, future products will be developed to accommodate systems that supply information on how these products are used. Today, information on the customer’s way of using a product is seldom factored into product design, but the opportunities for making use of it are increasing dramatically due to the amount of available data that can be logged. The proposed methodology is to formulate Customer Needs at a detailed level to be able to link customer satisfaction with a clear interface to the Design Requirements. These links are obtained by combining information acquired by means of surveys, among other methodologies, as well as usage data from customer products. The method is based on the planning House of Quality and also takes cost and risk into consideration. Risk is estimated using the Analytical Hierarchy Process, whereby a hierarchy of the most relevant customer information is constructed to make designers aware of how customer-focused the design process is. To validate the proposed methodology an illustrative example is presented. Results show that the method provides valuable information that enables the company to remain customer-focused during the whole process but also when strategic decisions on price and product launch are made.

Place, publisher, year, edition, pages
Taylor & Francis, 2017
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-59918 (URN)10.1080/00207543.2016.1238114 (DOI)000398964300012 ()2-s2.0-84991272590 (Scopus ID)
Note

Validerad; 2017; Nivå 2; 2017-04-06 (rokbeg)

Available from: 2016-10-24 Created: 2016-10-24 Last updated: 2019-01-23Bibliographically approved
Marti Bigorra, A. & Isaksson, O. (2016). Integration of customer-product interaction into Quality Function Deployment. In: ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference: . Paper presented at 28th International Conference on Design Theory and Methodology Charlotte, North Carolina, USA, August 21–24, 2016. New York: ASME Press, 7, Article ID DETC2016-59992.
Open this publication in new window or tab >>Integration of customer-product interaction into Quality Function Deployment
2016 (English)In: ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, New York: ASME Press, 2016, Vol. 7, article id DETC2016-59992Conference paper, Published paper (Refereed)
Abstract [en]

Customer satisfaction is used by many companies as a keyperformance indicator and it is strategically important to be ableto define design requirements that contribute to customer satisfaction when setting targets. For highly complex products such as vehicles, target setting is an evolving process based on continually changing internal and external requirements. Quality Function Deployment (QFD) is a method that provides a structured approach for incorporating customer needs into the product development process. However, in addition to product targets, product usage proficiency also contributes to customer satisfaction. Customers often do not read manuals; they learn by trying things out and sometimes the use of the product ends up outside the expected acceptable range of the designers, delivering to the customer low product performance. The intention of this article is therefore to gain a deeper understanding of the customer by analyzing customer-product interaction of customer products and integrating it into QFD to identify the most interesting design requirements to improve customer satisfaction when developing products that are comparable to the ones launched in the market. The proposed method facilitates designer awareness of target population before re-designing an existing product and it helps designers to set a starting point to improve usage proficency for each customer by providing individualized feedback.

Place, publisher, year, edition, pages
New York: ASME Press, 2016
Keywords
Customer satisfaction, target setting, usage proficiency, Quality Function deployment, QFD, customerproduct interaction, design process
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-60178 (URN)10.1115/DETC2016-59992 (DOI)000393001500024 ()2-s2.0-85007349518 (Scopus ID)9780791850190 (ISBN)
Conference
28th International Conference on Design Theory and Methodology Charlotte, North Carolina, USA, August 21–24, 2016
Available from: 2016-11-07 Created: 2016-11-07 Last updated: 2019-01-23Bibliographically approved
Isaksson, O. & Karlsson, A. (2011). Identification and anchoring of customer requirements based on a customer questionnaire and an in-house survey (ed.). In: (Ed.), Carmen Jaca (Ed.), Proceedings QMOD Conference on Quality and Service Sciences 2011: 14th QMOD Conference 29st – 31st August, 2011, San Sebastian, Spain : From LearnAbility & InnovAbility to SustainAbility. Paper presented at QMOD Conference on Quality and Services Sciences : 29/08/2011 - 31/08/2011 (pp. 949-958). : Servicios de Publicaciones Universidad de Navarra
Open this publication in new window or tab >>Identification and anchoring of customer requirements based on a customer questionnaire and an in-house survey
2011 (English)In: Proceedings QMOD Conference on Quality and Service Sciences 2011: 14th QMOD Conference 29st – 31st August, 2011, San Sebastian, Spain : From LearnAbility & InnovAbility to SustainAbility / [ed] Carmen Jaca, Servicios de Publicaciones Universidad de Navarra , 2011, p. 949-958Conference paper, Published paper (Other academic)
Place, publisher, year, edition, pages
Servicios de Publicaciones Universidad de Navarra, 2011
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-35751 (URN)a68055aa-ebb4-4247-86fb-796dd91d9ba9 (Local ID)84‐8081‐211‐7 (ISBN)a68055aa-ebb4-4247-86fb-796dd91d9ba9 (Archive number)a68055aa-ebb4-4247-86fb-796dd91d9ba9 (OAI)
Conference
QMOD Conference on Quality and Services Sciences : 29/08/2011 - 31/08/2011
Note
Godkänd; 2011; 20120102 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Isaksson, O. & Karlsson, A. (2011). Product configuration using design for mode of application (ed.). Paper presented at International Conference on Innovative Technologies : 01/09/2011 - 02/09/2011. Paper presented at International Conference on Innovative Technologies : 01/09/2011 - 02/09/2011.
Open this publication in new window or tab >>Product configuration using design for mode of application
2011 (English)Conference paper, Oral presentation only (Other academic)
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-35865 (URN)a91ed1f2-51f8-4b65-b8bb-509b74f71bf3 (Local ID)a91ed1f2-51f8-4b65-b8bb-509b74f71bf3 (Archive number)a91ed1f2-51f8-4b65-b8bb-509b74f71bf3 (OAI)
Conference
International Conference on Innovative Technologies : 01/09/2011 - 02/09/2011
Note
Godkänd; 2011; 20120102 (ovei)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Löfstrand, M. & Isaksson, O. (2010). A process modelling and simulation approach for business decision support in pre-conceptual product design (ed.). Paper presented at . International Journal of Product Development, 12(2), 158-175
Open this publication in new window or tab >>A process modelling and simulation approach for business decision support in pre-conceptual product design
2010 (English)In: International Journal of Product Development, ISSN 1477-9056, E-ISSN 1741-8178, Vol. 12, no 2, p. 158-175Article in journal (Refereed) Published
Abstract [en]

This paper discusses creation of a support tool (SIMULINK model) for collaborative work process modelling and optimisation based on Simulation Driven Design (SDD). The purpose is to improve the studied company's ability to develop hardware-based services in an early concept stage, and to predict performance of a given service scenario before development. The approach is useful as a decision-support tool in evaluating and prioritising business offers and activities in the business offer process. The modelling and simulation approach minimises the cost of each concept and allows simulation of a number of different concepts before the actual work is carried out

National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-5797 (URN)10.1504/IJPD.2010.034994 (DOI)2-s2.0-77956247403 (Scopus ID)3fba1310-5110-11df-a0f4-000ea68e967b (Local ID)3fba1310-5110-11df-a0f4-000ea68e967b (Archive number)3fba1310-5110-11df-a0f4-000ea68e967b (OAI)
Projects
Fastelaboratoriet - VINNEXC
Note
Validerad; 2010; 20100426 (maglof)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Isaksson, O. (2010). Particle counter and neural network used to detect sliding wear and pitting in a radial hydraulic motor (ed.). Paper presented at . International Journal of Fluid Power, 11(2), 5-13
Open this publication in new window or tab >>Particle counter and neural network used to detect sliding wear and pitting in a radial hydraulic motor
2010 (English)In: International Journal of Fluid Power, ISSN 1439-9776, Vol. 11, no 2, p. 5-13Article in journal (Refereed) Published
Abstract [en]

A particle counter was used to detect sliding wear and pitting in a low-speed hydraulic motor. The features used by a neural network were accumulated mass, number of particles and time above threshold. The diagnostic tool was experimentally evaluated by collecting data from a test rig running under heavy-duty conditions in a laboratory.Accumulated time above a threshold value seems to be an adequate feature to detect severe damage to a low speed motor at constant operating conditions. Using a neural network to combine the three features gives earlier and more reliable detection of which wear mode is prevailing than when only using the features singly.

National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-5190 (URN)33a9a800-020a-11e0-9633-000ea68e967b (Local ID)33a9a800-020a-11e0-9633-000ea68e967b (Archive number)33a9a800-020a-11e0-9633-000ea68e967b (OAI)
Note
Validerad; 2010; 20101207 (ovei)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Tuomas, R. & Isaksson, O. (2009). Measurement of lubrication conditions in a rolling element bearing in a refrigerant environment (ed.). Industrial Lubrication and Tribology, 61(2-3), 91-99
Open this publication in new window or tab >>Measurement of lubrication conditions in a rolling element bearing in a refrigerant environment
2009 (English)In: Industrial Lubrication and Tribology, ISSN 0036-8792, E-ISSN 1758-5775, Vol. 61, no 2-3, p. 91-99Article in journal (Refereed) Published
Abstract [en]

Purpose - The ability to build up a film thickness separating the contacts in the bearing is essential to assure long service life of rolling element bearings. Rolling element bearings used in refrigeration suffer from poor film thickness due to decreased viscosity of the lubricant by the dilution of refrigerant in the oil. The purpose of this paper is to redesign a bearing test apparatus equipped with a capacitance measuring device able to monitor the lubrication status in the bearing online and include experiments to verify the capacitance measuring technique. Design/methodology/approach - The objective is to design a complete system to study film build up in rolling element bearings in a refrigerant environment and to use and evaluate the capacitance/resistance measuring technique.Findings - The investigation shows good correlation between denting on tested bearings and the identified contacts by the capacitance measuring apparatus. The method is also useful when studying lift-off or run-in of a bearing.Originality/value - in this paper, a bearing test apparatus is redesigned and equipped with a capacitance measuring device

National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear) Other Mechanical Engineering
Research subject
Machine Elements; Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-14776 (URN)10.1108/00368790910940419 (DOI)000266355400007 ()2-s2.0-67649158829 (Scopus ID)e335cb50-572a-11de-9f57-000ea68e967b (Local ID)e335cb50-572a-11de-9f57-000ea68e967b (Archive number)e335cb50-572a-11de-9f57-000ea68e967b (OAI)
Note

Validerad; 2009; 20090612 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Tuomas, R. & Isaksson, O. (2007). The effect of phosphate additives on the lubrication of rolling element bearings in a refrigerant environment (ed.). International journal of refrigeration, 30(1), 28-36
Open this publication in new window or tab >>The effect of phosphate additives on the lubrication of rolling element bearings in a refrigerant environment
2007 (English)In: International journal of refrigeration, ISSN 0140-7007, E-ISSN 1879-2081, Vol. 30, no 1, p. 28-36Article in journal (Refereed) Published
Abstract [en]

Chlorine free replacement refrigerants, HFC (hydrofluorocarbons) and HC (hydrocarbons), have shown less lubricating properties. Phosphate based additives were used to improve the lubricity with refrigerant R-134a, demonstrating positive effects. In the present paper, the ability to form lubricating film and wear of two additives, phosphate ester and acid phosphate, was investigated in a bearing test apparatus. The results show that phosphate additive in polyolester oil, in an R-134a environment, increases the lubricating film and reduce wear. Surface topography during the initial run-in changes to a more favorable profile with lower RMS angle and longer wavelengths that promote load-carrying capacity and film build-up.

National Category
Other Mechanical Engineering Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Computer Aided Design; Machine Elements
Identifiers
urn:nbn:se:ltu:diva-9754 (URN)10.1016/j.ijrefrig.2006.03.015 (DOI)000243287400004 ()2-s2.0-33845198973 (Scopus ID)86da7e60-f4ac-11db-ac9f-000ea68e967b (Local ID)86da7e60-f4ac-11db-ac9f-000ea68e967b (Archive number)86da7e60-f4ac-11db-ac9f-000ea68e967b (OAI)
Note

Validerad; 2007; 20070427 (cira)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Tuomas, R. & Isaksson, O. (2006). Compressibility of oil/refrigerant lubricants in elasto-hydrodynamic contacts (ed.). Journal of tribology, 128(1), 218-220
Open this publication in new window or tab >>Compressibility of oil/refrigerant lubricants in elasto-hydrodynamic contacts
2006 (English)In: Journal of tribology, ISSN 0742-4787, E-ISSN 1528-8897, Vol. 128, no 1, p. 218-220Article in journal (Refereed) Published
Abstract [en]

A high-pressure chamber is used to study lubricant compressibility when refrigeration oil is diluted by refrigerant. The tested lubricant in this work is a POE (polyol ester) oil, POE diluted with nonchlorinated (HFC) refrigerant R-134a, a naphthenic mineral oil, and the mineral oil diluted with the chlorinated (HCFC) refrigerant R-22. The high-pressure chamber experiments show that by adding 20 wt% of R-134a to the polyol ester oil, the stiffness of the lubricant increases by approximately 38 wt% at 1 GPa and is much higher than for R-22 and mineral oil.

National Category
Other Mechanical Engineering Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Computer Aided Design; Machine Elements
Identifiers
urn:nbn:se:ltu:diva-9017 (URN)10.1115/1.2125967 (DOI)000234753200027 ()2-s2.0-33645753339 (Scopus ID)792f6e00-e6a7-11db-8a98-000ea68e967b (Local ID)792f6e00-e6a7-11db-8a98-000ea68e967b (Archive number)792f6e00-e6a7-11db-8a98-000ea68e967b (OAI)
Note

Validerad; 2006; 20070409 (ysko)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Westman, M. & Isaksson, O. (2004). Hydraulic components contribution to total power losses and acceleration of an open loop system with long hose (ed.). In: (Ed.), (Ed.), IMECE 2004: 2004 ASME International Mechanical Engineering Congress and Exposition. Paper presented at ASME International Mechanical Engineering Congress and Exposition : 13/11/2004 - 19/11/2004 (pp. 243-250).
Open this publication in new window or tab >>Hydraulic components contribution to total power losses and acceleration of an open loop system with long hose
2004 (English)In: IMECE 2004: 2004 ASME International Mechanical Engineering Congress and Exposition, 2004, p. 243-250Conference paper, Published paper (Refereed)
Abstract [en]

This paper is concerned with forest logging machinery. A great deal of final felling in cut-to-length method done by harvester, which fells, delimbs and cuts the trees to pre-selected lengths. Two important criteria of a harvester head are that it has to be energy efficient and it has to be as fast as possible. To minimize losses in hydraulic systems the main demand is to reduce pressure losses in high power valves and outer components as much as possible. Each orifice in the flow path results in power losses. This work is an experimental study on power losses and acceleration of hydraulic motor in a system with long hoses. Main hydraulic components included are hydraulic pump, cartridge valve, pipe line and hydraulic motor. The results show that pre-activating the pump improves the system speed. To reduce losses, optimization of valve block, cartridge valve orifices are needed. Accumulators are favourable if combined with high stand-by pressure.

National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
urn:nbn:se:ltu:diva-29964 (URN)10.1115/IMECE2004-60085 (DOI)2-s2.0-19544391443 (Scopus ID)39a3d6a0-65ef-11dc-8a3f-000ea68e967b (Local ID)0-7918-4710-1 (ISBN)39a3d6a0-65ef-11dc-8a3f-000ea68e967b (Archive number)39a3d6a0-65ef-11dc-8a3f-000ea68e967b (OAI)
Conference
ASME International Mechanical Engineering Congress and Exposition : 13/11/2004 - 19/11/2004
Note
Godkänd; 2004; Bibliografisk uppgift: IMECE2004-60085; 20070918 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved
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