![]() You can find the helper functions animateSixTuningForkModes and tuningForkFFT and the geometry file TuningFork.stl under matlab/R20XXx/examples/pde/main. In the cantilevered beam and tuning fork models, we considered undamped systems in which there is no mechanism to dissipate mechanical energy. This can be used, for example, for tuning an instrument. This example simulates these aspects of the tuning fork dynamics by performing a modal analysis and a transient dynamics simulation. If a tuning fork is struck, its oscillation produces a sound of a certain pitch. Therefore, a properly excited tuning fork tends to vibrate with a dominant frequency corresponding to fundamental frequency, producing a pure audible tone. The next higher mode with symmetric mode shape is about 6.25 times the fundamental frequency. We develop a novel approach to match harmonics and vibration modes based on the mechanism of multiple tuning fork structure (MTFS), through which it is. This axial vibration can be used to amplify the audible sound by bringing the end of the handle in contact with a larger surface area, like a metal table top. ![]() There is still room for improvement in the resolution of eff, which could be achieved by combining a thinner laser pointer with a higher resolution video recorder. The operating frequency of the centre can be easily switched from 9.2 to 20 Hz, enabling the application of multiple excitation frequencies. Transverse vibration of the tines causes the handle to vibrate axially at the fundamental frequency. This limit is imposed by the mechanical attenuation of the vibrating tuning forks, and it is difficult to increase it significantly. The frequency-adjustable tuning fork electromagnetic energy harvester significantly increases the range of frequencies used. The lack of bending at the base enables easy handling of tuning fork without influencing its dynamics. The fundamental mode of vibration does not produce any bending effect on the handle attached at the intersection of tines. ![]() The first flexible mode of a tuning fork is characterized by symmetric vibration of the tines: they move towards and away from each other simultaneously, balancing the forces at the base where they intersect. When struck on one of its prongs or tines, it vibrates at its fundamental (first) frequency and produces an audible sound. ![]() Perform modal and transient analysis of a tuning fork.Ī tuning fork is a U-shaped beam. ![]()
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