Utveckling av testsystem för Interface Test Adapter till Gripen ATE
Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
The work has been carried out as a product development project at Saab AB in Arboga, focusing on construction. Saab in Arboga develops test systems for JAS 39 Gripen, whose purpose is to verify all the contacts. This is done by using the test system, ATE.
Before testing can begin, the wiring harness in the ITA must be verified. Currently this is done manually, and due to wiring extent, the risks of incorrect measurements are apparent. In addition to incorrect measuring, the extent of the wiring can also lead to incorrect wiring in production. These errors can result in the test system fails, which means great financial loss for the company.
The project's aim was to develop an automated measurement process and produce a prototype, in order to verify that the ITA is correctly connected before the simulation is done. The main issue for the project has been if an automated measurement process can obtain sufficient precision to replace manual measurement.
By analyzing the market for automated movement, a number of concepts for the overall measurement process were generated. The concepts were evaluated with decision-matrix method, as well with regard to the complexity of the required software management for each concept.
The measurement process that was chosen based on the 3D printer and its underlying mechanics and automation. To realize the concept to a fully working prototype the process of product development was broken down in segments. This reduced the level of complexity, while it contributed to simplify optimization. In order to achieve optimum design every segment consisted of concept generation and concept evaluation.
The construction which is the basis for the prototype is an off-the-shelf solution, and based on the parts used in the milling machine x-Carve. The overall structure is based on the milling machine, however modified to the extent that the purpose can be achieved. The choice to base the design on the X-Carve was made against the background that it harmonized well with the overall concept of measuring process, but also well with the concepts generated in the broken down segments, mentioned above. The underlying factor to the use of components which is an off-the-shelf solution to the design is a result of the project vastness and the provided time.
The developed prototype lives up to the requirements. Empirical tests indicate that the prototype obtains sufficient precision to perform measurements. The results of the tests carried out shows that manual labor can be replaced, and therefore leads to the conclusion that the prototype proved useful.
The prototype has some potential for development, why it is recommended to examine each segment if additional optimizations must be made.
Place, publisher, year, edition, pages
2016. , 66 p.
Produktutveckling, Testsystem, Saab, Jas
IdentifiersURN: urn:nbn:se:mdh:diva-33487OAI: oai:DiVA.org:mdh-33487DiVA: diva2:1043838
Subject / course
Product and Process Development
2016-06-09, Selandersalen, Eskilstuna, 09:35 (Swedish)
Gustafsson, Bengt, Universitetsadjunkt
Bjelkemyr, Marcus, Universitetsadjunkt