System and method for tuning the resonance frequency of an energy absorbing device for a structure in response to a disruptive force
First Claim
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1. An automatic energy dissipation system, comprising:
- a sensor for detecting a disruptive force applied to a a building;
a processor connected to said sensor, configured for determining a control signal based on a sensing data received from said sensor;
an energy absorbing device, comprising an enclosure configured to house an energy absorbing material, the energy absorbing device installed between a superstructure of the building and a foundation of the building, in a manner so that the superstructure is isolated from the foundation; and
an actuator, coupled to said processor and connected to said energy absorbing device, for tuning said energy absorbing device based on said control signal generated by said processor in order to alter a resonance frequency of said building.
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Abstract
The invention is a system and method for automatically adjusting the resonance frequency of an energy absorbing device in response to a disruptive force. By configuring an energy absorbing device for automatic response tuning, utilizing a controller coupled to one or more sensors for processing a determination primarily based on sensing data, the natural period of an overall structure may be adjusted (i.e. increased or decreased) so that the acceleration response of the structure is decreased upon being subjected to a disruptive force, for example, high winds, a blast from an explosion, or a seismic force caused by an earthquake.
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18 Claims
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1. An automatic energy dissipation system, comprising:
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a sensor for detecting a disruptive force applied to a a building; a processor connected to said sensor, configured for determining a control signal based on a sensing data received from said sensor; an energy absorbing device, comprising an enclosure configured to house an energy absorbing material, the energy absorbing device installed between a superstructure of the building and a foundation of the building, in a manner so that the superstructure is isolated from the foundation; and an actuator, coupled to said processor and connected to said energy absorbing device, for tuning said energy absorbing device based on said control signal generated by said processor in order to alter a resonance frequency of said building. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An automatic energy dissipation system, comprising:
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a sensor for detecting a disruptive force applied to a structure; a processor connected to said sensor, configured for determining a control signal based on a sensing data received from said sensor; a base isolator for coupling a lower portion of said structure and a foundation of said structure, wherein said structure rests on and is supported by said base isolator, said base isolator further comprising; a base adapted to attach to a support member of said structure; a cover coupled to said base in a manner so as to form an enclosure, wherein said cover is adapted to attach to said base and said structure; an energy absorbing material situated within said enclosure; and an actuator, coupled to said processor and connected to said base isolator in a manner so that a stiffness of said enclosure may be controlled by activating said actuator, for tuning said base isolator based on said control signal generated by said processor, wherein said tuning of said base isolator is for altering a resonance frequency of said structure to reduce a structural response to said disruptive force applied to said structure, and generating a damping force to reduce a structural response to said disruptive force applied to said structure.
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Specification