| 1. |
- Larsson, Tobias
(författare)
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Effective development of dynamic systems : a structured approach
- 1999
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This licentiate thesis deals with effective simulation of multibody dynamic systems in the product development process. Previous work to make simulation more effective has concentrated on developing faster calculation methods. Instead, this approach is to make the process of multibody dynamics simulation more effective by structuring of products, simulation models and their usage. Efforts have been made to clarify how computer tools are used in product development in industry today. Insight into the two domains of product development and multibody dynamics is given. These domains have traditionally been separated but the introduction of concurrent engineering and faster computers puts new demands on the integration of computer support and analysis in the development process. A proposal for performing the multibody dynamics methodology in a modular way in the product development process is given based on the performed work.
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| 2. |
- Aas, Gro Hanne
(författare)
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Kvinneforskningspolitiske (pr)øvelser
- 1999
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Målsettingen for licentiatuppsatsen er å analysere nordisk kvinneforsknings formuleringer av forskningspolitiske felter, problemstillinger og utfordringer, og gjennom kontakt og diskusjon bidra til samarbeid, diskusjoner og offentlighet om forskingspolitikk i kvinneforskning. Arbeidet har tatt utgangspunkt i relativt nytt materiale fra Danmark, Norge og Sverige. I kap. 1 presenteres prosjektet, problemstillinger og materiale. Kapitlene 2-6 består av innledninger og artikler holdt eller skrevet i løpet av de to senaste åren. Diskusjoner om kjønn og akademia står i fokus i kap. 2 - "Universities have politics". I kap. 3, artikkelen "Gamle og nye drømmer", diskuteres et kvinneforskningspolitiske intervensjonsprosjekt som blev utført for en del år tilbake, og det antydes noen nye omdreiningspunkter for et slikt arbeid. Enkelte perspektiver utdypes i kap. 4, "Kvinneforskningens samfunnskontrakt", hvor termen "kvinneperspektiv" som forskningspolitisk term granskas krtitiskt. De to siste kapitlene tar utgangspunkt i den norske forskningsmeldingen som kom våren 1999. Ut fra tre lesestrategier forsøkes det leses muligheter for kvinneforskningspolitiske strategier. Det ses også på innholdet i regjeringens forskningspolitiske verdidebatt, og det diskuteres mulige intervensjoner i denne ut fra feministiske vitenskaps- og teknologistudier.
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| 4. |
- Andersson, Roger
(författare)
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Effects of composition and the production process on formability of austenitic stainless steels
- 1999
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Formability of austenitic stainless steels is strongly influenced by the chemical composition, the internal texture and the deformation conditions. The purpose of this study is to determine how small variations in chemical composition and minor variations in the production process are influencing the formability of type 304 and 316 austenitic stainless steels. In this study, the formability of ten sub-grades of type 316 austenitic stainless steel and four sub-grades of type 304 austenitic stainless steel were investigated. These investigations are expected to have significant impact for both stainless steel producers and users. If the influence of the chemistry on the formability and the influence of different paths in the cold-rolling plant on the anisotropy are better understood, then manufacturers will be able to design processes which optimise the limiting strains.
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| 5. |
- Antti, Marta-Lena
(författare)
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Preparation and properties of sapphire/alumina long fibre composites
- 1999
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The research described in the thesis concerns the preparation and properties of oxide/oxide composites and in particular composites consisting of an oxide matrix reinforced with continuous oxide fibres and intended for use as structural materials at very high temperatures. For this application particular attention must be paid to the behaviour of the fibre/matrix interface and to the properties of the fibre. The research has involved two main aspects (i) a thorough review of the physical and mechanical properties of candidate oxides with emphasis on elastic properties and creep properties and (ii) the experimental development of methods to produce continuous fibre reinforced oxide/oxide composites.
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| 6. |
- Backlund, Fredrik
(författare)
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Reliability-centred maintenance : identification of management and organisational aspects when introducing RCM
- 1999
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Increased demands on productivity, quality and cost-efficiency affecting manufacturing trends towards increased complexity and higher degree of process automation. A major break down in such a manufacturing system may generate severe damage on productivity, environment and personnel. Using risk assessment to identify serve risks within a plant, in combination with different maintenance strategies, is one course of action to prioritising maintenance activities needed. A methodology for executing a so-called risk-based maintenance is reliability-centred maintenance, RCM. There are several benefits generated from RCM, for example, improved safety and maintenance cost-effectiveness. Though, several companies have problems to make it work. The problems that occur are many times within management and organisational (M&O) aspects, such as lack of communication and management support. Some M&O aspects of importance when introducing improvement methods as TQM and TPM are similar with the ones valid for RCM. Though, differences seem to depend on the use of RCM in a more technology environment, overshadow the affects M&O aspects really bring about when introducing it. That is probably the main reason why obstacles occur when introducing RCM. A structured step model has been developed, focusing on the preparation and planning activities when introducing RCM.
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| 7. |
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| 8. |
- Barth, Henrik
(författare)
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Barriers to growth in small firms
- 1999
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- It has been indicated in literature that growth of small firms is essential for job creation, for the national economy and for development as a whole. In order for small firms to realise their growth potential, it is essential that the small firms manage to overcome various barriers to growth along the way. These barriers that hinder the growth of small firms are discussed and analysed in this extended summary. The extended summary pinpoints the general barriers to growth identified in literature and develops further knowledge of dominant barriers to growth in small firms. It is argued in the extended summary that lack of appropriate change of the organisation structure as the firm's size increases, is to be regarded as a dominant barrier to growth. When the small firm has a simple structure it is usually the small business manager that controls most of the activities within the firm, but when the organisation size increases it is important that also control and responsibility are differentiated among various functions. This internal change in the firm demands different and formal ways of co-ordinating the venture. This study indicates that the small business manager does not delegate responsibilities and decision-making to various functions until the number of employees has reached a certain level. This threshold value indicates a distinctive barrier in the simultaneous growth in size and differentiation of a small firm. A small firm encounters a barrier when the organisation size no longer matches its current structure. A small firm may have a very simple and informal structure, but when the number of employees grows, so will the need to differentiate and specialise the way in which work is done. It has also been argued in this extended summary that there is a relationship between firm performance and organisation structure. From this point of view, the small business manager will not only face problems with co-ordination and control as the firm size increases: his/her firm will also perform worse than firms that recognise the importance of structural implications when the number of employees increases.
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