β Scribed by Erik V. Jansson
No coin nor oath required. For personal study only.
Strings, and especially their steady state vibrations, are often presented as simple applications of classical physics. The string vibrations on a musical instrument are, however.far from simple and it may be necessary to include complex coupling phenomena. This work represents the first steps of the author to get a grip on the main parameters. String and bridge properties were measured in isolation and on a violin. It is shown that the string resonances are effected by the violin. The string resonances excite resonances of the violin body at low frequencies, and the main bridge resonance at higher frequencies. The experimental results indicate a strong influence of the bridge resonance on string spectra. The bridge resonance can be measured by means of a monochord violin and explained by coupling between a string resonance and the bridge resonance.
π SIMILAR VOLUMES
The active wave control of the linear, axially moving string with general boundary conditions is presented in this paper. Considerations of general boundary conditions are important from both practical and experimental viewpoints. The active control law is established by employing the idea of wave c
## Abstract We describe a large new class of fourβdimensional supersymmetric string vacua defined as compactifications of the __E__~8~ Γ __E__~8~ and the __SO__(32) heterotic string on smooth CalabiβYau threefolds with unitary gauge bundles and heterotic fiveβbranes. The conventional gauge symmetry