| 1. |
- Heikkinen, Tim, et al.
(författare)
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Automated Producibility Assessment Enabling Set-Based Concurrent Engineering
- 2016
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Ingår i: Transdisciplinary Engineering. - : IOS Press. - 9781614997030 - 9781614997023 ; , s. 947-956
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Konferensbidrag (refereegranskat)abstract
- The aero-engine industry is continuously faced with new challenging cost and environmental requirements. This forces company's, active in the industry, to work toward more fuel efficient engines with less environmental impact at a lower cost. This paper presents a method for assessing producibility of large sets of components within aircraft engines to enable a Set-Based Concurrent Engineering development approach. A prototype system has been developed aimed at enabling weldability analysis at a sub-supplier within the aero-engine industry. It is a part of a multi-objective decision support tool used in early design stages. The tool produces sets of CAD-models reaching the hundreds for different analyses, mainly focusing on performance aspects within structural analysis, aerodynamics and thermodynamics.
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| 2. |
- Stolt, Roland, et al.
(författare)
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Early stage assessment of the inspectability of welded components : A case from the aerospace industry
- 2016
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Ingår i: Proceedings of the 7th International Swedish Production Symposium.
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Konferensbidrag (refereegranskat)abstract
- This paper proposes a method to indicate potential problems when planning dye penetrant and x-ray inspection of welded components. Inspection has been found to be an important part of the manufacturability evaluation made in a large CAD-based parametric environment for making multidisciplinary design simulations in early stages of design at an aircraft component manufacturer. The paper explains how the proposed method is to be included in the design platform at the company. It predicts the expected probability of detection of cracks (POD) in situations where the geometry of the parts is unfavourable for inspection so that potential problems can be discovered and solved in early stages. It is based on automatically extracting information from CAD-models and making a rule-based evaluation. It also provides a scale for how favourable the geometry is for inspection. In the paper it is also shown that the manufacturability evaluation need to take into consideration the expected stresses in the structures, highlighting the importance of multi-disciplinary simulations.
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| 3. |
- Olsen, Rickard, 1979-, et al.
(författare)
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Assembly cell concept for human and robot in cooperation
- 2013
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Ingår i: 22<sup>nd </sup>International Conference on Production Research. - 9788588478473
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Konferensbidrag (refereegranskat)abstract
- Today’s aerospace assembly is a huge manual task according to strictly controlled instructions, where differentoperators are responsible for different areas. This harmonizes with the overall lean approach, but the assemblyis very time-consuming and some tasks are not ergonomically friendly, such as assembly tasks inside a wingbox. Here, it could be possible to increase automation with the aim to facilitate a shorter assembly time andergonomically improved workplace. This paper will present different assembly cell concepts utilizing differentsafety strategies to achieve human-robot cooperation in an aerospace industry assembly line. These conceptswill be discussed in relation to a case in the aerospace industry. The paper concludes with suggestions forthree conceptual human-robot cooperation layouts. These are based on previous research in the areas ofsafety and human-robot cooperation, in combination with observations from an aerospace assembly line.
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| 4. |
- Johansson, Jonas, 1972-, et al.
(författare)
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Prognostics of Thermal Fatigue Failure of Solder Joints in Avionic Equipment
- 2012
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Ingår i: IEEE Aerospace and Electronic Systems Magazine. - : IEEE. - 0885-8985 .- 1557-959X. ; 27:4, s. 16-24
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Tidskriftsartikel (refereegranskat)abstract
- A practical method has been suggested for solder joint thermal fatigue prognostics, which enables real-time fatigue calculations based on uncompressed temperature data embedded in a host system that performs safety-critical operations. The accuracy of the prognosticated remaining useful life depends on the level of details captured in the model, and the level of confidence from validation efforts.
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| 5. |
- Raudberget, Dag, 1967, et al.
(författare)
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Implementing the principles of set-based concurrent engineering in configurable component platforms
- 2012
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Ingår i: NordDesign 2012 - Proceedings of the 9th NordDesign Conference. - Aalborg : Center for Industrial Production. - 9788791831515
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Konferensbidrag (refereegranskat)abstract
- This paper describes a new design approach that implements the three principles of Set-based Concurrent Engineering by using the concept of Configurable Component modelling. Several case studies has proven the efficiency of Configurable Component modelling as well as the Set-based philosophy, and by combining these two research areas, a computer based modelling of Configurable Component objects is used to support the Set-based philosophy. The approach is demonstrated by a case study that indicates a promising future of combining Set-based Concurrent Engineering with Configurable Component modelling for re-design problems.
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| 6. |
- Stolt, Roland, et al.
(författare)
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Manufacturability assessment in the conceptual design of aircraft engines – building knowledge and balancing trade-offs
- 2015
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Ingår i: Product Lifecycle Management in the Era of Internet of Things. - : Springer. - 9783319331102 - 9783319331119 ; , s. 407-417
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Konferensbidrag (refereegranskat)abstract
- This paper addresses the automated assessment of manufacturability of air-craft engine components in the early stages of design, focused on the welding process. It is a novel part of a multi-objective decision support tool for design evaluation, currently running at a manufacturer of jet engine components. The paper briefly describes the tool and how it impacts the product development process. Further, the paper presents an integrated method for manufacturability assessment by finding welding processes that complies with all geometrical and other constraints found in the CAD-models of the conceptual engine. Here, preferences made by manufacturing engineers serves as a base for a manufacturability index so that different parameter settings in the CAD-models can be compared to find the best parameter settings, considering the trade-off with other performance criteria’s of the engine.
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