Ducasse Eric
Laboratoire de Mécanique Physique, UMR CNRS 5469, Université Bordeaux 1, 351 cours de la Libération, 33405 Talence, France.
J Acoust Soc Am. 2005 Sep;118(3 Pt 1):1776-81. doi: 10.1121/1.1993127.
Bensa et al. [J. Acoust. Soc. Am. 114, 1095-1107 (2003), Sec. IV] recently proposed a waveguide model for the transverse displacement of a stiff piano string. The study described here is an attempt to cast a complementary light on this topic, based on a common wave approach instead of a modal approach. A pair of weakly attenuated traveling waves and a pair of fast-decaying waves both satisfy the one-dimensional wave equation developed by Bensa et al. These solutions have to be carefully considered, however, for portions of string interacting with the hammer felt, the bridge, or the capo d'astro bar.
本萨等人[《美国声学学会杂志》114, 1095 - 1107 (2003)，第四节]最近提出了一个关于刚性钢琴弦横向位移的波导模型。这里所描述的研究试图基于一种普通波动方法而非模态方法，对这一主题提供一种补充性的见解。一对弱衰减行波和一对快速衰减波都满足本萨等人推导的一维波动方程。然而，对于弦与弦槌毡、琴马或琴码条相互作用的部分，必须仔细考虑这些解。
