Konstruktion av lyftredskap och dockningsstation

Sammanfattning: This is an abstract of the report for a thesis of 15 credits in the program Innovation and Product Design, on the School of Innovation, Design and Technology at Mälardalen University in Eskilstuna. The work was executed during the spring term of 2019.  The work covers a development in project form, of a design proposal for two constructions. The purpose of the design is to enable construction processes for the creation of perpendicular building elements in a building system for recyclable houses. The building system is a further development of previous systems for prefabricated houses in factory environment.  The project has been carried out on behalf of the company Husmuttern AB in Eskilstuna, which is also the creator of the building system's further development. The objective of the further development of the building system is to be able to prefabricate recyclable houses for both private ownership and leasing to public activities, such as temporary school buildings or asylum housing. The development that constitutes the difference to the current building system with the same objective, is how the construction process is designed in the factory. Through an innovative utilization of controlling fixtures and animated process descriptions, the need for both language skills and building technical training is restricted. The result serves two purposes. Firstly, jobs are created, for immigrants or people who have been unemployed for a long time, due to the fact that the process steps are animated without the need for language skills and fixtures that eliminate risks for alternative assembly. Secondary, the building system can maintain a high pace to meet high demand in the housing market.    The main question for the project to answer has been: "How should the designs for assisting lifting of wall elements and the production of corner elements for the building system be designed to meet requirements of safety and ergonomics?"    The methods for answering the main question have included the breakdown of the main question into sub-questions, field work, practical and electronic strength tests, discussions with the company's decision makers, dialogues with area experts, time disposition in the form of Gantt schedule, literature studies and proven methods for valuing and generating customer needs and concept solutions.    The projects resources have included 40 hours of two students' work effort during 20 working weeks, tensile testing machine at Mälardalen University in Eskilstuna, existing CAD files for the construction system from the company, CAD and FEM programs for design and test work, access to the company's premises and free provision of physical building materials    The result of the work is this report with the presentation of two design proposals in form of a lifting gear and a station for assembling a perpendicular corner element that through practical and electronic tests, as well as studies of current regulations, seems to meet the requirements for CE badge, which is both a work environment requirement and corresponds the company's ambitions for high safety and good ergonomics.