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Vem får plats i baksätet på en bil?: Utveckling av en virtuell rymlighets metod
2015 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The emphasis of this master’s thesis is to develop a virtual method for determining the amount of space (e.g. headroom or kneeroom) that is needed in order for a person of a certain height to sit comfortably in the rear seat (2nd row) of a car. The method is developed using a tool for ergonomic analyses, RAMSIS, where so called manikins (digital human models) are used to evaluate the roominess of the rear seat. The project is carried out on behalf of Volvo Car Corporation’s ergonomics department in Gothenburg. The exterior design of cars has a big impact on the amount of interior space that is available. In recent years the general trend in car design has consisted of more dynamic appearances, which often leads to lower roofs and smaller windows. How does this affect the perceived roominess in the car? How does the perceived roominess differ from the physical? Are there other factors besides that of the amount of actual physical space? To be able to answer questions like these in an early stage of the car development process, when the car is still only existing in the computer as a virtual model, can be very beneficial. In addition, the need for physical prototypes can be reduced which would shorten the development time and reduce development costs. Today the ergonomics department at Volvo Car Corporation use RAMSIS to analyse the driver’s posture and motion. However, due to the fact that the program has problems mirroring realistic seating positions in the rear seat, a virtual method (for use in RAMSIS) is needed to better position manikins in the rear seat and to be able to tell who can fit comfortably. A clinic, which is the basis for the development of the virtual method, has been conducted with a total of 60 test participants. Objective data in the form of physical measurements, and subjective data through a survey regarding perceived roominess was gathered regarding seating positions in the rear seat. From the data it was possible to see correlations between perceived and physical roominess which would help derive measurements corresponding to specific ratings. In this sense it was possible to determine how much room one needed for a specific rating. The virtual method was created through an iterative process where analysis of the clinic results together with extensive testing in RAMSIS was the key. The result is a step by step guide for virtual roominess evaluation where a chosen manikin can be positioned in the rear seat of a chosen car model. Thus, it is possible to see how tall of a manikin that will fit and also how well it fits in terms of a score on a specific scale.

Place, publisher, year, edition, pages
2015. , 114 p.
Keyword [en]
Keyword [sv]
Teknik, Fordonsergonomi, rymlighet, metodutveckling, RAMSIS, klinik, baksäte
URN: urn:nbn:se:ltu:diva-45549Local ID: 33b317de-1f0d-4b25-96ce-c25cabbf451fOAI: diva2:1018843
External cooperation
Subject / course
Student thesis, at least 30 credits
Educational program
Industrial Design Engineering, master's level
Validerat; 20151207 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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Bentioulis, PhilipSager Forsberg, Robert

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