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Vibration mode of a clamped square plate. The vibration of plates is a special case of the more general problem of mechanical vibrations. ... For a given frequency ...
For flat circular plates, p is roughly 2, but Chladni's law can also be used to describe the vibrations of cymbals, handbells, and church bells in which case p can vary from 1.4 to 2.4. [2] In fact, p can even vary for a single object, depending on which family of modes is being examined.
Jenny spread powders, pastes, and liquids on a metal plate connected to an oscillator which could produce a broad spectrum of frequencies. The substances were organized into different structures characterized by geometric shapes typical of the frequency of the vibration emitted by the oscillator.
When resonating, a plate or membrane is divided into regions that vibrate in opposite directions, bounded by lines where no vibration occurs (nodal lines). Chladni repeated the pioneering experiments of Robert Hooke who, on 8 July, 1680, had observed the nodal patterns associated with the vibrations of glass plates.
Each higher-order mode is “born” at a resonant frequency of the plate, and exists only above that frequency. For example, in a 3 ⁄ 4 inch (19mm) thick steel plate at a frequency of 200 kHz, the first four Lamb wave modes are present, and at 300 kHz, the first six. The first few higher-order modes can be distinctly observed under favorable ...
Of all the vibration plates out there, our team concluded the Hurtle Fitness Vibration Platform is top-tier thanks to the powerful motor, oscillating and tri-plane pulsations, and 20 adjustable ...
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