Selection of the wind turbine manufacturer is naturally an important issue for wind energy companies when they build new wind farms. This paper describes the main factors by which wind energy companies choose their tu...Selection of the wind turbine manufacturer is naturally an important issue for wind energy companies when they build new wind farms. This paper describes the main factors by which wind energy companies choose their turbine manufacturers in a selected case region in Finland. The study was conducted using semi-structured interviews, for which the experts and decision makers of selected wind energy companies formed the focus group. During the analysis of the results, it became clear that it was not possible to form a detailed and prioritized list of selection criteria, but still some general themes emerged. The main theme was the manufacturer and product reliability, and then the production volume, cost factors, availability factors, and the organization of maintenance in this order. Interestingly, the arctic conditions of the selected case region did not play any significant role.展开更多
Due to high competition of the agriculture machines sector, the auto parts suppliers are investing in research to promote the development and reduce the costs of the products, passing these results to their clients wh...Due to high competition of the agriculture machines sector, the auto parts suppliers are investing in research to promote the development and reduce the costs of the products, passing these results to their clients who are the automakers. It was identified the need to redesign the regulation sieve system harvester, which is a compound assembly in the harvester＇s grain cleaning system, with the objective to reduce the costs and improve the ergonomic aspect, keeping the same efficiency from the original project. The improvement was developed by studying the original design and identifying possible project fails, such as components and manufacturing process which could be eliminated. For this, it was needed to do a research about rules and project considerations that must be applied in the products development and ergonomic too, specifically about geometric forms and anthropometric measures. From the redesign of this system, it is verified that it is possible by a study to identify possible improvements, and to develop a new system by a simple project, improving the ergonomic, reducing the cost and keeping the same efficacy from the original project.展开更多
文摘Selection of the wind turbine manufacturer is naturally an important issue for wind energy companies when they build new wind farms. This paper describes the main factors by which wind energy companies choose their turbine manufacturers in a selected case region in Finland. The study was conducted using semi-structured interviews, for which the experts and decision makers of selected wind energy companies formed the focus group. During the analysis of the results, it became clear that it was not possible to form a detailed and prioritized list of selection criteria, but still some general themes emerged. The main theme was the manufacturer and product reliability, and then the production volume, cost factors, availability factors, and the organization of maintenance in this order. Interestingly, the arctic conditions of the selected case region did not play any significant role.
文摘Due to high competition of the agriculture machines sector, the auto parts suppliers are investing in research to promote the development and reduce the costs of the products, passing these results to their clients who are the automakers. It was identified the need to redesign the regulation sieve system harvester, which is a compound assembly in the harvester＇s grain cleaning system, with the objective to reduce the costs and improve the ergonomic aspect, keeping the same efficiency from the original project. The improvement was developed by studying the original design and identifying possible project fails, such as components and manufacturing process which could be eliminated. For this, it was needed to do a research about rules and project considerations that must be applied in the products development and ergonomic too, specifically about geometric forms and anthropometric measures. From the redesign of this system, it is verified that it is possible by a study to identify possible improvements, and to develop a new system by a simple project, improving the ergonomic, reducing the cost and keeping the same efficacy from the original project.
