| 1. |
- Ek, Hans, et al.
(författare)
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Professioner, makt och samverkan mellan myndigheter : socialtjänstens, skolans och BUP:s arbete med ungdomar som inte går till skolan
- 2017
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Ingår i: Socialvetenskaplig tidskrift. - Lund : Förbundet för forskning i socialt arbete (FORSA). - 1104-1420 .- 2003-5624. ; 24:1, s. 59-77
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Tidskriftsartikel (refereegranskat)abstract
- School non-attendence is often a sign of a complex combination of different kinds of problems, which means that these children and young people are often in need of composite help from several different types of professions within various authorities. The purpose of the study was to examine how school authorities, the Social Services and Child and Adolescent Psychiatry (BUP) collaborate in their work with young people who do not go to school. The study comprised a thematic analysis of qualitative interviews with managerial representatives of the respective authorities. The empirical material consisted of 12 qualitative interviews with heads of units at BUP (5 individuals), section managers from Social Services (3 individuals) and principals from compulsory schools (4 individuals) in three municipalities in western Sweden. According to the results, it seems problematic to manage the positions of power that may arise in collaboration between the parties. A position of power thus implies the right to make a desicion as a profession as well as activities that are related to each other. The right to make a desicion means the mandate to determine which measures should be put in place for the young people and their families. This study also shows that the parties should develop a common knowledge base that is a combination of educational, social and psychiatric perspectives. The common knowledge base can reduce the risk of power imbalance between the parties.
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| 2. |
- Ek, Hans, 1966-
(författare)
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Psykiatriseringen av skolkaren : BUP och det institutionella omhändertagandet av ungdomar som inte går till skolan
- 2018
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The main aim of the thesis was to investigate the nature of as well as critically review the institutional care of young people who do not go to school.The thesis consists of four studies. The first three studies are based on different empirical materials such as electronical journals and administrative patient databases, qualitative interviews with social workers at Child and Adolescent Psychiatry (CAP), and with managerial representatives in School, social services and CAP. The fourth study is mainly theoretical and problematizes the results from the first three studies.The results show several problematic aspects in the institutional care of young truants. When young truants enters CAP, a quick, and sometimes without psychological investigation, categorization is made with psychiatric terminology in the form of a diagnosis, and medicines are prescribed as treatment. Further, social workers, who shall have a systemic approach on family and relationships, seem to embrace a psychiatric diagnostic understanding of the problems. At the same time, it appears that school only has extra resources to help the truants if they have a psychiatric diagnosis. Although the idea of collaboration between different professionals is that several different perspectives should be used, the results shows that CAP's psychiatric perspective dominates.The results of what happens to young people who do not go to school is discussed as an example of a special form of medicalization, in which social difficulties and existential problems are referred to psychiatry. It appears that help for them is completely individualised, by focusing on symptoms and diagnosis. What is not visible in this unilateral individualisation, for example, are organisational and educational problems in school, system problems in the family or among friends or lack of social contacts outside the family. By referring the truant to CAP can therefore miss further social circumstances in their life situation, which can have great importance in whether they attend school or not. Therefore, it is important to problematise this process of referring everything to psychiatry and to ask questions about what situations and events have contributed to this cultural pattern, which means that people's difficulties in life are increasingly being solved with diagnosis and medications.
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| 3. |
- Forslund, Anders, 1982, et al.
(författare)
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Bridging the gap between point cloud and CAD: A method to assess form error in aero structures
- 2016
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Ingår i: 18th AIAA Non-Deterministic Approaches Conference, 2016; San Diego; United States; 4 January 2016 through 8 January 2016. - Reston, Virginia : American Institute of Aeronautics and Astronautics. - 9781624103971
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Konferensbidrag (refereegranskat)abstract
- One barrier to the successful implementation of probabilistic design methods is the lack of methods for characterizing form error. Form error, defined as the irregular deviations in geometry, is hard to describe in a virtual environment. This paper showcases a method that uses a simulation platform to assess the effects of form error on the aerodynamic, thermal and structural performance of an aero structure. Particularly, it looks at how bridging the gap between nominal CAD-geometries and point-cloud-based scanned geometries, creates a unified model where physical geometrical deviations can be isolated from model uncertainties. In a sample fatigue life problem, the effects of geometrically deviated parts is assessed. Further, a permutation genetic algorithm is implemented to optimize deviated part configuration. From a research standpoint, the showcased method contributes to addressing the genesis problem inherent in uncertainty quantification. From and industrial point of view, this method provides a precise, cost-effective tool for dealing with effects variations, which in turn increases both product quality and development process efficiency.
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| 4. |
- Forslund, Anders, 1982, et al.
(författare)
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Designing simulation platforms for uncertainty—An example from an aerospace supplier
- 2015
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Ingår i: 17th AIAA Non-Deterministic Approaches Conference. - Reston, Virginia : American Institute of Aeronautics and Astronautics. - 9781624103476 ; , s. 9-
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Konferensbidrag (refereegranskat)abstract
- Variation poses a serious threat to the functionality, safety and reliability of aircraft. As the aerospace industry depends ever more heavily on modeling and simulation in their product development, there is an increased need to assess the effects of variation in a virtual environment. This paper outlines the methods proposed by a Swedish aerospace supplier to incorporate robust design methodology into platform-based product development. These methods evaluate how geometric variation affects the aerodynamic, thermal and structural performance of turbofan engine components. The results of the study show that simulation results are heavily affected by variations in geometry. Moreover, this study showcases automated simulation platforms as a powerful tool for robustness analyses. In addition to optimizing the robustness of products, these tools are equally effective as a tool for allocating engineering resources to optimize quality-to-cost ratio. © 2015 American Institute of Aeronautics and Astronautics Inc. All rights reserved.
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| 5. |
- Forslund, Anders, 1982, et al.
(författare)
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Evaluating How Functional Performance in Aerospace Components Is Affected by Geometric Variation
- 2018
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Ingår i: SAE International Journal of Aerospace. - : SAE International. - 1946-3855 .- 1946-3901. ; 11:1, s. 5-26
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Tidskriftsartikel (refereegranskat)abstract
- Geometric variation stemming from manufacturing can be a limiting factor for the quality and reliability of products. Therefore, manufacturing assessments are increasingly being performed during the early stages of product development. In the aerospace industry, products are complex engineering systems, the development of which require multidisciplinary expertise. In such contexts, there are significant barriers against assessing the effects of geometric variation on the functionality of products. To overcome these barriers, this article introduces a new methodology consisting of a modelling approach linked to a multidisciplinary simulation environment. The modelling approach is based on the parametric point method, which allows point-scanned data to be transferred to parameterised CAD models. In a case study, the methodology is implemented in an industrial setting. The capability of the methodology is demonstrated through a few applications, in which the effects of geometric variation on the aerodynamic, thermal, and structural performance of a load-bearing turbofan component are analysed. The proposed methodology overcomes many of the current barriers, making it more feasible to assess the effects of geometric variation during the early design phases. Despite some limitations, the methodology contributes to an academic understanding of how to evaluate geometric variation in multidisciplinary simulations and provides a tool for industry.
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| 6. |
- Landahl, Jonas, 1986, et al.
(författare)
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Mediating constraints across design and manufacturing using platform-based manufacturing operations
- 2017
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Ingår i: Proceedings of the International Conference on Engineering Design, ICED. - 2220-4334 .- 2220-4342. ; 6:DS87-6, s. 179-188
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Konferensbidrag (refereegranskat)abstract
- To meet the needs of an array of customers, platforms can provide means to achieve commonality and distinctiveness among a family of products. However, typically the producibility of product variants are not ensured until the late platform development phases. This may lead to increased development lead-time, due to lack of integration across design and manufacturing. To be better suited in making early producibility assessments, a model to improve the integration across product platforms and manufacturing platforms is presented. The model is embodying manufacturing operations and marries platform models of two technical systems – products and manufacturing equipment. To serve the concurrency needed to explore cross product-manufacturing alternatives during the early phases of platform development, manufacturing operations can be modeled to serve improved integration of product platforms and manufacturing platforms. By modeling functions, control parameters, and key characteristics, the constraints across design and manufacturing can be mediated.
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| 7. |
- Landahl, Jonas, 1986, et al.
(författare)
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Using product and manufacturing system platforms to generate producible product variants
- 2016
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Ingår i: Procedia CIRP. - : Elsevier BV. - 2212-8271. ; 44, s. 61-66
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Konferensbidrag (refereegranskat)abstract
- Product platforms have proven efficient as a means to reduce lead-time and increase product quality simultaneously. When using platforms to generate a family of products, the number of variants that need to be managed in manufacturing increases. To succeed with this, the manufacturing system needs to be maintained in a similar level of flexibility as the product platform. However, there is seldom a joint decision behind each and every conceptual product variant during development, regarding capability in manufacturing. For example, when considering producibility, some product variants require better tolerances than what the manufacturing processes can deliver. This uncertainty can be reduced, by making producibility analyses of a set of conceptual product variants. By performing several different analyses, knowledge can be gained, and joint decisions can be made about cross product-manufacturing aspects. The activities can be systematically arranged to gradually eliminate unfeasible conceptual product variants. In this paper we show how an integrated PLM architecture can be used to create sufficient knowledge as a basis for joint product and manufacturing decisions. The utmost company benefit of this is to reduce lead-time by taking manufacturing capability into account when developing product families.
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