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  1. #1

    Default GM Achieves Technology Breakthrough with Smart Materials

    Smart materials will enable vehicle features to move without motors WARREN, Mich. (Mar. 8, 2007) — General Motors scientists demonstrated breakthrough developments in smart materials technology at a media briefing today at GM's Research and Development Center.
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    Dead links. Scroll down for complete post.
    Last edited by Cableguy; 05-12-2007 at 11:20 AM.

  2. #2

    Default

    I beleive we had this discussion. That being said, this will just be one more thing that the end user will not be able to repair. Us back yard mechanics are slowing loosing our fun stuff. Last time I checked my shop I don't have any smart material....back to the dealer to get jammed at union rates



    Jamie

    2007 Ford E250(Work van) (Ya, Ya, shut up!)
    1996 GMC Sierra SLE 1500 5.7L/4L60E

  3. #3

    Default

    Yeah, how do you go to the parts counter and ask for some smart material?

    "I need an alternator for a 1996 Tahoe and some smart material for my new Chevy."

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

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  4. #4

    Default

    That link is dead, if anyone can get it and post the full article that would be great.

    Steve
    10 Chevy Traverse LT AWD
    02 Chevy Trailblazer LS (110K+ miles - loaded except for 4WD - WRECKED!)
    99 Chevy Cavalier LS (105K+ miles - commuter car)
    78 Chevy Suburban Silverado (454, 3/4 ton)
    62 GMC 3/4 ton Pickup (350 police interceptor)

    Remember: Search Before Posting | Fill out Your Profile & Signature
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  5. #5

    Default GM Achieves Technology Breakthrough with Smart Materials

    Smart materials will enable vehicle features to move without motors


    Air dams, which are important to
    reducing aerodynamic drag at high-
    way speeds are frequently damaged
    by low-speed impacts with parking
    bumpers, ramps and snow and ice.
    The "active" air dam, activated by
    shape memory alloy, can monitor
    vehicle speed, the use of 4-wheel
    drive and the presence of snow to
    intuitively lower or raise the dam
    to optimize aero drag.
    WARREN, Mich. (Mar. 8, 2007) General Motors scientists demonstrated breakthrough developments in smart materials technology at a media briefing today at GM's Research and Development Center.
    Shape memory alloys and polymers are examples of types of smart materials that GM is developing for use in its products. Smart materials can change their shape, strength, and/or stiffness when heat, stress, a magnetic field or electrical voltage are introduced. Shape memory alloys, and polymers in particular, "remember" their original shape and can return to it, opening new possibilities for many movable vehicle features.
    GM is targeting to integrate smart materials technology into its vehicles by 2010.
    "Smart materials will change the look and feel of our cars and trucks," said Larry Burns, GM vice president of Research & Development and Strategic Planning. "With these new materials, functionality can be 'programmed in' to enable innovative designs, improved efficiency, and new and improved features that will make our vehicles more exciting to own and operate than the automobiles of the past."

    On-demand control of the airflow into the engine
    compartment uses a shape memory alloy- activated
    louver system. Reducing the cooling airflow into
    the engine compartment reduces aerodynamic
    drag. The result is improved aerodynamics and
    drag reduction and rapid warm-up during cold starts.
    Actuators and sensors made from these materials have the potential to improve vehicle performance and fuel economy, and enable new comfort and convenience features. These actuators and sensors can provide significant benefits when they are used to replace conventional motorized or hydraulic devices by reducing vehicle mass, component size and complexity and improving design flexibility, functionality and reliability.
    A few example applications include:
    • An adaptive interior grab handle that automatically presents itself from a folded position to make for an easier, more intuitive entry into the vehicle,
    • Active vehicle surfaces, such as air dams and louvers that adjust to govern airflow, improving aerodynamics and performance, and
    • Hood, door latch, and glove box releases for more convenient access.
    According to Alan Taub, GM executive director of Research & Development, smart materials are building on previous materials advances GM has introduced over the last several years.

    A grab handle that uses shape memory alloys to
    move into position through a combination of
    temperature-activated shape memory and stiffness
    changes. Shape memory alloys could eliminate
    the need for a mechanical, motorized or
    hydraulic devices. For customer convenience,
    operation can be triggered by a button on the key
    fob, or by opening or closing the door.
    "These new smart materials follow a long list of material applications we are already using," said Alan Taub. "A few examples include novel aluminum forming processes that provide enhanced body panels and lightweighting, polymer nanocomposites that provide superior mechanical properties at lower cost, and magnetorheological fluids for improved chassis systems.
    "The properties inherent in shape memory alloys and polymers have the potential to be game-changers in the automotive advanced materials field, eventually leading to vehicle subsystems that can self-heal in the event of damage, or that can be designed to change color or appearance."
    Smart materials are being used in other industries in various applications including medical devices, cell phone antennas, toys and sporting goods.
    GM is collaborating with HRL Laboratories and the University of Michigan in developing potential applications. To date, GM has more than 175 U.S. patents issued or pending based on research work and application development in the field of smart materials.



    Jamie

    2007 Ford E250(Work van) (Ya, Ya, shut up!)
    1996 GMC Sierra SLE 1500 5.7L/4L60E

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