14 June 2001 Environmentally responsive material to address human-system interaction in the automotive cockpit
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There is significant human-system interaction in an automotive cockpit, and for particular components this interaction can be ever-present while being transient in nature. It is envisioned that environmentally responsive materials can be used in some components to accommodate personal and transient differences in the desired human-system interaction. Systems containing responsive gels have been developed to provide user activation and adjustment of the physical properties of a particular interior automotive component. Proprietary reverse viscosification gel formulations were developed that are thermally responsive. Formulations were modified to adjust the dynamic modulus and viscosity in terms of magnitude, amount of change over the viscosification transition, and the temperature over which the transition occurs. Changes in the physical properties of two orders of magnitude and more were achieved over a narrow transition region. Preliminary human factors assessment indicates that this order of magnitude of change is desirable. As the system of responsive gel, encapsulating material and activation mechanism is developed further, additional human factors studies will refine the desired physical properties and thermal activation mechanism. Ultimately, this system will have to perform over the broad range of temperatures imposed on interior automotive components and exhibit long-term durability chemically, physically and mechanically.
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Jackie D. Rehkopf, Jackie D. Rehkopf, Saeed D. Barbat, Saeed D. Barbat, Neil Mark Goldman, Neil Mark Goldman, Marsha A. Samus, Marsha A. Samus, Harris Gold, Harris Gold, } "Environmentally responsive material to address human-system interaction in the automotive cockpit", Proc. SPIE 4332, Smart Structures and Materials 2001: Industrial and Commercial Applications of Smart Structures Technologies, (14 June 2001); doi: 10.1117/12.429659; https://doi.org/10.1117/12.429659

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