This dissertation focuses the attention toward inventors and key actors involved in product development projects. The study focuses on how a new product development process is carried out operationally and strategically in small, technology-driven firms. The study is based on findings from four case studies among small aircraft manufacturers, two from Sweden, one from Germany, and one from northern Finland. By using one of the Swedish cases as a platform, issues concerning the development process emerged and were summarized in sixteen statemens. The statements were then used as themes and checkpoints when gathering information from the three additional cases. The analysis has been made in two steps; first, a comparison between the platform case and the additional case were made based on the statements, second, issues emerging from all four cases are discussed. The dissertation introduces perpetual product development as a terminology suitable for explaining the behaviour found in the studied firms. A foundation for perpetual product development is presented based on both actor and process characteristics. The actors are technology devotees with numerous ideas to pursue. Their technological interest result in a preference for the first part of the development process since they experience a higher degree of technological freedom from start. Once the product starts to materialize, the actors' possibility of incorporating new technical gadgets diminishes. As a consequence, a weaker interest for the exploitation/launch phase is present. The actors also have a time conception that differs from what is normally assumed. They do not consider speeding-to-market important, since the actors prefer a superior product than being first out on the market. Their attitude toward speeding-to- market also demand actors with a high degree of stamina, since it often involves projects carried out over a long period of time. Due to the individual characteristics described above, the process is technology-driven. The process also experience a fuzzy start and culmination. The actors will continue to make adjustments to the construction even after the product has been launched, if they believe it can be technically improved. A consequence regarding the way the actors are managing their firm is that there is a tendency to regard the product development as a leisure-time activity. In view of the findings, it can be established that each case has to be evaluated on its own merits, with regard to the central actors' personal objectives. / digitalisering@umu

This product presents the design of a useful multi-functional adjustable table. It will bring great convenience to people with disability who spend most of time in bed, so as to meet their daily needs. Since there are already many similar products on the market, we focused on updating the functions on table, which can help people reading books or using tablet PC on beds in a comfortable way. It can also support people to stand up and walk around. There is a C-clamp fixing the product consolidated to bed. Besides, the hydraulic and micro-computer systems are used to adjust the table into a proper height automatically. The whole structure was designed in Autodesk Inventor 2015, and the simulation, test, analysis experiments were made in Abaqus 6.1.2 to ensure its safety and stability. In addition, this design can be an incentive for the improvement of the auxiliary equipment, highlighting the importance of the development of mechanisms for the healthcare.

This study examines the relationship between an inventor’s motives and creativity, invention commercialization, and collaboration pattern. Special emphasis is placed on the educational background of inventors when examining the effect of inventor motive on invention commercialization. The data are based in a unique survey of patent inventors in the United States, and archival data. The GT/RIETI 2007 Inventor Survey includes information on commercialization for patented inventions and measures of inventor motives. Archival data based on Lai et al. (2011) was the basis for the collection of creativity measures based on U.S. patent technology subclasses. The results indicate that inventors’ motives differentiate the outcome of innovative activities. We found a firm motive has a positive effect on creating new combinations, commercialization of patents, and collaboration with coworkers. The results also suggest that the recognition motive negatively affects the creation of new combinations, and that there is no effect on the commercialization of the patent. As for collaboration pattern, the results show that individual differences in motives are associated with different patterns in collaboration. For example, task-oriented inventors are less likely to collaborate with others outside of the firm entity, whereas inventors with recognition motives are more likely to have a larger collaborative network with other professionals in the same field. This paper suggests that policy-makers should consider individual heterogeneity in innovative performance, knowledge creation, and patterns of collaboration. Based on the findings, future research and policy implications are discussed.

We consider the stochastic economic lot scheduling problem (SELSP) with lost sales and random demand, where switching between products is subject to sequence-dependent setup times. We propose a solution based on simulation optimization using an iterative two-step procedure which combines global policy search with local search heuristics for the traveling salesman sequencing subproblem. To optimize the production cycle, we compare two criteria: minimizing total setup times and evenly distributing setups to obtain a more regular production cycle. Based on a numerical study, we find that a policy with a balanced production cycle leads to lower cost than other policies with unbalanced cycles. (authors' abstract)

This paper applies to the design and simulation of a shipping container made of sandwich panels. The amount of stresses acting on the body of the container is calculated and is optimized to reduce stresses for the better design output of the structure. The design aims to produce an application to reduce the tare weight of the container in order to increase the payload. Finite Element Analysis (FEA) is performed to evaluate the strength of structures of both old and new models helps us to compare which model is better and more efficient. Complete design and analysis is performed using Autodesk Inventor. / no

The heart is a complex three-dimensional structure with mechanical properties that are inhomogeneous, non-linear, time-variant and anisotropic. These properties affect major physiological factors within the heart, such as the pumping performance of the ventricles, the oxygen demand in the tissue and the distribution of coronary blood flow. During the cardiac cycle the heart muscle tissue is deformed as a consequence of the active contraction of the muscle fibers and their relaxation respectively. A mapping of this deformation would give increased understanding of the mechanical properties of the heart. The deformation induces strain and stress in the tissue which are both mechanical properties and can be described with a mathematical tensor object. The aim of this master's thesis is to develop a visualization tool for the strain tensor objects that can aid a user to see and/or understand various differences between different hearts and spatial and temporal differences within the same heart. Preferably should the tool be general enough for use with different types of data.

The aim of this theses is to summarize the basic information about thermal properties of automobile lighting sources. The main topic is a LED diode. A model of a LED diode is going to be created in Inventor. A simulation of Joule's losses will be performed in Ansys Workbench Transient.

This master thesis deals with the comparison of an industrial system for object recognition and measurement with an affordable camera on the Raspberry Pie platform. The theoretical part briefly describes several methods for measuring dimensions, which are commonly used in industry, along with a general description of technical equipment for image recording. The next section describes 3 industrial systems for image analysis. The practical part of the work deals with the design of the measuring stand, the description of the technical equipment, the implementation of measurements using both platforms and the subsequent evaluation.

Thermal analysis of electric machine is one of the key steps in design procedure. Traditionally, thermal calculations are done by analytical method, mostly based on equivalent electrical circuit, where thermal quantities are replaced by equivalent electrical quantities. These methods employ so-called electro thermal analogy. Different approach is to use Finite Element Method, which is the main goal of this thesis. First part of the thesis is devoted to description of CAD system Autodesk Inventor, which is modern parametric CAD for modelling of virtual prototypes. This system is then used for creation of three dimensional model of brushless DC machine. Second part is focused on thermal calculations in Ansys Workbench environment. Model of brushless DC machine created in Inventor is transferred into Ansys Workbench and thermal analysis is carried out.

Diplomová práca sa zaoberá návrhom mixéru pre výrobu fosfátových hnojív s ohľadom na zadané požiadavky. Práca samotná je rozdelená do niekoľkých častí, kde prvá formuluje ciele riešenia. Základné otázky konkrétneho priemyslu sú odpovedané s akcentom na premenné, ktoré priamo ovplyvňujú kvalitu mixovania. Ďalšia časť práce prezentuje ideový návrh so sadou výpočtov, ktoré podporujú požadovaný výkon a mechanický dizajn mixéru. Hriadeľ je kontrolovaný analytickým výpočtom a metódou FEM, vyúsťujúc do zhodných záverov. Navrhnutý dizajn mixéru je prezentovaný 3D modelmi jeho súčastí, ktoré boli vytvorené v prostredí Autodesk Inventor. Práca obsahuje taktiež 2D dokumentáciu.