The overall goal of the design process is to create products of good usability. For the purpose of concept evaluation and design exploration within a human-centered design process, real touchable prototypes are often indispensible. This applies especially for products with human machine interfaces consisting of mechanical elements. However the production of physical prototypes entails immense expenses of cost and time which leads to long iteration loops within the product development. In this paper a Hybrid Mock-Up approach was presented that allows a physical interaction with virtual prototypes. The behavior of the product is simulated digitally whereas elements of the human-machine interface are emulated using a generic haptic device. The benefit of the approach is that for the user a realistic product perception is achieved without having to dispense with the advantages digital engineering offers: saving of costs and time due to a reduction of physical prototypes and the possibility to carry out design changes very quickly. It was shown how the behavior of mechanical components can be emulated using a generic haptic device. Response surface based metamodels were used to meet the real time requirements of a computer haptic system. This approach allows the utilization of numerical simulation of arbitrary complexity to simulate the physical behavior of a product. In a case study the proposed work methodology was exerted to a crank driven car jack assembly. The Hybrid Mock-Up simulation system was used to find a suitable combination of geometrical design parameters so that the ergonomic properties of the jack subjectively perceived by the user are optimal. Due to its relatively simple structure, the behavior of the demonstrator could have been described using solely analytical equations. Nevertheless numerical simulations in combination of RSM metamodels were chosen in order to outline the generality of the approach. However for a range of simple systems analytical simulation procedures may be suitable and should be considered because the tedious pre-calculation process is avoided.


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    Title :

    A haptic based hybrid mock-up for mechanical products supporting human-centered design


    Contributors:


    Publication date :

    2011


    Size :

    12 Seiten, 11 Bilder, 1 Tabelle, 10 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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