Boots – shoes – and leggings
Patent
1988-10-28
1992-03-24
Gruber, Felix D.
Boots, shoes, and leggings
73462, 73469, 73660, G01M 128, G01M 136, G01H 1106
Patent
active
050994301
ABSTRACT:
For a body rotating on an axis and having a moment of inertia relative to the axis, an apparatus for dynamically suppressing unwanted rotational phenomena occurring relative to the axis of rotation, i.e., phenomena which exhibit themselves in a body only when the body is rotating about the axis, such as, dynamic imbalance and resonance at critical rotational speeds. One or more inertial masses are movably affixed to the body such that they can be selectively moved radially and circumferentially with respect to the axis. Appropriately placed sensors, such as strain gauges, accelerometers, vibration transducers, and the like detect the phenomena and pass pertinent parameters of the phenomena to a controller, preferably a computer, which analyzes the parameters to determine, among other things, the magnitudes of the phenomena. If a magnitude exceeds a selected threshold, the controller determines the optimum positions for one or more of the movable inertial masses to eliminate or effectively suppress the respective phenomenon.
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Gruber Felix D.
Tighe Thomas J.
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